Why Some Cars Have a Timing Chain Instead of a Timing Belt

Why Some Cars Have a Timing Chain Instead of a Timing Belt, DIY with Scotty Kilmer. Timing belt vs timing chain. How timing belt works. How timing chain works. Timing belt or timing chain, which is better? How to check timing belt. How to check timing chain. Timing belt inspection. Timing chain inspection. The history of timing belts and timing chains. Everything you need to know about timing belts and timing chains. Car advice. DIY car repair with Scotty Kilmer, an auto mechanic for the last 50 years.
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[@scottykilmer]

⬇️Scotty’s Top DIY Tools: 1. Bluetooth Scan Tool: amzn.to/2nfvmaD 2. Cheap Scan Tool: amzn.to/2D8Tvae 3. Professional Socket Set: amzn.to/2Bzmccg 4. Wrench Set: amzn.to/2kmBaOU 5. No Charging Required Car Jump Starter: amzn.to/2CthnUU 6. Battery Pack Car Jump Starter: amzn.to/2nrc6qR ⬇️Things used in this video: 1. Common Sense 2. 4k Camera: amzn.to/2HkjavH 3. Camera Microphone: amzn.to/2Evn167 4. Camera Tripod: amzn.to/2Jwog8S 5. My computer for editing / uploading: amzn.to/2uUZ3lo 6. Video editing software: amzn.to/2jv5Fhf 7. Thumbnail software: amzn.to/2k7tz6C 🛠Check out the tools I use and highly recommend ► goo.gl/rwYt2y 🔥Scotty Shirts and Merch ► goo.gl/pTAeca Subscribe and hit the notification bell! ► goo.gl/CFismN Scotty on Social: Facebook ► facebook.com/scottymechanic/ Instagram ► instagram.com/scotty_the_mechanic/ Twitter ► twitter.com/Scottymechanic?lang=en

[@type2523]

Scotty Kilmer the best is the concept of the vw type 4 ,the only thing you have to do is adjusting the valves

[@type2523]

Scotty Kilmer Mercedes and a lot of vws have timing chains

[@weemzgamez4714]

Loved the edit when you brought up the Celiac 😂

[@ronvalley1973]

excellent information scotty, thanks and you rock dude!

[@suesan5111]

Holy cow Scotty, how many videos do you make in a week? I would be exhausted. Hey, how about that link for the hot chick leaning on that old school vw love van ?

[@MrJoeGarner]

Love the fact that your videos are only around 5 mins long. Cover a lot of info and no bullshit. Thanks Scotty!

[@originaLkomatoast]

He talks too fast for Texans.

[@jeroenjansen2709]

5 minutes of bull

[@manstersr]

Exactly and no loud rap music that you can't hear him speak over.

[@garlicgirl3149]

I don't mind longer videos as long as there is a point to it.

[@ayo30s]

No Doubt but I don’t mind the longer videos either, 👍🏾👊🏾✌🏾🇳🇬🇺🇸

[@justinwilliams827]

Love how scotty always sounds like he’s 9 shots in on a Wednesday afternoon

[@estrada8989]

Lmao, I always think the something!

[@nyabinghidjehutti8855]

I thought it was just me who thought that 😋

[@MilYun704]

That's why he's my guy 😂

[@yobryan88]

Rod Stewart? 🤣😅

[@aygwm]

I was thinking a couple lines.

[@davidrice2669]

An honest man, you should be proud of yourself Scotty!!!! I’m a mechanic aswell tho I don’t do these videos I’m glad you do you help arm a lot of people with knowledge

[@JJames.]

Couldn't Agree More with what you said mate.

[@michaelkelly6583]

I know nothing about cars but have learned much from you. I’ve come to look forward to your humour and energy. Bravo, Sir!

[@godgirlsguitars]

Filming at night. I appreciate Scotty for the hard work he does and for his honesty.

[@noelmedina6925]

He’s probably filming at the same time as always but the sun sets earlier

[@godgirlsguitars]

@@noelmedina6925 it has been getting dark sooner. I just thought he was bored one late evening and decided to make a video .

[@drchilapastrosodrlasmacas438]

I thought Scotty mentioned that he usually films in the mornings? It looks like dawn, to me.

[@MrWeareone777]

Adam F He's definitely like a cybernetic organism, a living tissue over a metal endoskeleton

[@alanraylocklear1117]

Rev up your timing chains

[@ChrisJones-fn6tw]

..unless you're driving an older Nissan

[@annebradley6086]

LOL!!

[@faiqcreates]

Pew pewwww

[@pcmacp719c1]

Rev up your Chevrolet Sonic with an Ecotec 1.8 interference engine!! Vroom! Vroooom! Vrooooooom... *_SNAP!!!!_* Change your Timing Belt on time... _OR ELSE!_

[@bencrosbie]

😂😂😂

[@turbo2000gt]

This guy does videos the way I like: concise. No fluff, just right to the point and hammers your with points.

[@MrSihle1]

Scotty was a Japanese Toyoda engineer in his last life time

[@krishnachowdhary7511]

😂

[@tkrdg7885]

🤣

[@siberianstuntman3344]

Scotty San!

[@josejuancervantes4686]

😂😂😂😂🤭 Yea, sure, he was 🤭🤭😂😂

[@kn520]

Scotty 'Toyota' Kilmer :-D

[@petercandance2330]

Plus, a timing chain will give you ample warning before it breaks, a worn chain will make considerable noise, enough to be noticed. A belt will just snap without warning.

[@dosmastrify]

Or a tensioner can seize with no warning (same result)

[@andrewstones2921]

A belt will give more than sufficient warning, its called an odometer and being able to count the miles/years since it was last changed.

[@video99couk]

Yes the chain on my last 1972 Hillman Avenger made a horrible noise when it was worn out. The engine wouldn't have smashed itself up but changing it anyway wasn't too expensive. My present 1972 Avenger had the chain checked when the engine was rebuilt, didn't need changing. Good for another 46 years or so.

[@andrewstones2921]

@black guy Technically you are correct, but I was not being a dick, I was trying to express my opinion that if the timing belt is changed on time (by miles or years) then it's not likely to be a concern, and the "warning" is in the owners handbook rather than waiting for a noise. Sorry if I was not clear.

[@steve_put_this_here]

Absolutely not true. My parent's 77 Buick (Built with the 403 Olds engine) broke a timing chain with no warning - unless you consider a loud "BANG" a second before it broke "ample warning"! A chain link can snap on an otherwise decent chain. I recall my 79 305 making a hell of a lot of noise; not so much for the chain being worn, but rather the nylon teeth they put on the gears. That didn't break, but you could bet money that the gears and chain were replaced with a good double-roller chain!

[@WelcomeToTheMadness]

If you want the real reason for anything do a financial analysis. Chase the money, it’s always the clearest answer.

[@jamescalifornia2964]

✔Sad but true ...

[@hanskinslo326]

Follow the money!

[@xs10z]

Except as Scotty said, timing chains cost more to manufacture than belts, yet most Toyotas built today have chains (some diesels actually have gears)

[@drink15]

That’s true except when its more beneficial to spend more money to make more money.

[@tientrinh6906]

Are you one of those commies who don’t realize chasing money has allowed us to buy food for $1.50 in 3 minutes?

[@NeoJSsk]

I just put in my search “Why some cars has timing belt and not chain. First thing come up was scotty face... I smile 😎

[@Zeus-kj7nn]

Really enjoy your informative and no nonsense approach to the car industry. You are an asset to your viewers. Rest assured, you have saved decent folk alot of money and un necessary hassle who've watch your content. This is from an ex Mercedes Technician. Keep up the great service Scotty. 👍

[@ozzstars_cars]

Less wallet pain with a chain!

[@suolihuuhtelu]

unless you have that one one bmw where it costs 4000++ to fix and all of them were faulty :D

[@Your_username_]

Ettei olis ollu e46 318?

[@waifuracer6516]

Well... Replacing a timing chain can be a pain on cars with bigger engines. on a 3 or 4 cylinder its a 10 minute job and about 150bucks but on a V shaped engine it can cost a fortune.

[@edwardmartinez199]

It happened with gears to on Dodge the gear was made from alloy center and plastic teeth just as bad as a belt. All done for quite motors. Chevy no problem non interference but Dodge look out Pontiac to.

[@suolihuuhtelu]

n47 engine

[@whitewolf323]

Belts are for clothes, not controlling valves.

[@christineayres7094]

Yeah it's ludicrous to have a rubber belt controlling the timing of an engine, a timing chain should be mandatory on all cars

[@bar-sabas4801]

😂😂😂😂😂😂😂😂😂Absolutely right

[@christineayres7094]

@@bar-sabas4801 Yeah manufacturers use rubber belts to save on costs and so the consumer has to come back every 80 thousand miles for new belts, saying that the Alternator belt on my car is up to 101 thousand miles only just Now making a squeaking noise but luckily the engine has a chain not timing belt so no worries there

[@sonny12681]

Cars have timing belts because cars wear pants too 🤣🤣🤣🤣🤣

[@davecrupel2817]

Thank you. Chains are superior in every way.

[@techytrendysolutions6063]

Your a Living Legand Scotty. Keep up the great work!

[@preni428]

When I see timing chains have issues it's with the chain tentioners not the chain itself

[@WhitefolksT]

Ford Cologne 4.0 SOHC V6. Weak guides and tensioners. A chain on front for one bank and hidden chain in the MF BACK for the other bank, IMPOSSIBLE to repair rear without engine removal.

[@Trident_Euclid]

@@WhitefolksT similar problem with the older gen Colorado V6 engine.

[@Arz2003]

This is one of the issues the 95-98 Nissan Sentra's have is the tensioners. You hear rattles but they are excellent cars

[@Joshg1984]

@@Trident_Euclid i thought Colorado's only with 4's and inline 5's

[@rogersanchez9635]

WhitefolksT yes now that engine is bullshit typical ford

[@ricardojishar8936]

I love how straight to the point these videos are. I feel like I’m asking the old guy at my local shop for advice.

[@mikezerker6925]

Scotty’s channel is so much better than all those other car review YT channels that only talk about power and performance while not focusing on long term dependability and reliability which is much more important to consumers!

[@Presto100]

This chap makes it look so easy and he is very clear and precise love watching these vids

[@johng8967]

Belt or chain, If the tensioner fail you hope you have a non interference motor.

[@rudycaballero392]

Them right.

[@SpareRoomPokemon]

So true. At the shop I work at we get several ecotec motors that come in and the guides are broken and the chain has quite a bit of slack in it. Broken guides and weak tensioners is not good.

[@Shino2600]

How do you know buying a car if it’s interference or not?

[@SpareRoomPokemon]

@@Shino2600 Good question. Honestly the owners manual won't tell you, a car salesman will most likely give you a blank stare. I googled it when I had a Civic to find out if it had an interference motor or not. Most vehicles have interference motors unfortunately. The only non interference motors I know off hand are Toyota's 1MZFE and 5S-FE (90s Camrys).

[@OtherDalfite]

@@Shino2600 no real way to know just by looking and most people won't know. 2.3 Ford motors are non-interference or at least my 98 rangers motor is. Just gotta Google it

[@brettblizzard13]

Watched a few videos of yours. I’m sure you get this a lot but you’re like the Bill Nye of all things motorized. I learn so much from these uploads because your charisma and fun attitude makes learning so enjoyable and retainable! Thanks a ton and keep em coming 👌🏻

[@bigdippervizionzjr5479]

🕺🏽💃🏽

[@supermanreturns3659]

I hate cars with timing belts. Another point of failure

[@CookiesUnleashed]

Badly designed timing chains are also a huge point of failure

[@brian_jake]

@@CookiesUnleashed true esp with plastic guides

[@patrykrog8121]

@@CookiesUnleashed ive got a car which needs the chain reaplaced as often as the belt so its more expensive. We need to go back to gears

[@kevinburns5762]

Ha ha. See BMW n47 diesel engine

[@aygwm]

As opposed to a chain that has hundreds more points of failure?

[@paulrodrigues9603]

Makes you want to slap the guy who sold the timing belt idea to the engine MFG's

[@christineayres7094]

Yeah timing gears and chains definitely the best, it's outrageous back in the 1920s cars were built to literally last a lifetime where as some of the crap cars today have planned self destruct dates , for example anything made by GM seems to explode after 7 years ,where as anything built by Honda will last you 20 years no problem

[@richracing7420]

@@Tiffany.1970 timing belts aren't bad. I prefer them on classic cars as a chain still needs maintence, especially if it relies on a tensioner

[@brian_jake]

@@richracing7420 true. I prefer timing belts because it uses pulleys for tension whereas the timing chain uses guides which are plastic. None is superior

[@jerryp2433]

Some German cars have problems with timing chains.

[@werearethedreamteam3724]

it's all about making money my friend.

[@JTstratman13]

My Honda RC51 uses timing gears and I think the gear whine sounds incredible paired with the V-twin roar!

[@Skidtire]

Geared cams sound better than anything else, screw the people who cry about the whine

[@fidelcatsro6948]

yup i love the whining noise of those VFRs!!! I wish my Suzuki bandit had those cam gears!

[@MacDrizzle209]

Had Sato exhaust on my RC51, music to my ears. Not to others 😂😂😂

[@breddary]

Lol, I really want to own that bike! One of my favourites and the BEST sounding bikes apart from the R1s with the crossplane crank.

[@electronicsNmore]

Excellent video as usual. My 2.7L/V6 Sonata has a great engine, but it's an interference engine. I replaced the timing belt last year at 128,000, along with the idler pulleys, water pump, and hydraulic tensioner. The other belt was in good condition for 8 years old. Took 4 1/2 hrs to replace everything.

[@99ron30]

The 2.0/ 2.4 Theta I is a chain engine in the Sonata, I would go with that personally. Not the Theta II, that sucks.

[@chrisbrunswick1398]

electronicsNmore :

[@Naturalhit]

Interesting. I have a 2.4 4 cylinder Santa Fe. I changed the timing belt, and replaces the whole timing pulleys with a kit. The belt and the pulleys were still in great condition. I could've just left it alone.

[@AlexDlugosch]

@@Naturalhit The rubber exterior of the belt may have been fine but the tensile cords in the belt are affected by fatigue over time, and there is no way to inspect these. Just before a catastrophic failure of the belt, the cords begin to break progressively and the belt lengthens slightly as the fibres break and pull through the rubber slightly. But again, there's no way to determine when this is actually happening before the belt completely fails.

[@user-do1dx6js5z]

Thank you for sharing your experiences with the people of the world❤️❤️❤️

[@michaelzernie7092]

My buddy's 2008 Jeep Compass is scap metal now because of the cheap timing chain. Thanks Scotty. Your videos rock

[@zudemaster]

Scotty "I use a timing chain to hold my pants up" Kilmer.

[@waatao9856]

You're editing skills are next level Scotty keep it up!

[@kingsleymodeji620]

Scotty is amazing. Watching his videos has severally saved me money

[@rosepots5451]

Your video helped me decide what is best for me in a car for the long run...Thank you.

[@stanroberts4820]

Changed the timing chain on my 77 GP at 300,000 miles. The one removed showed little ware,and was still good. Sold that car with 417,000 miles on it, I still miss that car!

[@Elkins82ify]

Fantastic info, Scotty! Thanks for sharing your wealth of knowledge!!

[@gregm5408]

I love the 🐍 under the hood. That made my flipping day. Good explanation on the Timing belt and Timing Chain Scotty. Keep it UP!!!!

[@simplelyrics7657]

4:05 “steel chains” almost sounds like he’s singing it😂

[@buddytheweim]

ChAaAins

[@doctorfeinstone6524]

Chayayains

[@kevinburns5762]

Ha ha 😂 proper made me giggle

[@jblyon2]

My Dad's first question about any car: "Belt or chain?"

[@samtosh975]

Old school 👍

[@fourtry]

Belt

[@willcal3679]

I love non-interference engines! 👍💯

[@kenguse4081]

Will Cal a

[@raydavies6236]

@Joe Paul Toyota still are mostly

[@richguev]

What are some good reliable non interference engine cars? With cams not hitting the top

[@ANDthe3]

@@richguev 97-01 Camry with 4 cylinder for sure.

[@eeyyaakk6801]

Will Cal how would I be able to know just by looking at the engine bay if the engine is non-interference?

[@mahhubbard]

Scotty dude I've seen all your video's. Well most of them I'm becoming a car guru, and driving the guys at work crazy with my Scotty says info, your the best.

[@Player16]

Hey Scotty, Back in the day, Ford made their engines (302 in my case) with a timing chain, BUT the timing gear had a thick nylon tooth coating on it. It would disintegrate at about 120k miles. The fragments would fall into the oil pan and get sucked up by the oil pump.Then you'd have to remove the pan AND the pump to clean it all out.

[@8080pc]

I had a '74 Mustang II, had 2 timing gears. one of them was plastic on the outside so it broke and I replaced with 2 new metal gears (aftermarket). Ran well for many years. Nice Video as always.

[@WhoWouldWantThisName]

Defeats the whole point of a chain. Leave it to Ford. Yet one more reason I stay away from their crappy designs. I'm with Scotty, Hondas and Toyotas, you can't go wrong.

[@sebione3576]

Thanks Scotty, for filling in the gaps in my knowledge :)

[@habans1]

5:09 "and people want quieter cars, they dont want louder ones" shows pic of riced civic

[@christineayres7094]

The timing gears idea is what I want ,I don't mind a whining noise from the engine especially if it will last a million miles lol 😂

[@vehiclemaintenanceandrepai3790]

Nice informative video Scotty, you gained another subscriber, greetings from South Africa.

[@douglasgrant8315]

Thanks Scotty for this info on timing chains vs timing belts.. I didn't know this.

[@chewie3397]

This man is fantastic love his videos

[@frankyjas5184]

Dude. You’re awesome. I hope you never die.

[@st.michaelthearchangel7774]

This video was very informative! Thank you for sharing.

[@dparsons1225]

I love this guy... He is funny and informative..

[@anonymike8280]

He was for some time when he was younger a professional member of the media.

[@baldheadlogic]

Thank You for this review

[@Bunkysworkshop]

We have a Tundra and a RAV4 and I do believe they both have timing chains. Great info Scotty. PS. No one want their rubber to break. Lol.

[@utid1957]

Thanks for the video Scotty

[@glassdude6996]

Great info as always bud!

[@Pfsif]

Rubbers break, ask any NBA player.

[@iliatchaplinski]

Or yer mum 😁

[@SourGrey]

I see what you did there... Lol

[@TENNSUMITSUMA]

Gold! I owe you a steak dinner!

[@Broncort1]

In that case...ask most Kardashian women. 😏

[@Lurod_]

Lol

[@NeoJSsk]

2:06 that image right there tells that Scotty is just epic accurate with ur reaction 😂😂😂🙈👍🏼

[@GH-oi2jf]

It isn’t the rubber that resists stretching in a timing belt, it’s the fiberglass or kevlar (or other material) reinforcing cords. I think Scotty knows that.

[@sahilsangwan6371]

Exactly

[@Daehawk]

My timing belt broke once as I approached a red light. instant dead and no start. Fun.

[@xaenon]

It can happen with chains, too - though more often than not, it's because the chain slips rather than breaks. Had it happen on an old Chevy. The chain didn't stretch all that much; the issue was that GM used a cam sprocket that had its teeth jacketed in nylon to help keep engine noise to a minimum. Over the years, the nylon got brittle and started breaking off, and once enough had worn away or broken, it left enough slop in the timing set that the timing would eventually jump.

[@laryanryan9170]

@@xaenon. Yep. Been there done that. Back then it was recommended to replace those GM chains at 60k miles.

[@ChrisBenoit4evar]

el oh el

[@yamahayz0426]

yeah you were supposed to replace those every so often. Heck my 1980 chevy truck i had to adjust the carbs in the fall and the spring for the change in weather. I think we all forget how much maintenance old cars really were.

[@TheOriginalSycHolic]

my GF's 2.5l did that right on i-95 in the middle of ft. apache the bronx around midnight driving home. lucky for us we had still had a bottle of bacardi 151 and met some cool people who helped us find a towtruck (they said cars get stripped on that part of the highway all the time and smart not to gotten too far from it..) a parts store, and a garage did the work for $100 overnight while we all hung out and drank and worked on the car. (bet you thought I was going a different direction when I started this out... ^_^ ) she got lucky the head and crank didnt slip it was the intermediate shaft that went to the distributor and thrown the spark timing off.

[@GameBacardi]

I'm happy with timing belt in my Toyota Avensis 2000 (4A-FE). I change belt myself, it easy beacause there is plenty of room to work under the hood.

[@donjohnson2639]

Great video. I like when you get into the history and evolution of engine design and manufacturing 👍

[@garlicgirl3149]

Me too. It helps you understand why we are where we are now and the pros and cons of yesterday.

[@katet7313]

Wow! That is the most informative video I have seen! Great job! Thank you!

[@bojned]

Hi Scotty, I am from Europe and have to say that things said here are only partially true for Europian cars. As it goes, car manufacturers tend to skip out on material quality so we had cars with a lot of timing chain issues. It culminated with VW Golf TSI engine which had a timing chain that I would not fit on a bicycle, let alone on the car. People reported that it overstretched after 25.000 miles only. On the other hand, modern timing belts are not made solely from rubber anymore. Today they are made from glass fibres and aramids (like kevlar), and some manufacturers (like ford) introduced wet timing belt system and they can last for hundreds of thousands of miles.

[@Michiganman800]

No one cares. Europe is gay

[@bujdosomarci]

@@Michiganman800 alright big boy

[@TII331]

I know a ford engine with wet timing belt and the original belt never lasted long. Atleast the European ones didn't.

[@Snake2303]

better gay than a murder!

[@audiawd7511]

MC Polž haha dobra

[@alexvieira7945]

2zzge baby..long live timing chains😎😎

[@VincentCS34F]

I have the 2jz-ge...... belt and interference (vvti) :(

[@alexvieira7945]

@@VincentCS34F :(

[@alexvieira7945]

@2012日本語がわかりません cool then.

[@Phannty]

I wish I had the 2zz... stuck with a 🐌 1zz

[@alexvieira7945]

@@Phannty lol 1zz is not that bad

[@AJ-em2rb]

i watched you at 2x speed and you were one of the most entertaining highly educational videos i've seen. not what i was looking for when i clicked, but hey i learned a lot of good into along the way lol

[@NightWear21]

Great video scotty! Thank you.

[@toadiri]

That snake under the hood did it for me :)) you can tell Scotty has a lot of fun editing his videos :)

[@MrM13arcos]

The mechanic john lennon. Good video Great explanation Thanks for teaching us

[@Arrozconchopsticks]

😂

[@nvrndingsmmr]

Thank you for the info Scotty!!!

[@christopherkast8045]

Great video Scotty, one interesting twist is the Gates RPM division Kevlar racing belt I used on my Porsche 944. It is 3 times stronger than the OEM rubber belt and I didn't want to leave anything to chance with the 2.5 liter interference engine

[@Alecw51]

69 Mercury Cougar V8 had timing chain. However, the crankshaft sprocket was steel but the camshaft sprocket was some sort of composite that wore out. (I bought it used so I don't know if it had been previously replaced with cheap parts). Easy to replace timing chain and sprocket. Replaced timing belt of 74 Mustang II. But it was hard to put the belt on while keeping the sprockets lined up. It seems like it took a dozen tries. I'm glad they are back to gears. But I don't do my own repairs anymore. I'm too busy and modern cars are too cramped under the hood.

[@ldnwholesale8552]

All Ford gears of that vintage had nylon faced alloy cam gear. With a link belt chain. Actually quite a big job when they fail as you have to remove the whole front of the engine and drop the front of the pan to get the cover off and back on. And often end up with an oil leak after. Or pull the pan by lifting the engine up as far as it will go, removing the sway bar and pull the pan out by turning the crank so as to wiggle the pan off. though that is the best way as there will be all the dead gear crap in the pan anyway. Days work however with a p/s AC car.

[@Network126]

Let's go back to timing gears!

[@undateablejake]

Best timing ever invented. Good thing that for some engines you can get an aftermarket gear sets.

[@psi23k]

I love the whine. Sounds like a supercharger 😂

[@davecrupel2817]

Agreed. Im an aircractf mechanic. Trust me when i say every little 1 engine or 2 engine reciprocating engine plane you see or hear uses timing gears in their engine. Nothing less than *top shelf reliability* is even PERMITTED in aviation. And so it should be in automotive as well. And i question the "whining" problem because you dont hear it in aviation engines. But then again, aviation engines are far from quiet. Lol

[@machscga6238]

Get a Diesel truck... They still have timing gears

[@kiwidiesel5071]

Good call, I'm a Heavy diesel tech, the big gear only uses timing gears, had roller rockers and double overhead cams for ages too.

[@andrewgibson1991]

Awesome video Scotty like always thank you

[@stephenwilliams5201]

Thanks for the timely. Information.

[@Deski502]

Scotty is a true O.G..he letting the truth be told about these scandalous car companys..salute

[@russellgilbert3453]

All of a sudden, I love metal timing chains!

[@Salisbury2015]

Very informative, thank you!

[@gregreed402]

Your so good at explaining and know what your talking about cheers and have a great day

[@hanskinslo326]

The old Ford 4.9L/300 cu. in. inline 6-cylinder engine has timing gears, in case anyone is interested....

[@Second_Insight]

I had one of those in a F150 when I was younger and dumber. Didn’t know what I had cuz I would have kept it. Those engines are legendary and were used many years in UPS trucks. It was a great motor.

[@chieftp]

yeah - a friend had one in a 70 pickup. it blew up when he was doing about 70 on the highway.

[@jonsmith919]

They put that in vans, bronco even f-250. Ford stopped putting them in 1996 . 300 cu inch 4.9 liter. Legendary motor

[@anonymike8280]

@@chieftp Either severe use or lack of maintenance.

[@daleslover2771]

Han Skinslo In my opinion you would be hard-pressed to beat those helical gears.

[@knowsenough2bdangerous]

The problem I had on the two timing belts that I lost about 20 years ago (one on an interference engine 😢, one on a noninterference engine 😁) was not that the belts "snapped". Both sheared off the teeth on the belt at one location. Examination showed that the teeth on the belt were cracked and degraded. However, having looked at more recent belts replaced after 10 years, the belts seemed to be in much better shape with no signs of cracking. Perhaps the belts have improved? I don't think the engines are running cooler (which would presumably cause the belts to degrade more slowly).

[@kkot1984]

when ever I search anything related to car I always end up watching Scotty's videos. Real legend

[@joebertlagahino7224]

Ill keep in mind Scott...thanx heaps

[@19jacobob93]

A timing chain is a prerequisite for me when buying a new car... Of all 5 cars I've had, all have had chains. Have clicked 345,000km in my 2000 Ford Falcon and it still runs like new with nothing but fluid changes and the odd pulley replacing. Services cost me around $20-30 every 6 months on an engine with such a simple, solid design!

[@VoloKinProject]

Plastic chain tensioners...living that Jaguar XJ8 life.

[@Nist12]

a plastic piece in the engine block? wow.. why they do this

[@VoloKinProject]

@@Nist12 saving money I guess. Second gen were half plastic and finally after 4 years the 3rd gen were all metal.

[@RickTrajan]

Good luck looking for chain guides made of metal

[@jonsmith919]

Toyota 22r has chain guide problems

[@Yhrim70]

how about the plastic timing gears...

[@SeanHawthorne83]

Excellent explanation. Thank you

[@cruzrobledo6631]

You are a genius i am amazed of all your knowledge Thank you for the great videos.

[@tomswinburn1778]

Loved my old ('96 and older) Ford 4.9 litres. Or 300 CID inline six for you old goats. Gear to gear, no timing chain. And those engines were built like a tank. Originally designed for industrial applications they got put in pickups as a temporary measure. That turned into long term. Great for us old guys that ran the wheels off service trucks. Bulletproof old iron.

[@charleshansen9502]

Ford's best engine. Bulletproof.

[@dw4940]

Interesting info. I just know they used em in older mustang's. Will file that away

[@weemzgamez4714]

Loved the edit shown when you brought up the Celiac 😂

[@duketogo2616]

You silly yak.

[@weemzgamez4714]

steve b Weird thing to get mad about but okay? 😂

[@jrpeet]

Really informative. Thanks

[@childrensongs677]

Awesome video brother, thanks a million. 😎

[@FordGTmaniac]

The main reason why timing gears aren't used nowadays has nothing to do with expense or the whining sound they make. Timing gears receive harmonic vibrations from the engine and adjacent parts pick up some of it. This trips the knock sensor in modern cars which makes the ignition timing go wonky.

[@dosmastrify]

BAM!

[@lilsammywasapunkrock]

My car has a knock sensor and a timing chain... As well as most modern over head cam v-8's for the last 28 years...

[@sw96]

@@lilsammywasapunkrock He was talking about timing gears (ie. a series of connected gears), not timing chains (ie. two gears linked via a chain).

[@brandonpeterman9964]

Good ol ford 300 straight 6 timing gears from the first one produced all the way to 96.

[@HardWhereHero]

@@lilsammywasapunkrock you need to learn how to read.

[@HelloThereUniverse]

Morning Scotty!!

[@scottykilmer]

morning!

[@Emmettaug]

I love Scotty's sense of humor with his funny picture snips lol always makes me laugh

[@victoriafront]

Enjoyed every video you make im taking mechanic course. What I love most allll the commentsss

[@dins5066]

I had my timing belt changed on my Acura MDX twice already. At 70k miles the first time to play it safe. And just did it recently at 145k miles. And my mechanic showed me my old timing belt it still looked almost new so those rubber belts are very durable and could easily do over 100k miles.

[@pb8582]

I have a corolla 200000km on it never did the timing belt still look new... Changed on my Hilux 10 years old 150000km did not even need it... Toyota belt good rest no good

[@xStrayMongrelx]

I always hated timing belts in principal. The first time I saw one, I thought the engineers were completely insane. I spent a couple of hours trying to wrap my head around why any engineer would choose such a sloppy and poor solution to something that absolutely needed maximum reliability. This is why you should never buy a brand new car. Always buy used, a couple of years after all the bugs have been discovered. Scotty, I worked as a transmission mechanic. Quite often, we had to do rebuilds that required engineering updates to improve lubrication or solve other factory issues. It would be interesting for viewers to know how often brand new cars get these unknown updates that are only addressed after equipment failure, during the repair process.

[@CurlyFromTheSwirly]

You should buy used card cause they are more affordable. If you can afford a new car, it's best to wait till the end of the year when both delears & makers are offering incentives. By that point plenty of people have already noticed and reported the bugs your talking about.

[@Natures_Symmetry]

Awesome video!

[@scottastell9415]

Thanks Scottie.

[@TexasP00nTappa]

247k miles on my 04 Honda Accord, still going strong thanks to the timing CHAIN!

[@bEEBO178]

Why upper case?

[@muhammadislam0000]

247k!?😦

[@TexasP00nTappa]

@@bEEBO178 Chains are superior. No rappers named 2 belts, only 2 Chainz.

[@tuoitreomaha9096]

Kinda sad cuz they put back timing belt for accord gen 8

[@st_us]

VW Tsi ahead of the game using bicycle chains as cam chains, Innovation at it's finest.

[@samusitake1782]

stilkus true that, I have a VW Tiguan with a timing chain and no issues. I had an 2008 Passat with a timing belt and had issues.

[@PigHumanoid]

My 09 A4 is at 122k. Feels like a ticking time bomb under the hood.

[@hojnikb]

So does BMW :)

[@tigercat0924]

It's always the vw chain tensioners that fail which causes the engine to jump time and break valves. Mostly due to people not checking their oil. Very common on early vw cc, eos, b6 passat, mk 5 & 6 gti. There's even a warranty extension on it.

[@ryanguillory6647]

This video was really good. 👍🏽

[@jerryh4719]

This guy makes cars interesting...I've learned so much just because of his energy