ENGINE TEARDOWN and ANALYSIS - Project Underdog #4

[@d4a]

Become a Tuning Pro: hpcdmy.co/dr4a Support the channel by shopping through this link: amzn.to/3RIqU0u Patreon: www.patreon.com/d4a

[@renz1013]

Satisfying. I like these kinds of engine builds where they explain thing in a simple manner

[@matthewmacmahon4072]

I had a charade with a de tomaso 1.6..and it had a s14 turbo on it..boost came on at about 3500..

[@renz1013]

@@matthewmacmahon4072 sorry i'm not well educated with engines. which is why I'm watching this youtube channel

[@LatinoAD]

I agree too

[@fraymond3]

Chillest engine teardown ever!!!!

[@LikeZO]

Oil pump carnage on my CA18DET as well when I first tore it down. Man that was such a long time ago, but I still remember the pain and 2 hours of prying, hammering and heating as well. What shenanigans.

[@timwright7395]

Great channel, keep up all the good work :) I still have a MR2 Mk1b that I bought when it was 10 months old. It puts a huge smile on my face whenever I drive It !!

[@rareangel643]

This is the best car channel i've ever seen. Please never stop.

[@pabauza]

Im impressed by the quality of this channel. I have been watching for a while now and it never disappoints.

[@802Garage]

I am sooo hype for this project. :D

[@magpieblue]

I enjoyed watching that teardown and the discussion throughout. Makes me wish I was doing the same to one of mine! Cars, company, and coffee. I think that'd be a great combination. Glad to see everything that matters is in good shape, and looking forward to seeing what you build from it!

[@kirkniese]

Can't wait to see how this works out for you man! This is really cool! Best engine rebuild video on the internet! Best to you !

[@TrgovacTrgovac]

Very relaxing video, even when U used hammer I was still strangely relaxed watching it. The engine looks really good, like 1.9 TDI VW diesel engines. After a million miles they look the same. I agree chillest engine teardown ever.

[@killerdinamo08]

VW TDI engines aren't a reference to any comparison other than dullnes 😫.

[@TrgovacTrgovac]

They make very good smoke :)

[@TheCabillaud94]

Great video, I liked how you made it so peaceful with the lofi music, minimal talking and even gentle (up to a certain timestmp) wrenching

[@d4a]

Up to a certain timestamp 🤣🤣

[@charleslowe522]

Love engine teardown vids. Can't get enough.

[@mightyweapon]

great video! for removing stuck crank timing gears I drill and tap two holes either side of the crank snout, like pulling a gear with threaded holes in it already for using a different puller, if still being stubborn, load up the puller, add some heat to the gear and shock the puller with a FBH

[@mac_le_maniac]

Love D4A keep that good content coming!

[@jonathonwilliams93]

For anyone interested, the heads cam design is what is referred to as a 'slave cam'. This build is gonna be long, but I wait on baited breath for the next 3+ years worth of episodes. Great job D4A.

[@fraymond3]

Big comfy return spring... Better make a T-shirt yo!

[@9Epicman]

3:57 😉 looks like he likes that engine a little too much

[@patx35]

The circular things on the intake manifold is for the EGR system on the California emissions variant of that engine. On the low emissions variant, the circular things would have been machined further and the EGR valve would be located there. Since you got the regular version, those serves no purpose and can be safely machined away if you want to port out the intake manifold.

[@mesharyRD]

Man you videos are just amazing. Your knowledge is something else. Can't wait to see what your are doing with this engine. Much love and respect🌹

[@Wolf-zb9qs]

Nice teardown, i have pushed the 5AFE to 250whp on watermeth + 95ron safely. Some larger cams, springs ,intake and porting and it will flow for alot more

[@dylangrant6890]

Really love this series!! just kinda wish it was on the 1nzfe engine, want to turbo mine but you don't see anthing much on KZbin about them. Learning allot from this Channel!!!

[@111soreal]

Can’t wait for the next episode of the under dog

[@ConquerDriving]

Maybe the sandy stuff was from a small long term coolant leak. Hence the use of tap water.

[@d4a]

Hmmm... Very likely

[@chadg6874]

I was wondering if it's been underwater

[@shaneschlievert5492]

Usually I use a 10mm bolt from one of the cam journals to hold the spring gear on the intake cam in place. They are kind of a pain in the ass to reset once they have sprung loose. The 4afe is one of my favorite engines. Super reliable!!

[@AaronBonBarron]

noticed that too, oops lol

[@DodgeCharger900]

4A-FE engines were the best Toyota engines ever.

[@georgerockwell-z3c]

Big comfy video. Fantastic content man, cant wait for more!

[@capretta444]

Super well shot, loving this series!

[@802Garage]

I wonder if those exhaust ports would be that much of a limiting factor, at least at your desired power levels. Head looks really good inside! I love to see a geared cam even if it isn't the "superior" arrangement. Does help get that nice steep intake angle though. Also wow those are pointy cam lobes. Metal shavings looked like they may have just been some stripped threads from the engine or a bolt. All the bearings look great! Awesome video. Can't wait for more. Look it's a boxer engine now! Hahaha.

[@hypocycloidiaspora]

Those pointy cam lobes leave plenty of room for improvement, that's for sure... I'm already enjoying this series and look forward to seeing every step of the build.

[@aig111]

Definitely a series I’m excited to see

[@Emberdrake212]

For some reason I love the smell when you're cracking cam caps or crank bearing caps, it smells so nice 😅😅😅

[@d4a]

OMG me too! I recorded myself smelling it but cut it out because it looked really creepy and weird!

[@anthonywendt5834]

The 1.8 and 1.6 are really great motors. We never got the oil coolers in the states though.

[@menooaderohanian4129]

Your channel is Awsome and helpful

[@awong160]

Nicely shot and edited. The voice over is very educational and fun/easy to follow!

[@manzelli1981]

The “sensitive images” warning killed me 😂😂

[@thegoodearth7]

Excellent project! I look forward to watching.

[@poptartmcjelly7054]

Could you make a video in the future explaining the different types of valve buckets? Hydraulic, solid, shim over, shim under etc.?

[@MrSwaggaMatic]

How can this soothing ,informative ,elevator music video have 17 dislikes ? Y'all hating for no reason

[@Just_In_credible6]

Cool. Im excited to see this build.

[@eschlenz]

Love your vids. One request. When you talked about head removal order, and bucket labeling, it would be nice to understand why that's so important. :)

[@jstotefalk]

Great video my dude, keep 'em coming!

[@robertvillafan1220]

Usually gaskets that block off ports are to help divert coolant into certain passages. It's weird but that's how they're designed. In my dads s40 volvo some ports were blocked off completely

[@d4a]

Yeah I've seen that too on some gaskets, but what's confusing here is how the gaskets actually has holes that lead to nowhere. These have zero purpose. Oh well...

[@robertvillafan1220]

I'm reaching here, but could be a recycled head casting and using a gasket is cheaper than creating a new casting.

[@91maxpower]

I’ve run into seized timing crank pulleys before and I drill a few holes and use a cut off wheel crack out a small triangle. From there a breaker bar will snap the gear in half, pretty quick and less chance of damage too the crank snout as well.

[@Wagonman5900]

I use a box with pop rivets in it to store the buckets in the head. This is due to marker rubbing off very easily on my first engine. I also cut holes in the box to store the head bolts.

[@XxMusclecarsxX]

damn you could totally reuse the bearings. Super clean

[@NickPahls]

That crank timing trigger wheel is what I used on my 7AGTE build. I had to cut it off the pulley and weld it onto a 4AGE pulley and it works great!

[@d4a]

I remember that actually! What kind of oil pump did you use?

[@NickPahls]

driving 4 answers I used the 4AGE pump since it flows more oil. Had to cut some material away to mount the sensor basically where the 4afe sensor is. It works great though, have it on my AE86 and another 7AGE I built.

[@vladkruglov7719]

Fun will begin soon

[@Brotherimlost]

Why don't i have post notifications on for you? I am always excited to see you posted new videos. Can't wait for some more turbo lessons. Keep up the great work!

[@SamFirthDesigner]

The captions applaud you for draining the oil :)

[@zeiktv2338]

I am not sure if it fits or if the diameter is smaller but the corolla e11 produced from 97-99 with the 1.3 4efe engine had an interesting tubular intake manifold with almost equal length from the throttle body to each cylinder

[@d4a]

Thanks for the tip!

[@abhishekchaudhary9542]

I usually watch videos at 480p to save my data. For this guy's video, I use 1080. Who in the world wants to miss details.

[@kio51423]

Well ma guy you earned my sub. I'll try keep up with your vids cuz I also have a 4afe which I'm planning on turbocharging in the future. Also I like how you explain your stuffs...Great indeed 👌

[@9Epicman]

Great channel man. Keep it up I can see it growing real big. What country are you from btw?

[@DesertPunks]

I have a 4AF engine and this is proving to be helpful lol

[@rogersgonc]

Nice video!

[@ישראל-ג1י]

The holes on the engine head gasket are actually fine. ~~ Always the holes of the coolant in the gasket are smaller than holes in the block or head. This is to make the coolant flow slowly to better cool the engine head

[@d4a]

They flow into nothing? They don't match up, it's a dead end

[@markhendry1761]

My understanding was that the gasket is designed after the engine and the differing size of coolant holes in gasket vs block is them tuning the cooling system

[@Milkmans_Son]

@@d4a According to Fel-pro it's fairly common.

[@pabitrikalita3940]

When he said sensitive content😅 then I thought what could go wrong, what could be a sensitive content while disassembling engine but after that what I watched was really a painful moment for me 😂

[@shaneschlievert5492]

2 circular divots in intake chamber are swirl cavities to increase atomization of air and fuel. Also they help catch excessive oil buildup from the pcv.

[@d4a]

Thank you!

[@nospoon4799]

@@d4a I agree with that. Pcv's are a pain imo.

[@therealboofighter]

This engine looks a lot like the 5sfe I have in my MR2. Same camshaft arrangement, narrow head. On the 5sfe the belt drives the intake cam though.

[@adamlazarus2687]

The head gasket design is normal i think. On Nissan CA18 it's the same design and it help cooling, to force water passing all the cylinder walls.

[@jozsefizsak]

That was tremendously enjoyable. I hope that doesn't mean I'm weird but whatever.

[@802Garage]

Not at all! One of us. One of us.

[@randyobert2218]

What is your background? I have been mechanic/fabricator/racer for decades and you have some exceptional knowledge for anyone at any age.. Big difference between fixing a machine vs knowing how it works, why it is designed the way it is.. I wish more understood the theory behind parts instead of just "parroting" what they have been told by manufacturers and sales people.. Understanding theory makes forensics on a dead part much easier..(and accurate).. great videos..

[@d4a]

I have a background in Human Rights :) Hilarious right? But cars and especially engines are my passion and I really enjoy learning about them and trying to spread the knowledge. They're fun to think about :)

[@jobariedunn7185]

Correct if wrong Tensonor is actually manual..... the spring is only fuctional during initial tensioning and if the tenson bolt loosens. The head gasket is indead correct the misaligned holes act as restrictions and help direct the coolant.. if you research coolant flows for the engine you would be surprised

[@d4a]

According to the 4age factory service manual, you let the spring do the tensioning, rotate engine three times and tighten the pulley at whatever tension the spring generates. You then check belt slack with a gauge and replace spring if slack is incorrect. I really should have explained the head gasket thing better, got a lot of comments on it. Yes, I know gaskets can be used to block of holes, but what's weird is that the HG itself has holes that lead into nothing. Dead ends. This confuses me because it has no purpose whatsoever.

[@BigFatDoobie]

I saw an intake manifold made of tubes and a can like plenum in e10 corolla. It was for sure original many you should use these type of intake

[@LeZturbo]

I’m replying to myself but still post the question so anyone could have the answer. The answer is in hour video #1 about your new project !!! Hello !!! So please you are doing this work !!! I have a Corolla G6R with the 110 horse power 4A-FE. I found a US full turbo-ing kit on ebay for the 4A-FE, should I go for it ? Question: Why not going to a 4A-GE at first place ?

[@jamescarey1945]

Hello sir. I am also doing this type of thing on my 1990 toyota corolla with the 4afe engine. Ruby the junkyard gem. Great information! If possible you should make the mr2 awd 😜

[@seahorse5677]

That's a cute little motor

[@Martin42006]

Some good work and I'm very interested to see how this build comes out. Watching you use a legged puller to remove that crank accessory pulley almost made me cry, there are tapped holes in that pulley for a reason and it's so you can bolt a plate puller onto it. I see way to many chipped and damaged 4age pulleys all because people use the wrong puller.

[@mzappas]

Nice vídeo! Good luck

[@samcoote9653]

Its 2am, jsut about to shut the comp down.... Project Underdog video uploaded minutes ago!? It's a teardown video!? It has D4A's sexy voice over it!? Who needs sleep!! this vid is amazing!

[@samcoote9653]

The boxer engine joke got a good chuckle out of me hahaa, god the warning did not prepare me for the sensitive content though! AHHHH lol

[@d4a]

Sexy voice 😚 now I'm embarrassed

[@buildingracingvideos4714]

Coolant passages very rarely line up exactly with the gasket holes. It's easier to cast heads and cylinders with the holes larger than needed then make the gasket with the proper size holes for proper coolant distribution. A lot of first year models in a series will have a different gasket than the last years in the same series because manufacturers will optimise the coolant passage sizes on the gasket throughout the series run to better distribute coolant.

[@d4a]

I get you but it's not about lining up. The gasket holes lead to a dead end

[@buildingracingvideos4714]

@@d4a same thing. If the manufacturer decides they don't need a passage in that spot a lot of times they will only delete the passage on one thing. Like you'll have a passage in the head, one in the gasket but the passage on the block is blocked off. Why change 3 things when all you need to change is one. Saves money. A good example is that really stupid zulu mod on Toyota's. I think it is the 1jz's, but they had cooling distribution issues so they blocked off the coolant passage on the deck if I remember correctly but left it on the gasket and head. Could be the other way around. I say the zulu mod is stupid because the passage was blocked because of distribution issues and people open it up thinking it's going to help cooling.

[@chuckfiero]

I am just wondering at how clean this engine looked on the inside and the shavings and the mismatched head gasket, along with the funk that was "coolant" I would hazard a guess that this engine saw a rebuild of some sort recently and the wrong head gasket made it end up in salvage where you then picked it up.

[@PhillyDee215]

Wowwwwwww that gear did not want to come off😱

[@allenlin6169]

its either flooded before or the water pump was leaking which the white stuff you see is probably either coolant deposit or aluminum oxide from the cylinder head.

[@danielc.7173]

I have a 1.8 L 4afe in my 95 geo prism I'm currently turboing as well :)

[@smacznego4133]

Hello. I have to 4a-fe with carina e, and swapping to newer car to project. And how did it work? it's a turbo, not a compressor (eaton) right? What about the power, and other stock? How rpm maximum power, and torque? I miss this engine for scrap. It is in very good condition, it's motors run in Africa. there will be no such engines and there is some potential as you can see. A compressor is enough for me, and about 160-170 horses (in a light car it is enough power.) Regards! 😊old engines the best.

[@jhuntosgarage]

Head gasket may have been flipped over 180 degrees. Kinda looked like it. Thanks for sharing!

[@d4a]

Someone mentioned that as well. I gotta look again and check. I'm curious now

[@WhiteFeather1x]

Pretty fun to watch lol.

[@asafgl4281]

Spring of timing tensioner is only for adjusting then you lock it with 12 mm main bolt..

[@fortuna_7777]

OMFG!!!!😂😊 I really, really, really wanna see 4afe turbo charged!! Ready to watch!!🤤 It's because 4age is not perfect!!😅 And I will post this to my page!!☝️😊

[@d4a]

The project has been finished and driven. You can find all the videos in my project underdog playlist 😁

[@fortuna_7777]

@@d4a I appreciate that!! I'm highly interested in 4afe engine and making it's performance better!! Toyota Levin often comes with 4afe & I believe it will be a good idea for a city car, now the question is how to make it run no worse than 4age!!👏😊 In fact I had a Levin with 4age & I loved it but only at high speed, in city limits it was a vegetable. The main thing I realized from the whole picture was Toyota engines can run forever even if some a-holes before you tried their best to destroy them ✌️😂

[@shhm007]

Yo I can't wait to see what you replace ....in this engine....this is the engine I have in my trueno (it's a good engine but more power would be nice..)....was thinking of swapping it with a 4age....

[@goodmanboattransport3441]

A small bearing seperator might fit behind the crank cog pulley

[@AkiWataru]

good engine, change fluids, belt and go.

[@Jaunpierre]

Good vidoes braaa

[@mrpartridge8765]

the exhaust manifold design is really good. I'm surprised it's like a 4-2-1 header.

[@Mango_McPoo]

YES!

[@slightlyinsaneraf]

Hell yeah!

[@km6832]

Apparently the S shape for the runners is better for flow. Still waiting that video on valve included angles and so on as well

[@km6832]

@Good Fitin and the longer the runner the more flow it has

[@ct26turboturbo84]

You could probably make yourself a spacer for your plenum n see if it gains any power

[@aromero9243]

@4:00 Girlfriend walks in: OMG, are you watching some sort of car porn? To weird for me I'm leaving. Me: No 🤥

[@Bredmirror]

I plan to make a similar project in the future, but with a supercharger. I really hope I can manage to fit one under the stock intake.

[@smacznego4133]

Im too bro. Swapping my 4a-fe on carina e to newer car, and include supercharger mercedes eaton. But what about the ecu, oe denso, its not good to tuning.. and what about transmision.The drivetrain will not match the original gearbox from 4afe. You will probably have to change the axle shafts, etc. what about the beam? a lot of work. not to mention the "paws" of the engine that need to be welded and adjusted. Did You succeed with the project?

[@Bredmirror]

@@smacznego4133 My car was totaled since, so it probably wont happen. Now I think a turbo would be a much better and simpler option.

[@K42013]

I see the thing 3 times with head gasket that doesn't fit/go to really hole. I always supposing for better heating for the engine at startup but not sure.

[@tonnyletkeman2348]

I'm just going off sound I think you need a little more air pressure for your impact gun. It sounds low and should be able to take that crank bolt off no problem.

[@motorsportsbd]

thank u so much sir,sir pls make a video how to install a ITB DIY at 4efe or 5efe or any toyota engines, love you forever and love your episodes too very much 😍🚗

[@AaronBonBarron]

Oh no, you didn't put a set screw in the timing scissor gear pre-tensioner before you removed the camshaft! That will be fun to fix lol

[@d4a]

That's not how things are done in this case. Service bolts are needed only when the sub-gear is removed and reinstalled. Upon reinstall of the cam all I need to do is align all the timing marks and possibly measure backslash. So no, there's no need to "fix" anything.

[@jonesaleroy]

The circular cutouts I think are vortex generators to pull the oil out of the airflow?

[@KapiteinKrentebol]

Nice vid. Maybe I need to take up a hobby too. 16:00 Try WD-40 and loosen it with a torch or heatgun.

[@cravendelossantos]

Great video! Just want to ask what header spec do you recommend for a N/A 4AFE? 4-1 or 4-2-1?

[@syedminhazuddinrizvi3068]

If you rebuild this and properly turbo it with all the detail electronics then my country will go crazy on it.. cause we got lot of these laying around and need a proper boost for diy projects..

[@reneneron2971]

Yep, cooling system has been ignored. Not a big deal; rest of the engine looks like it was maintained well. I recommend that you do NOT alter the combustion chamber to reduce compression. There is no need to reduce compression ratio if you are using an aftermarket ECU, and reducing squish will make the engine more likely to detonate...whether it is turbocharged or not. You want to minimize the squish area to maximize performance,

[@Mike_to_the_k]

Will you do an explanation video on trans axels please