How a Simple Mistake Cost Me an SR20DET Engine

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I finally get closure on the SR20 mysterious knock & then realize it all could have been prevented if it wasn't for a simple little mistake...
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[@justed1569]

Sammit: please don't give problems the SR20: I DONT WANT PEACE I WANT PROBLEMS ALWAYS

[@Aaryan197SakeN]

😭💀

[@SHIZURAKU]

😂😂😂

[@nickthaotaku7700]

This comment 💀💀💀🤣🤣🤣

[@Spacedout209]

Man I remember you assembling this block so meticulously and being so hyped to see it rip. Coming back even stronger tho I hope

[@Spacedout209]

@wrx2hot4u coming from someone thats put 100% of my time and effort into an oem ka24de rebuild and it worked out perfect... luckily because I could have so easily missed something after doing everything I could because I'm a human and I can look at something and see a 10,000 of an inch and not many people can so I don't see why you throw hate at one of the many great content creators we have bringing us stuff to watch and enjoy and bring some light to this dull world

[@louischurch8013]

@@Spacedout209 I’m surprised you even gave this guy the time of day he probably doesn’t even own a car with a name like that lol

[@kristinorr3237]

Man www.youtubecomm.com/watch?v=CUjE7Q4SI3p Coming back even stronger tho I hope

[@Spacedout209]

@@louischurch8013 im pretty humble so I don't mind entertaining stupidity 😅 some people might actually realize how ignorant they are if not then no skin off my back

[@wvkd]

@wrx2hot4u how you supposed to learn what to do the fuck nigga 🔱🔱🔱🔯🔯🔯🔯

[@Forcefed2002]

The piston ring installation tool can overstress a piston ring quite easily. I had a customer who expanded the ring past its tension limit with that tool and ended up in the EXACT position you are. I use my fingernails to open the ring JUST large enough to slip it into it land, its slower but insures you dont have that problem.

[@Franks_Garage]

Yeah its a lot safer to do everything with rings by hand, I would never use a ring expander ever, and when going into the cylinder use fingers one ring at a time

[@box6982]

same

[@tturtle1659]

Or it got broken or stressed when he was putting the piston in, sometimes if you're not careful they catch on the block edge...

[@hotboisideways6729]

I would agree with you, but Okachan does have 30 years of SR knowledge under his belt let alone other engines, I wouldn't discredit him for something like this that he does weekly (I'd assume)

[@Forcefed2002]

@@hotboisideways6729 i have 30 years of engine building knowledge also...a piston ring is a piston ring..they all go on the same way

[@SteveTheBeardedWonder]

Way to stay positive Sam. I am shocked man,you put this motor together so damn meticulously...crazy. Youll get it back together and ripping here soon man! Stay positive!

[@leeruss979]

Generally speaking .... forged pistons need a little more piston to bore clearance ...that cylinder clearance was I LITTLE too tight .. (the others just got by..) The lack of clearance BROKE the boundary layer for oil film to keep metal away from metal...and the piston Ali picked up on the bore metal.....

[@festa289]

The pistons are normally made with the extra clearance if required ie. if the bores are bored to a nominal size (or are standard), they should have the correct clearance and not require extra clearance to be honed into the bores. im picking the ring gap was set in a big area of a distorted bore, so the ring butted when it got to a tight spot

[@tomzxr79]

sleeves always get oval after time. you never put new pistons in a unbored or honed engine. get new pistons and sleeves. have the sleeves bored to the measurements of the pistons. always measure the work of the machineshop with an inner gauge with 3 points balance your pistons yourself. when you put on the head. measure the squeeze first and than determinate the thickness of your head gasket. Good luck with the build. hope to see a lot of vids

[@davidfloener7539]

Even the give away car engine was done at a machine shop, but not his personal car in japan!?.. Tough lesson

[@unfknknown9678]

@@davidfloener7539 cOnTeNt

[@internalcombustion8744]

my exact thoughts like wtf and im a amature mechanic and i know these things lmao im so surprised they put brand new forged pistons in a stock bore??? whaaaaaat . of okachan does that im starting to question all his other methods 😳

[@devinej8411]

You should always check ring gap in a high performance engine by checking close to bottom middle then top gap maybe perfect in middle but bottom is tight or loose at top ect also a 60$ 2in to 6in Dail bore gauge is a great tool to check out of roundness

[@BlackyBrownDestruction9337]

A 3 spoke adj cam gears will break loose if the valves touch the pistons which saves mines a couple times

[@joepeluso3864]

The dowels on a s15 engine might be longer because the s15 with a 6 speed has a dual mass flywheel, and the s14 doesn’t. Also the dual mass flywheel on s15 makes it harder to replace the clutch than on a 5 speed s14.

[@L.C.A.car_adventure_channel]

The fastest and wisest would be to take the 2.2 block from Okachan. Definitely don't buy only the one piston because the wear will not be the same and you will be still stuck on about 500HP what doesn't make sense and you still invest all the hard work. The common sense would definitely be 2.2 if you want to unlock the full potential.

[@_eiryfatguy_1381]

Last vid he did say he liked the feel of the 2.0 though. Idk anything ab cars really though so if I say something stupid that's why aha

[@classys-chassis6433]

I would go 2.4 if he can I think that's the biggest bore kit you can get for a sr20det but I think he should do a vet head he would be able to make more power and u don't have the rocker issues that the det heads have.

[@uniquewhite1836]

I don’t watch every video on this channel but doesn’t he only have a couple drift days on the car? It would be stupid not to reuse the pistons (apart from the bad one obviously) and rods if the engine was just built with that little run time. New piston rings and oil rings all round, there shouldn’t be any wear on the pistons already… all they have to do is check the skirt width and the width all around the pistons just to make sure. For the rods they will obviously put new bearings in since they can.

[@davidfloener7539]

@@uniquewhite1836 he will need to step it up with the re-sleeve. Larger bore size

[@dakineracin]

No replacement for displacement

[@qwide2525]

Happy for you, Sam. Thanks for telling us the whole story! Waiting for the new block assembly videos.

[@MJPilote]

That is lubricator error, and detonation combination. Sometimes you see that when oil squirters fail and pistons get hot and ring gap goes away, or too little gap on piston rings.

[@aku-pf4tl]

Don't think so. There may have been a little burr on the ring and it caught and snapped the ring. The oil squirters are only there for cooling and the engine can run completely fine without them.

[@TheChrisey]

I'm more towards detonation or manufacturing error on the rings. lubrication error is super unlikely because even without squirters, a ton of oil gets sent up the bore. It's more of a difficulty to keep the oil away than to keep it lubricated. Out of round bore is also not a likely case, because all that would do is give you worse compression.

[@Carlos-kk4nw]

@@TheChrisey hks rings are extra stiff.. they probably damaged it during install..

[@Forcefed2002]

@@Carlos-kk4nw YES - over expanded with the ring install tool

[@MJPilote]

@@TheChrisey did you notice that the damage is on the pressure side of the piston? I have seen this on a racing engine after oil squirter failed and piston lacked cooling from the oil. So lubrication failure. Oil does more than lubricates the pistons on high horsepower engines. Piston gets hot, ring gap goes to zero and this is what you end up. I ran a motorcycle dyno shop and built engines in the past. Not the first time seen this kind of damage.

[@toddyrightonit]

Dam a check with a bore guage before you even start messing with a second hand block is always essential

[@kilobravo584]

would love to see you do 2.2 and go all out with this build! Make her go VROOM!!!!

[@patricksilver9341]

Yes i agree😁

[@toddyrightonit]

Get yourself a work bench too, towel everything down before you assort the parts out neatly neatly then cover everything with plastic while your not working on the engine. Having everything just sprawled out on the ground on cardboard is asking for contamination

[@chrispy211]

Can I buy that piston? Lol

[@TheChrisey]

You definitely should have consulted with Okuchan before buying that 600 dollar tool. That was a waste of money. Aside from that, good progress learning otherwise

[@adampinczesgarageandfabric9930]

great detective work, it's so gratifying to finally put all the pieces of the mystery together and they all fit. Do the SR right and how you want it and while you wait I think theres an R33 in the corner that wants some love. RB25.........?

[@i-_-am-_-g1467]

Another expert in the comments here, let me put forward my opinion but convey it as fact and demand you do the thing the way I do it because like every other comment expert, I know what's best for everyone.

[@andrewwilbanks5326]

Keep up the great content and cant wait to see you back in the states soon. I know the CT boys will be stoked!!!

[@mikeboyd118]

from the look of that ring, i think your dead on the head with the bore being slightly off you can see the ring rubbed and got hot * it thinned and flattened out where the discolouring is ( in turn expanding and using all the ring gap then snapping at the hot spot) super unfortunate bud. keep your head up you did everything right ( on video anyways ;) lol ) was shit luck and this stuff happens build it again and now you know something new and to look out for in the future ! cheers bro

[@m0rg6n74]

I think you should research which bore and what kind of SR setup feels the best for drifting. As this is your main drift car (comp car maybe?), you should set it up in a way that feels the best for you, along with what will be best for its usage.

[@tayzpaid4471]

Dudes 12 bro let him have his moment

[@m0rg6n74]

@@tyrellwashington747 What I mean is like what kind of power numbers feel best for drifting an s15 Silvia. Find out what figures give the right amount of power and torque to feel the best when drifting. I know there's a lot of other factors that go into it, but I'm pretty sure that has to be one of them for making the perfect drift car, which is also a preference thing. I guess I'm just saying Sam should do whatever feels best for him.

[@m0rg6n74]

@@tyrellwashington747 it made sense in my head :\

[@KacKLaPPeN23]

Please measure in your piston clearance and bore roundness correctly next time. It's actually kinda important.

[@shaun7057]

You probably already know this but future reference you can take a screw driver And put the metal top on several different locations that you think the noise might be coming from and then put the handle up to your ear. It will get you to almost the exact location of the noise as it amplifies the sound. It works really really well as far as one of the several procedures taken to diagnose a problem. Anyways sucks to hear about your block

[@knifethrower9733]

Maybe should've sent it to a machine shop before building the engine, with motors I find everything works best when you take your time and if it's worth doing Do it right!

[@Rmx2011]

Just like you said, I'm glad the culprit of the sound was found. Onto a sleeved block we go!

[@gdvitone9227]

“There is nothing but happy accidents” -Bob Ross No seriously I’m glad you found the problem. Everything makes sense now!

[@bassman9544]

at this moment sammit relized he fuccd up :(

[@MegaBaron77]

Get some measurement tools, show us how much happened to the block

[@365havenotime]

Looks like a machining mistake. Bore shouldn't be oblong like that for a long long time. You can use a dial bore gauge or a cheaper option a "snap" gauge and micrometer in multiple places.

[@foamdataservices]

Love my T gauges, saved me a load of money.

[@レオナルドジェームズ]

2jz be like Sam! Sam! Sam!!!!!!!!!

[@michaeljevtic2505]

i have to say i never saw anyone while he was building the motor check the bore with a dial gauge for roundness and for runout which is like the first basic step of what you check when you are looking to rebuild a block

[@joshualang1399]

Honestly your s15 is my dream car, you give me so much inspiration to never give up man, keep up the good work

[@TheRedFez]

Can you find a Nissan sunny/pulsar n13 saloon in Japan?

[@OllamhDrab]

Ah, so it was in fact a piston skirt slapping. I was thinking more of it being caused by too much play in a wrist pin rather than an out-of-round cylinder or whatnot.

[@fariznazreen9138]

Hayy sammit love to see your progression ❤ i also pro motor bike racer. In malaysia some time we just use petrol gas or part cleaner to check if valve are licking . But love to hear that you know about that right now. Add your experience ❤💪

[@TNTkix]

Time to go k24 brother. The life is great over here.

[@1tonystunts]

Bro i keep telling people the k24 is where it’s at. I bought 2 of them at 850 a piece just for my stash😂. I love the sr but damn they can be a headache.

[@jcues03]

Ka24

[@Podman75]

Be a maverick and swap in a z31 vg30et or vg33e with the z31 tubo parts. Make that 500hp goal easy with nissan power. People hit 500 boosting na vg30e on stock internals. And easier to work on than the z32 dohc version. paired with a megasquirt 3 gold box ecu the engine has a lot of potential. I love my 87 300zx turbo with this setup.

[@Clamestar]

Must be time for a RB swap????

[@cjcox1480]

Sleeve it. How are the spira-locks? You’d think you’d have serious blow by. Did the compression check out after assembly?

[@greenp6]

Go big or go home, drop an LS3 in with a supercharger

[@buildingcarsissohard1813]

Big turbo SR is just fine

[@DeepakDeepak-dn6qb]

Sam:if you guys remember.....shut up sam,,do u remember when you made fun( alot) of adam lz engine failure...so thats karma 🤣🤣

[@manlybanda6156]

Hey Sam? I think you're due for a worksuit ey? I think it's time. You're messing up your clothes. 😂😂😂😂

[@Jordan-mi6qj]

Failed because of SR lmao 😂 K swap that thing an have 500hp on a stock block an its reliable

[@andrewpapay471]

everyones FIRST engine build fails, lol..... thats usally why theres a scond, and third

[@WhuDhat]

sad that ram needs open heart surgery/ a transplant. I think you should use the original block if at all possible, and maaayyybbbeee throw a Tomei 2.2 stroker crank with new over bored pistons hey?

[@uuldriks]

Last year in some video it was like 'Oh yea, gotta win a few events and by the end of the year I'm in D1' 2022: Engine fucked.

[@luislanderos7560]

I think you should go all out and overbore to 2.2l. Realistically you shouldn't have to rebuild this next engine again in a while hopefully, so upgrade as much as you can

[@Unko-Q]

looks like the SR gods have come to you to let you know they have deemed you are to do a VE head swap. Thus they destroyed one piston and that number 1 cylinder wall having its pre-existent issue Darton sleeves and nice forged aftermarket VE pistons for valve clearance for a ve head hehehehe :)

[@classys-chassis6433]

Sam do a vet head for more powa baby and you won't have rocker issues seen sr20det blocks with vet heads make a 1000hp on a aussie drag s13.

[@chuckzamzow9]

Simple mistake but good attitude and moving forward. Shit happens but a better engine opportunity can happen.✌👍

[@shukriebenzlab3488]

SAMMIT you a really cool genuine dude that seems really humble & respectful but I see you 1 of those that dont reply to your viewers comments & for those that are gonna hate on me or call me petty im friends with dudes that from 20k to 50k subscribers & they reply to comments thats how we became friends obviously they ignore the dumb stupid hater comments but the good & just normal questions that also shows u actually taking note of the what they doing they reply to but bro u say leave comments but dont u dont answer the questions or suggestions anyways im not hating I really enjoy ur content & the type of person u come across as I hope u really genuinely the way u r on camera so yeah bro take care

[@MiguelSanchez-st3pv]

Do a ve head none of the major KZbinrs in your space has done sr20ve -T s15 go with the p12 20v head for max results

[@secretsquirrel726]

He got down to the chewy, crunchy center of the forged SR20DET and found his problem.

[@PitBull4004]

Hoping you don't do the next break in by cruising down the highway. Hard tell from the camera and I could be wrong but it already looks like that cross hatching is hard to see/ smoothed out. Need some load to break in properly and bed those rings, so we can see this thing rip without issues 👌

[@geoh7349]

nope thats text book cylinder bore wash. likely from the crappy dw injectors. they fail all the time and have poor quality control.

[@oscarreynoso6914]

I'm really surprised on the damage of the bore it could of been way worse like a broken ring land or you could of cracked the cylinder wall

[@alimemis3864]

I already told you under your other video that you were explaining engine problems I said it’s because of your forged piston just keep forcing the bores

[@marshalparker4434]

"those are the only 2 guys who matter with SR" HUGE mistake!

[@GenocidalDemon]

Anybody else see the crazy looking van in the background at :35 ? Lol. The wang though on that thing.

[@HORSEDICKoMPEG]

I commented in another video, That the best feeling is taking somthing apart that you think is broken and actually finding it broken! becasue then you can fix it! But if you take it apart and its all fine its like uh oh.. lol

[@aarontopfer558]

If you want a fast turn around why dont you just buy the 2.2 block from okachan and get the block you have re.sleeved and do a really cool engine swap with it like into a evo would be really cool

[@marvikenplowingandracing4668]

You could hone it, but as the slives are weak and it´s essentially a race motor I don't think that's the best idea. But as long as you get a new pistone that is in balance with the other then I don't think you should need more then one new piston, but I am used to old 50's and 60's stuff so could be different for this sort of stuff.

[@magradrift6271]

Piston ring tool I think bro, maybe you knicked it or it was over compressed and cracked the ring, damn man that sucks but it can happen.

[@jasondoulkeridis6202]

Why did Oka Chan say oh wait was that the motor? That implies it was already 20 over rather than bored to match the pistons. Also what grade piston did you use?

[@christianhoagland4789]

Hey boss man, there is a chance that cylinder 1 got super heated when you where boosting hard and it could have ran super hot from running lean, while drifting with all the boost and load, running lean for 20 seconds is fatal

[@Jamie_aka]

its awful trying to have to explain why your engine went, as everyone online will point fingers and you dont want to personally blame anyone shit just happens

[@Cuzzyrorydriftmansilviasx]

SR20 junk motors

[@pranaidesingh2011]

I say it all the time and I'll say it again... Sammits uploads are life right now

[@pranaidesingh2011]

Would be really cool to help you out bro ..employ me as your assistant/filmer😂

[@lenzikka]

2.1 already coming towards mainland so why not go 2.2 on this now then. As you said all depends on parts you can get unless using that block.

[@lowcruiser9976]

just leave a 2 litre. sleeve the block and get a new piston. you already have a 2.2 litre in the blue S15. really wanting to see RB Content

[@MiguelSanchez-st3pv]

Everyone knows about putting fluid to find leaking valves cmon Sam lol

[@Jack-wu3ie]

What's worrying is my forged engine, for the last 11k miles has really bad piston slap on cold start. How your piston 1 is how all mine are. Bores are immaculate and there's no damage to the pistons. I use Wiseco pistons and I've heard/read they do that

[@clairebear5029]

Did you put piston rings in and check the measurements throughout the entire top, middle, and bottom of the block's piston bore? I made the same mistake on my first build.

[@LethalBacon_]

Yup same here. Common mistake lol

[@switz10]

Suck you did not even get a 1000 KMS on the engine and all that work. But at least now you know and move forward and build it better

[@ijjohnson07]

Was prob a groove in the block before it was built cause the ring to get hot in one spot and crack, .5mm oversize less work and cost

[@user-ft6nr2ho9g]

The tapping kinda sounds like piston slap. And that would allow the piston to whack the sides of the sleeve. I dont know why the piston rings would fail like that.

[@barrywaldron9758]

I know it’s an expensive option but VE head? 9000rpm turbo sr goodness w

[@stump5t3r]

just been watching FDJ dude you need a 2.2 SR like Yamadas that thing sounds nuts

[@thatloudCG5]

(randomly cleans engine, finds the problem) "NANI?!"

[@kanenstuff]

May as well put a HKS stroker crank in glad you caught it before it went boom.

[@islandclub69420]

you & oukatcharn driftweek6 running sr20det ..you got time

[@andrewjaipeshad3377]

We got rod knock ruddy… now introducing Piston Slap Sammy!!!!

[@geoffreypurcell6893]

Okachan sabotage to ensure the apprentice doesn't overtake the master, he done you dirty Sam lol 😆

[@timothydumas1170]

Yo Sam mate is your Blue s 15 on mainland yet if so take the part that you need out of that one and if it breaks or blows up it all good as you where saying you where going to Replace a lot of the part’s on it anyways

[@warrioryfm350x]

This is the problem with trusting a KZbinr I have never tore down a engine and not looked at the bores thoroughly.

[@kridselot7383]

i would say: no bigger bore. You break your engines as they are ... so more power ... more broken time ... and no competition

[@internalcombustion8744]

wait did you not get the blocked bored to those EXACT pistons ????????

[@meernawaz4967]

True it's bin 3 weeks I forget I have to buy that small kit of screwdrivers

[@juanrochabandgeek1]

I swear sam how are you an automotive channel and dont know how to check for valve leaks you spend mad time talking and not checking

[@internalcombustion8744]

dude if okachan let you put forged brand new pistons in a stock bore evennnn if its the same bore size on paper. Then im not sure you can trust any other things he says about srs 😳

[@xgremoryx1644]

Fuck it RB swap

[@davidw381979]

To spend all that time and money on a build and not have the block checked first just does my head in....

[@paulhughes1546]

Go 2.2 then you can have more fun and have no problems when you want to put the power up more so go all out and do the 2.2 Sammit

[@autofficinaprojectd5143]

Camera di combustione troppo nera troppa benzina rischio di autoaccensione ,e l'eccesso di benzina incombusta ha lavato il film d'olio dal cilindro provocando il grippaggio .che sfiga pultroppo quando si hanno cavalli e questo il rischio del gioco .detto ciò un abbraccio forte e buona fortuna sei il top

[@phils51]

Isn't that the engine you whispered adam lz to. You cursed your own engine

[@amakadius75]

Ring failure. Time to sleeve it! I had to go up a size on my rb25det

[@The101Shadow]

Ah man its piston ring fail now u have to bore block and for cause oil pressure can cause it if engine runs hot it puts more oil to cool off but that causes pressure to build up its good that piston dint cracked

[@ppseven4009]

When are you building that Civic? Let’s get some other cars on the channel.

[@taylorperry7843]

U can use gas to flip it and fill the chamber and mark the full level with a marker or whatever and give it a while and then check to see if the level inside the chamber has dropped at all