DIY Subaru Shortblock Rebuild - EJ25

[@Captaindan7141]

Impact screwdrivers that you hit with a hammer are perfect for those screws on the back piston pin access hole.

[@Dirtcheapdaily]

+Dan Bonnett the last shop to rebuild it red locktite them. The welder heated them up enough to crack the red locktite

[@Captaindan7141]

Dirtcheapdaily Remind me to never go to that shop!

[@Dirtcheapdaily]

+Dan Bonnett right? I won't say the name, but it's a pretty "reputable" Subaru shop in Utah.

[@wyomikey65]

What about using a propane torch or MAPP gas to heat and loosen the bolts?

[@TheActualCaveman]

Mine got red loctite too. The impact driver bits broke trying to get the screws out...

[@mrJayGarage]

I just got 2002 Impreza outback sport 2.5 together, I used a 2005 Forester short block I just change the pistons to match my head, I just want to say thanks, your videos encourage me get it all done.

[@SimpliCharts]

A video outlining the steps on how to properly measure bearing clearance would be very useful! Also, at the step of removing screws for the plate, a punch screwdriver is the tool used to remove it.

[@matthewguilford9340]

They have that on every car channel, get the motor trend on demand stuff, alot of the stuff he's doing is there as well, he's just doing subaru spec stuff

[@Blingstar450r]

The sight of you using a hammer instead of a dead blow to seat the case halves made me cringe.

[@Dirtcheapdaily]

+Tom J yea we weren't too thrilled either, but you do what you can

[@ofivenojoe]

You need to go thru without bell mouthing, so you can avoid barreling the center, you want around 45 degrees This is for oil retension to help break the rings in. You can order ten over rings so you can set your own end gap instead of what they send, I normally go four thousand per inch of bore, and those oil control rings can be easily cut to fit, they tend to stay close to the same size, their job is not to seal, but provide oil and cooling, keep on , it will run great!

[@oleksandrkozyr2434]

Oh yes, to remove those philips screws use punch similar size to the head of the screw and punch pretty hard with small hammer. Sometimes takes few tries. They come out easy then with normal screwdriver

[@ajl227]

I have a spare EJ253 from a '99 Forester that I'm about to rebuild. Thanks for this upload! P.S. also going to use your turbo DIY for my 2000 RS coupe!

[@suttencheeny1]

Please invest in a rubbet mallett, was so painful to watch. Still great vid keep it up ☺

[@groomlake51]

Great vid guys seems like your very competent but it’s time to buy some inspection tools. A dial bore gauge and some mics will go a long way!! When dealing with piston rings you must understand how critical it is!!! When dealing with rings .0001 matter and yes I mean tentohousends!! When picking rings for a application is very important to look at the rings specs you need vertical clearance with the ring and the groove to let the combustion pressure get above and behind the ring to seal the bore. .0002-.0003 can make or break you!! I’m forced induction the trend is to go to a super low radial tension ring and let the gasports seal them when there’s positive pressure over the crown of the piston and dry sump and vacuum pumps to seal them when there’s negative pressure. All manufactures with hold there product to a slight different size . This is why in the Performance piston business I have To know what rings are being used before I can engineer and plan the costumers pistons to manufacture . There’s also a ring called a .017dikes or .043dikes top and second ring . They are the go 2 ring in any super or turbo charged high power application only down side is the piston has to be machined to except the ring. Next time you are trying to clean carbon if pistons try baking soda works great for combustion chambers exhaust ports and intakes that see EGR

[@tonyrichmond9428]

wire welding in flip flobs. HUGE stones on this guy, lol. I had a couple chunks burn through my shoes once...

[@flyboynextdoor]

Always like the channel but finally something Specific I can Use! Don't like the dingle berry hone though, prefer the stone tripod myself 200-220 grit for 5 mins.

[@evanbassett6210]

Impact driver is the only way to get the phillips screws out intact. You would have that cover off in under a minute. Pry from the top through the sensor hole.

[@pcrb141]

I can only imagine that the purpose of this video was for people who already know how to rebuild an engine to watch someone else go through a procedure they are already familiar with. No explanation as to what you're doing, what you're spraying the various parts with, what you have checked out on the engine. Many steps of the re-assembly were left out. I assume that if you're going through the trouble of installing parts to the block, you have checked the cylinders and housing for cracks, scratches, out-of-round and taper, and if you have sent the block to a machine shop for anything but we wouldn't know from watching this video.

[@markcozzie]

I'm curious how long this build lasted??,those pistons looked lose? I watch Subi-performance and he sure builds them differently,doesn't use all that sealant

[@joelyboyblue]

loved seeing it come together,

[@bowjensen9994]

Man, you guys are my new superheros. I needed to see a step by step as I began my rebuild. 2 machined heads sitting in my trunk and 20 month-old baby screaming at me with no empathy in site.... timing... is essential... no pun intended, but I'll take it. LOL. Wife is at breaking point as am I. I find some video of 2 guys shooting as they build to get it done. Hey, I know the rings were a bummer, but you got me to where I needed to be. I have a neighborhood that is against me, because they see me working on my car tirelessly(literal in both ways) to get this car running and expect me to give up and tow it away. Not happening. find street parking somewhere else. I'll stop now. The public gets the idea. You guys are awesome!

[@Dirtcheapdaily]

Keep at it man! I can totally relate to dealing with all the priorities and a screaming baby. Lol It makes it even more worthwhile when you do get it done

[@groomlake51]

Lol I’m watching your vid because while I build and engineer nascar and nitro engines my son just blew his second subi up and it’s coming apart and frightens me lmao

[@oscarp9336]

Why would you reuse pistons, and connecting rods?? Shady tree mechanics at its best!

[@joshuacampbell4800]

how did this engine hold up? can we get an update?

[@anoncanon1100]

Also that welding trick was creative.

[@midnightdrives5112]

its going to be fun rebuilding my ej25d.

[@Invitingsauce]

OMG. Somebody actually using WD-40 to Displace water. Haha.

[@scottprisbrey]

I've always heard that WD-40 is one of the worst things use inside an engine.

[@bitomaxsp]

Maaaan, why do you use the steel hummer....... Jesus :)

[@oleksandrkozyr2434]

Cool video guys. Don’t mind all the people who bash you for no reason. Things maybe not done perfectly but it’s done. Will it run? Absolutely! I’ve done it similar way, quick fix

[@Baker5695]

How much should I budget for a rebuild like this I plan on getting a junkyard motor and freshing it up my self before I put it in my vw bug

[@Dirtcheapdaily]

+Zac Macpherson new bearings and rings really arent that much. I can't remember what we spent on these. This case and inards have been in storage for the last 5 years and we finally threw it together. Should only be a few hundred. 👍🏻

[@matthewbolton4289]

its most likelly thr heat from the weld breaking them oil cover screws loose

[@brewerbrian420]

I will be doing an EJ205 rebuild in the near future. Is the process nearly the same? Will be my first engine rebuild other than some dirtbike and lawnmower engines. Cheers

[@Dirtcheapdaily]

+brewerbrian420 yup! All the flat fours are the same. I used to build aircooled vw engines and it's surprisingly similar

[@brewerbrian420]

Thanks for the quick reply. Great to know. Keep doin what you are doin. I am learning alot.

[@lagg-alot8308]

The front 2 main bolts are 29.5 ft/lbs the rest are 37

[@nitrosmurph21]

Ok for my Subaru motor heads . Question... I was re assembleing my connecting rods and everything went pretty smooth . My one concern is one of the connecting rod bearings seams alot more stiff (tight) . I took it apart and put it back together a few times checking everything . These is no scoreing and it seams clean . It still moves but it seams to have about 7 pounds of resistance . The other ones just flop arou d with eze .... It's not scrapeing and it moves really well just with more pressure . Is this ok ? . I don't get it . Everything was seated correct as well I looked a few times . I did use a siginificant amount of assembly lube I'm wondering if that can be a part of it ??? !!! I don't want a spun hearing right away I'll be pretty upset !! Picture below is the old spun bearing . I got a donor motor with low miles and used the crank and rods . I also got a kit all new bearings and rings and seals ect :)!

[@Dirtcheapdaily]

+john murphy you shouldn't have any resistance on the rods. Keep fiddling with it, unbolting the rod and pulling the beating out, until it'll drop and flop by itself

[@groomlake51]

Cross hatching is so oil sticks to the cylinder wall

[@VenturiLife]

Also encourages the oil wipe and compression rings to bed in properly during the break-in period.

[@f32msprt4]

Hey man I’m really new to Subaru!! So if I have an N/A ej25 and if I want to boosted can I just upgrade block, camshaft and something that strong to handle the boost right?

[@TGABS]

That's awesome!!! - bummer at the end though. Shoot! Progress and then not.

[@KevinEdgar]

Hello, was wondering if this motor is still running and how many miles are on it. Currently rebuilding my ej255

[@anoncanon1100]

My ceramic coated pistons look like that; are they still reusable?

[@BJPr12]

Where did you get your piston rings? OEM or after market?

[@user-xk5so7wb2t]

Bro, Did you Mic the journals bearing? No Rubber mallet ???

[@f575gtc]

What size flex hone did you use? Is that the 101mm 4 inch one?

[@theilest33]

Quality video, subbed!

[@matthewguilford9340]

The only thing I wanta know is why wash all the factory oil off of everything just to wd40 bath it

[@asork]

did you put the o-ring for the water jacket

[@markomikic6394]

Remont tvog motora je samo zamena karika?

[@BrokeAndBoosted]

Is this engine still running?

[@derrickquintal]

Your thumbnail is clickbait, that is not an STi rebuild. The procedure for this part may be the same but don't try to oversell it dude.

[@rite2beararms]

Derrick Quintal Depends on the year. 05 and 06 legacy, and STI all shared the same shortblock. it's all forged internals and it's the same.

[@joelyboyblue]

Derrick Quintal this is a completely different engine from his other cars, It Is from an STI

[@derrickquintal]

Afraid not, all USDM Stis had a semi-closed deck engine block. Maybe he is using some sti bits here and there but the block and pistons are not sti ones.

[@derrickquintal]

rite2beararms The Sti, usdm at least uses an EJ257 engine starting in 04-present with some minor changes throughout the years. the legacy you are talking about uses the EJ255 slightly different. Subaru started using this engine in 06. The only other vehicle the share mostly sti engine components was the 04 Forester xt. for that single year it used many actual ej257 parts.

[@Dirtcheapdaily]

+Derrick Quintal welcome to KZbin. Lol It's not a 257 case, but it does have 257 internals

[@markbrand5842]

Bring on Part 2!!!!

[@Booki89]

Did you guys measure any clearances for this build ?

[@Dirtcheapdaily]

+Booki yup. That was all done a few years ago. The parts have been sitting in the garage since 2012

[@Ruslan_Subarist]

And why the back cover bolts were welded together? For this, there is a rotary screwdriver for loosening the jagged wedge bolts: kzbin.info/www/bejne/gn_XqGR7nZqdY8k

[@WRXBase]

Some serious engine porn here ...

[@VenturiLife]

Pretty cool..

[@BillyG869]

Did you measure the bore and taper when honing. Did you set end gap on rings. Did you use plastigage on bearings.

[@mrpsd590]

That's how you put a case together.. hyuck

[@luckyred1818]

Too many armchair mechanics out there criticizing. I’m betting it ran just fine until it didn’t, lol

[@hulkmaterial]

This is my kind of engine builds. Sub

[@dirtydogg06]

Faaaark bro get a rubber mallet😬😬

[@inmotion81]

I did mine way different this this I don't like he used all that wd40 should not use any wd40 on it at all.most of this made me grenge .that crank funny looking too the one I got from Subaru was all black

[@abandongravity3650]

in motion where'd he use wd40? That's brake clean.

[@robertbain72]

Open deck pop can

[@HamletSchmatzmaier]

Hahahahha, Metal Hammer....

[@MrJames6891]

The sight of you putting assembly lube on with your bare hands made me cringe.

[@tjlovesrachel]

james PrO why...personally I can think of about 30 other things I saw that were wayyyyyyy more cringeworthy

[@MrJames6891]

@@tjlovesrachel lol, Like?

[@tjlovesrachel]

james PrO the claw hammer on the case....the application of the rtv ... no impact driver use on the cover plate screws... I’d love to know if the block is going to get line honed and the deck milled and resurfaced and same with the heads...

[@MrJames6891]

@@tjlovesrachel I think the yolo method was used

[@tjlovesrachel]

james PrO lolll I think you may be correct... but hey who am I to judge really ... it’s not my engine and I’m not paying him

[@pheonixfps9248]

Poor sti motor 😂😂

[@paull9086]

Great video showing why to never buy a Subaru.