Jump to content
Ultimate Subaru Message Board

Recommended Posts

92 Loyale with 187K. 2WD.

 

Is there a way to guess if this is just a blown Head Gasket or a cracked head?

 

The car has been losing coolant for a couple of years.  Now the temperature started rising. I introduced compressed air in all the cylinders at TDC.  At the cylinder #2 the coolant started leaking from the radiator.

 

I am a fairly conservative driver, drive around the town and do not rev the engine. 

 

What do you guys think?

 

Regard,

Sam

Share this post


Link to post
Share on other sites

Most likely head gasket.

 

By this age and milage kind of due. Also, any over normal temperature while low on coolant leads to and accelerates the failure.

Share this post


Link to post
Share on other sites

Most likely head gasket.

 

By this age and milage kind of due. Also, any over normal temperature while low on coolant leads to and accelerates the failure.

Thank you Dave.

 

I am still debating whether to do the HG job or just dump it.

 

I will see how much the junk yard will give me for it.

 

Thanks,

Sam

Share this post


Link to post
Share on other sites

Probably just the headgasket from the brief info you told us. A nonturbo daily driver that isn’t significantly overheated and has head issues is almost always just a headgasket. I know it happens but I’ve never seen a non turbo crack a head.

 

You can drop the exhaust manifold and look for coolant up in the exhaust ports of the heads. EA82s crack through the water jacket and into the exhaust where you’ll see coolant in the exhaust ports of the heads.

 

When you drop the manifold pressurize the cylinder again and look into the exhaust ports.

Edited by idosubaru

Share this post


Link to post
Share on other sites

They’re actually pretty easy to do in the vehicle. I wouldn’t even think about pulling an EA82 for just a headgasket, they’re too easy.

 

Remove two lower 14mm engine mount nuts and top mounts and jack the side of the engine up that you’re working on. Plenty of room and if you have electric or air tools you can get all the bolts out easy. You can have the head off before you’d ever have the engine out.

 

Swap on another head or resurface that one with a new gasket and call it good.

Share this post


Link to post
Share on other sites

All the heads crack on these rigs on almost every aluminum head ive ever pulled had some kind of crack but very rearly they do they ever crack through unless its a turdbo head gaskets are cheap get some sand paper and have at its its all very easy ive changed a head gasket in a half hour on this rig the hardest part about th3 hole job is geting rid of those stupid timing belt covers

Share this post


Link to post
Share on other sites

Another tip to make it easier.. run it or use heaters to get the entire engine to normal operating temperature, and then carefully loosen all the bolts. Intake are notorious for being stuck and snapping if you try to do it cold. Hot block also helps with head bolts.

Share this post


Link to post
Share on other sites

Thanks for the encouragement.  I will probably take on this job if I cannot get rid of the car :)

 

Any recommendations on the decent HG brand?

 

Sam 

Share this post


Link to post
Share on other sites

Felpro permatorque for gaskets. Use only Subaru intake Manifold gaskets and cam tower o rings. Easy job make sure engine is warmed up to avoid breaking bolts like I did

Share this post


Link to post
Share on other sites

I would use Subaru headsgasket but I have used Fel Pros before on those engines. I haven’t done enough engines or miles to know if it matters.

 

Subaru for intake manifold for sure.

 

Cam tower orings - are metal reinforced, get them from Subaru as well.

  • Like 1

Share this post


Link to post
Share on other sites

Best part of felpro permatorque is no need for retorque. I'd replace all the head bolts. They are $2.40 a piece. For less than $44 it's good insurance to make sure a head does not lift. Also if you do the headbolts, grind slots in an old bolt to make a thread chaser. Finding a thread chaser is next to impossible for a Subaru thread

  • Like 1

Share this post


Link to post
Share on other sites

I’ve almost always used Fel Pros in the past as well for the same reason. I’ve heard others shy away from them though not sure why and maybe failures cracked abuses or sloppily installed. I wouldn’t hesitate to use them again, I even have a set in my garage. Lol.

Share this post


Link to post
Share on other sites

Dont use the v1 copper gaskets they dident hold for snot v2 will be multi layered ringed gaskets kinda pointless if you ask me though these engines arent strongenuff to need a head gasket like that thats why im the only one that makes them the felpro are very good gaekets just thick

Share this post


Link to post
Share on other sites

Thanks.

 

I am still not sure if I want to do it.

 

Did not realize that I have to spend extra for cleaning/milling the heads.  I am pretty sure that if I do it myself I will kill the good heads.

 

Sam

Share this post


Link to post
Share on other sites

 

 

you can have the head off before you’d ever have the engine out.

 

 

 

that's crazy.

 

No way.  All the same stuff has to be unbolted.  

 

Alt, PS pump, AC if it has it, gotta pull exhaust, intake, EGR pipe on pass side head, etc.......

 

for 4 more bolts you can pull the engine.  Put it on a stand, and securely and easily work on the whole engine all around.

 

Engine pull takes 45 mins.  Getting all that stuff off and then getting one of the heads off......an hour an half at least.

 

I don't ever do HGs in car.  Too important of a job to have the partial access for inspection, cleaning, and careful reassembly.

Edited by Gloyale

Share this post


Link to post
Share on other sites

I always redo an engine, them swap it in. Much better access to everything with the engine on a stand. But I have spares and the space. I did them in car once.

Share this post


Link to post
Share on other sites

Engine pull takes 45 mins. 

 

well i agree to an extent. 

 

it's not just removing 4 more bolts - it's 4 more bell housing bolts and the starter, engine mount nuts, (one additional lower front mount for XT6's), torque converter bolts if equipped, and setting up the engine hoist, chain lengths/load leveler, and separating.  all that is extra work, equipment and time. 

 

I do agree - it's easier in some ways and i typically pull, but then again I don't do EA/ER stuff any more since it's all rusted away out here.  but if i had some compelling reason like some people do, no space, no lift, etc -  i wouldn't hesitate to do it without an engine lift either. 

 

i guess if i did it more often and came up with a consistent set up i could pull it off in an hour or less, but it just never happens - setting up the stand, chain length/leveler, supporting the trans and hoping the lower nuts and engine mount nuts aren't rusty, etc. 

Share this post


Link to post
Share on other sites

The 4" lift makes life alot easyer i just pull the intake and one side of the exhaust and i think there are 2 accesory bolts then pull the lift block i have littleraly had the old head gasket off and a new one on and running in 30 min but i knew my heads were straight and my intake gaskets are all reusable except the headgasket and there werent any bolt issues i was kinda undernthe gun so went as fast as i could

Share this post


Link to post
Share on other sites

At one point i was making my own headgaskets and experamenting with them so i pulled my heads about 15 times in a row

Share this post


Link to post
Share on other sites

IgoSubaru Hgs every time, as I found upon retorque, they never take it. Subaru workshop tells me they never have cars back for retorque, they slap 'em on, start em up, drive 'em out

Edited by jono

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×