Well, Now I've gone and done it.

 

Was torquing down my heads on my EA82T. Got to the final TQ stage (47ft/lbs). Damn headbolt stripped. Ripped the threads right out of the block. Am I screwed? Do I just toss this block in the dumpster and hunt down another one?I'm so friggin irritated right now. This motor was supposed to be done and in this weekend.

 

 

Also, is it worth using that gasket again, ir is it screwed too?

i think me, you , and tex get the award for "WORST LUCK WITH AN EA82T"!!

I hates when that happens!!

 

That is one place on an engine, where I would use a Heli-coil for repair. 'Specially on a known good, or rebuilt engine.

 

I'll catch some flack on this, but......

 

You'll be okay to re-use the gasket. Hasn't been on, or under torque load, for that long. I have done so in the past with no ill effects. But final choice on that is up to you.

I second the helicoil idea.

 

No flack to Tom, but I would get another gasket just because:

A. The extra cost is worth the extra peace of mind.

B. It's a turbo

-Louis-

'91 Loyale 4wd 5spd Wagon

'04 Forester XT 5spd

Thanks guys,

 

Any suggestions on where to get a helicoil kit for a good price.. and what size I may need.. Oh and can you buy extra inserts seperately..just in cae

11x1.25 pitch

Is that really the head both thread? My engineering charts dont even show that one.

 

Gary

I found 11x 1.25 inserts… in the UK.

 

http://www.toolsnextday.ltd.uk/Helicoil_Kits/helicoil_kits.htm

I checked a few more charts and catalogs... found taps in the MSC catalog but no inserts.

Gary

we used to do something a bit different, it has been a while (10 yrs) so I do not remember much of it. I do remember it DID work with no come backs. Here goes: when we found a head bolt stripped we found we could use a standard thread bolt just slightly larger than the metric bolt. we would drill out the hole and retap for the new threads. I think we used grade 8 bolts.

 

 

I do not think any other problems were encountered. It is what I will do if I come accross a bad head bolt as you mentioned. Just a thought.

When this happened to me, I just drilled out the hole and retapped it to 1/2"-20, which is a fine thread 1/2" bolt, fairly similar to the factory one but a little bigger. You also have to run a 1/2" drill through the hole in the head. I reused the Subaru washer, but drilled it out too to 1/2".

 

If it's already in the car, then I think I'd start cursing loudly....

X35 THAT was it. thanks for the memory. Did you use grade eight or grade five?

I can't remember that either.

Grade 5 bolt would be the proper choice here.

 

Grade 8 is for Mega-torque applications, which you ain't doing in aluminum.

 

Have to remember the 1/2"-20 tapping trick myself, just incase the inevitable happens to me.

Caleb, be careful trying to follow the angle of the existing hole when drilling it out.

 

I went through this experience and tried to let the drill follow the existing holes by hand- I had 3 holes to do and thus ended up w/3 studs off at different angles.

 

I used 7/16" threaded rod, did not have to open the washers.

 

Wish you the best luck.

if you decide to use inserts,I think E-lok thread fasteners are far superior to heli's..if you put them in correctly,they will never pull out...http://www.allamericanproducts.com/toolng/e-zlok.htm

Well, Now I've gone and done it.

 

Was torquing down my heads on my EA82T. Got to the final TQ stage (47ft/lbs). Damn headbolt stripped. Ripped the threads right out of the block. Am I screwed? Do I just toss this block in the dumpster and hunt down another one?I'm so friggin irritated right now. This motor was supposed to be done and in this weekend.

 

 

Also, is it worth using that gasket again, ir is it screwed too?

so what ever happened here?

I need an insert and cannot locate the 11 x 1.25

if I cannot find it I will need to go with a 7/16 fine thread. as that is the closest size in standard to 11mm.

 

edit: Caleb found inserts from http://www.timesert.com

thanks

I hates when that happens!!

 

That is one place on an engine, where I would use a Heli-coil for repair. 'Specially on a known good, or rebuilt engine.

 

I'll catch some flack on this, but......

 

You'll be okay to re-use the gasket. Hasn't been on, or under torque load, for that long. I have done so in the past with no ill effects. But final choice on that is up to you.

 

Exactly what I have done in the past. As a matter of fact, I had to do 5 on one engine before. Still holding today without problems.

 

OMG, I have fallen prey to the resurrected post. Nooooooooooooooooooooooooo!

 

J/K, To answer the last question. I have had good luck finding inserts/kits at NAPA and National auto parts.

Never mind. i didn't read to the end before commenting.

I had to repair 2 on an EA-81. NAPA had the correct HeliCoil for the job. Just be careful drilling and tapping for the insert... Not too hard of a job if you take your time. Don't rush it, and get a new head gasket. I re-used a head gasket once, and it bit me... I know a guy that re-used a head gasket last year on his EA-81 in a boat. He started blowing exhaust gas into his coolant about 8 miles back in the marsh... Not fun spending a night in the marsh...

Hey Caleb,

 

I'm sorry to hear about your engine woes. If you call my friend Jason's cell phone, he can tell you where there is a carbed EA82, well that is if you really want to make the trip to Wichita Falls to get it. But when we saw it, it appeared to be in good condition, but appearance can only tell you so much. Just a thought in case you want to get another, and can't locate one in your area.

 

Patrick

Hey Caleb,

 

I'm sorry to hear about your engine woes. If you call my friend Jason's cell phone, he can tell you where there is a carbed EA82, well that is if you really want to make the trip to Wichita Falls to get it. But when we saw it, it appeared to be in good condition, but appearance can only tell you so much. Just a thought in case you want to get another, and can't locate one in your area.

 

Patrick

 

Thanks Buddy!

 

Forgot about this thread.. Since it came up last, I redrilled all 18 holes to fit 11x1.25x28 carbon steel inserts.. These things rock.. I probably won't do another EA motor without them

 

Teh wagon kicks rump roast now:D

Teh wagon kicks rump roast now:D

 

SWEET!!! Would you be willing to take me for a spin in it the next time I'm home? It would be cool to see what a hooked up Subaru Wagon is supposed to feel like!

 

Patrick

SWEET!!! Would you be willing to take me for a spin in it the next time I'm home? It would be cool to see what a hooked up Subaru Wagon is supposed to feel like!

 

Patrick

 

If I haven't blown it up and/or torn it back down by then, we'll definitely go for a ride.

Thanks Buddy!

 

Forgot about this thread.. Since it came up last, I redrilled all 18 holes to fit 11x1.25x28 carbon steel inserts.. These things rock.. I probably won't do another EA motor without them

 

Teh wagon kicks rump roast now:D

 

 

what brand inserts did you use? YOu might have already said in yonder thread but Im tired and headed to school!

what brand inserts did you use? YOu might have already said in yonder thread but Im tired and headed to school!

 

Timesert as stated earlier.

 

I just finished installing all 18 of mine. it takes some patience because there are 4 steps to complete each hole. they fit great and should be much stronger than the stock threads. I am verry happy with the results as of now. I am building this motor on a low budget but I would hazard to guess that if someone were to get inserts sized at 7/16" then getting ARP head studs should be possible as well.

just a thought for you big motor builders.