
paulivan
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Everything posted by paulivan
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Well thats a bummer. All my bolts are the same size though. I found a diagram in chilton that showed 7.0 ft.lbs for all bolts labeled T1 which was all the cam cap bolts. I went and torqued all to 7.0 ftlbs. Maybe I'll tighten up the middle and center a bit or go all the way up to 14 again on these and hope for the best? Thanks for the info.
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Help! I'm putting everything back together after a head gasket change on a 96' 2.5L. Bolting on Camshaft Caps and sheared a couple of bolts. They looked a little bit coroded at the top of the threads so I bought a new set of bolts from Subaru. Now bolting up again I have sheared two of the new bolts (and stripped a couple threads). I am torquing to 14 ft lbs (168 in.lbs.) I checked my torque wrench and it is good. I am now backing off to 10 ft.lbs. Is this o.k? Has anyone else had this problem? What is up with Subaru bolts not withstanding specified torque? Do I have the correct torque spec for these? Thanks, PT
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Could the Chilton manual for 96 Subaru Leg/Outback have an incorrect head bolt torque sequence? I followed the Chilton procedure during H.G. repair. Then looking through USMB found link to factory torque sequence and they are different in that they number the 6 bolds differently. Yet they have same procedure sequence. Which means one of them is not correct! Chilton says: 1 Top Right. 2 Bottom Left. 3 Bottom Right. 4 Top Left. 5 Top Middle 6 Bottom Middle Link from USMB post says: 1 Top Middle 2 Bottom Middle 3 Top Left 4 Bottom Right 5 Top Right 6 Bottom Left Both follow same sequence in procedure text so I won't type that. Which one is correct? If I back off the bolts to retorque will the gasket be damaged? Thanks, PT
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Thanks everyone. I got the bolt out with a craftsman extractor set no problems so did not pull the head. A mechanical engineer friend of mine said the bolts probably started coroding because of steam from a leaking head gasket so maybe my blown gasket was a long time coming. He also said I should not have re-used the head bolts but since it's all bolted up to just carry on and more than likely it will be fine. I'm thinking about playing it safe and changing them out while I still have a chance. Especially since I already torqued them twice now due to an apparent error in the Chilton manual. They give a different numerical sequence than the factory (posting found on USMB) for the same text instructions. I backed off the bolts to change sequence to factory specs. Chilton calls #1 Top R., #2 bottom L., #3 bottom R., #4 top L., #5 top middle , #6 bottom middle. The factory goes: Top Middle, Bottom Middle, Top L., Bottom R., Bottom L., Top R. Could I have damaged the gaskets by using the wrong torque sequence and retuorquing with different sequence? thanks.
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1996 2.5L. When bolting on the cam shaft caps I first stripped one hole before reaching 14.4 lbs. Fixed that no problem with heli coil. Back to bolting cam on again and sheared a bolt in another hole, also felt like I stripped another thread but not sure yet. Has anyone got one of these 6mm bolts out with an easy out? Should I take it to a machine shop or try to get it out myself with the heads bolted? That's my preference but I don't want to do any more damage to this head. Any advice would be appreciated. Inspected all the Cam bolts and found lots of degredation like it was disolving around the upper threads where the bolt hole is not threaded but only on some of the bolts. I found one that had a pin hole going straight through the bolt. Does anyone know why this happens? Is this normal? Would putting sealant around the cam cap mating surfaces help prevent this? And after all this is resolved is it o.k. to reuse the new head gasket that has just been torqued if I have to remove the head for a machinist to get out the sheared bolt? Thanks PT