PINESMOKER Posted January 13, 2013 Share Posted January 13, 2013 In the middle of gather all the parts to do a head gasket replacement. And I see that they recommend replacing the head bolts. Is that needed or are they just trying to get you to spend more money. Link to comment Share on other sites More sharing options...
monkeyposeur Posted January 13, 2013 Share Posted January 13, 2013 It's your call. Subaru techs reuse them. Others like the peace of mind using new ones. Link to comment Share on other sites More sharing options...
BAC5.2 Posted January 13, 2013 Share Posted January 13, 2013 You CAN reuse the head bolts. But you SHOULD replace them. [URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard Link to comment Share on other sites More sharing options...
subikid90 Posted January 13, 2013 Share Posted January 13, 2013 Replace them! -Subikid90 1997 Legacy GT 5spd & EJ251 w/EJ25D heads ~10.5CR 1998 Legacy GT Limited waiting for EJ22T hybrid swap Link to comment Share on other sites More sharing options...
johnegg Posted January 14, 2013 Share Posted January 14, 2013 reuse them. no, replace them. no, reuse them. no, replace them. oh the drama!!! Link to comment Share on other sites More sharing options...
PINESMOKER Posted January 14, 2013 Author Share Posted January 14, 2013 Tell me about it. Has any one seen one fail, back out or snap on when reassembling. Link to comment Share on other sites More sharing options...
Stasis Posted January 14, 2013 Share Posted January 14, 2013 Replace them with the ones you've used Link to comment Share on other sites More sharing options...
monkeyposeur Posted January 14, 2013 Share Posted January 14, 2013 A guy in the first gen forum (forget who) a while back snapped a head bolt when he replaced his HGs. I bought new head bolts when I did the HGs on my 22T. Link to comment Share on other sites More sharing options...
BAC5.2 Posted January 14, 2013 Share Posted January 14, 2013 Tell me about it. Has any one seen one fail, back out or snap on when reassembling. Yes. [URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard Link to comment Share on other sites More sharing options...
johnegg Posted January 14, 2013 Share Posted January 14, 2013 USUALLY THE HEAD BOLTS SNAP WHEN they are torqued to 122 FT LBS instead of 122 INCH lbs. common mistake. Link to comment Share on other sites More sharing options...
spooln30 Posted January 20, 2013 Share Posted January 20, 2013 Yeah common for an idiot. LOL. The correct toqure spec for ANY bolt is 1/4 pasted stripped. LOL. Link to comment Share on other sites More sharing options...
Zundapp57 Posted January 20, 2013 Share Posted January 20, 2013 I would replace them,My brother in-law lost an engine in another make of car from somone reusing torque to yeild head bolts. one snapped off 3 months after head gasket was replaced. Just my 2 cents. Link to comment Share on other sites More sharing options...
drewbabich Posted November 5, 2013 Share Posted November 5, 2013 Whats the going rate for these bolts? I'm seeing 60 billz a set on ebay... I'm looking at my 180,000 mile car as a total loss after timing belt failure and that its all a big bonus if I get it running again. Therefore I'm leaning towards reusing the bolts. From what I read the 00-04's were reuseable while the 05's and newer are supposed to be replaced. I'll keep ya posted if I snap one off and regret being a cheapskate. Currenlty leaning towards putting my non cheapskate decision making into OEM headgaskets.... but the cheap fel pro's are so tempting on ebay.... But no one recommends anything but OEM so I won't let my cheapskate heart get the best of me. Link to comment Share on other sites More sharing options...
drewbabich Posted November 5, 2013 Share Posted November 5, 2013 oh nevermind. I see them on ebay for 30 for a set of 12 fel pro brand. I think I'll spring for that... But i still hate paying for bolts even if they are only 30 billz for 12 of them. Feels like they are really stickin it to me. Link to comment Share on other sites More sharing options...
drewbabich Posted November 5, 2013 Share Posted November 5, 2013 nevermind again. These guys are saying they are stretch bolts, but they are not torque to yield (the point at which metal deforms) I'm going cheapskate and using my old bolts. I figure used OEM might be better then mysterious quality aftermarket 30 dollar bolts. A subaru mechanic on this site recommend OEM head gasket and thermostat. He says the rest is up to you. http://www.ultimatesubaru.org/forum/topic/117374-ej25-cylinder-head-bolt-replacement-qs/ Link to comment Share on other sites More sharing options...
monkeyposeur Posted November 5, 2013 Share Posted November 5, 2013 I'd get the OEM crank and cam seals, and rear main seal too. They are pretty cheap and some people have had bad luck with other brands. Link to comment Share on other sites More sharing options...
Idaho subaru Posted November 6, 2013 Share Posted November 6, 2013 Replace them with the ones you've used I'm still chuckling..... My vote is for reusing, unless your dealing with a performance engine. That is my plan for the head gasket job I am gathering parts for, non performance, non replacement. As far as costs for subaru gaskets, I found there to be a pretty large discrepancy in prices between dealers. My local dealer wants $49.95 for a head gasket, yet the dealer in Puyallup, WA wants $35.96. I'd save $30 on just those two gaskets, and I think just the savings on one will cover shipping. Then factor in all the savings of the other seals and gaskets, I think the cost of OEM gaskets would be about the same as aftermarket from this dealer, and in reality, probably cheaper, even with shipping. BTW I've seen some dealers charging as much as $70 for a single head gasket! Moral of the story, shop around, all dealers are not created equal. Plus there is a lot to be said for having all your parts come to you, instead of running around town gathering them yourself. Good luck. Link to comment Share on other sites More sharing options...
Stevo F Posted November 6, 2013 Share Posted November 6, 2013 They're only torqued to 122 inch pounds??- my Briggs & Strattons are torqued more than that :-) Link to comment Share on other sites More sharing options...
Omega79 Posted November 7, 2013 Share Posted November 7, 2013 Well, they're torque to yield, it's a PITA like 6 step process. 4 of them get set to that and the center 2 to like 25ft lbs I think, then you have to turn them all 90deg in order then another 90 in order, ends up being a LOT more torque by the time you're done! Link to comment Share on other sites More sharing options...
johnegg Posted November 8, 2013 Share Posted November 8, 2013 the torque sequence is very specific. make sure you know what it is and follow it. and no where in the field service manual does it say to replace the head bolts when you replace the head gasket. it does say to ''use new head gasket'', but it does not say anything about the bolts. the torquing process is all about the head gasket, not the bolts. they are not torque to yield. Link to comment Share on other sites More sharing options...
Omega79 Posted November 9, 2013 Share Posted November 9, 2013 I was under the impression that angle tensioning was torque to yield. The point being that you are tightening the bolts past their elastic state, giving you equal clamping force based on the stretch of each individual bolt? I get the sense I'm confusing or collapsing a theory here? Link to comment Share on other sites More sharing options...
Kennyfvholla Posted November 9, 2013 Share Posted November 9, 2013 The bolts are not torque to yield. I've seen plenty of people crack a block before the threads on these bolts ever flip, and even before they'd strip the threads of the block. I have never replace head bolts, have used head bolts up to three different times on the same motor, and have never had a problem. Like John said, it is all about the process. Get it right and you will not have a problem. Link to comment Share on other sites More sharing options...
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