Need some quick help: Headbolts

[Yellow 13]

Is it OK to reuse headbolts?

I know it'd be better to go with ARP replacement but I cant afford them now.

Since Im gonna reuse them Im gonna clean the threads on the bolt and block. And then after 60-100 miles retorque them to spec (54 LBS).

Will this work?

 

[MA70Supra88]

http://www.supramania.com/forums/showthread.php?t=13747

 

[jazzsaxman1988]

It should be fine. I would suggest retorquing them greater than spec, however... I know our counterparts with turbos usually retorque them to about 72 ft/lbs... I'm fixing a BHG at the moment, and I can't afford new head bolts either, but for our NA engines it isn't as big of a deal. Good luck!

 

[supramacist]

yellow..., if none of the threads from your bolts are stripped off you should be able to reuse them although I would advise against it. But sometimes you have to do what you have to do. some of the threads were pulled off of mine so I wouldn't attempt to reuse them. However the bolts will give before the block will wich could possibley result into the same situation you have already. Just my opinion and there's a reason it is free.

 

[Yellow 13]

Im gonna stick with the stock specs for torque, maybe go to 58-60. But I dont want to put to much stress on the old bolts/threads.

Im not to worried about the threads I have more bolts from other heads to Mix and match.My cousins being cheap on fixing his car so thats the best I can do for him.

Thanks for the input everyone.

 

[IJ.]

Y13: Go to 75 they should be fine!

(they're actually good quality bolts and as long as they haven't been pulled down to 100 in the past they shouldn't fail)

 

[Yellow 13]

Never been retorqued as far as I know. So 75 on OEM gasket will be ok? the block and head arent getting resurfaced just taking off all the old HG material and putting another on.

 

[IJ.]

Yep should be fine!

 

[fiyota]

the shop that did my hg job torqued them to 55ft/lbs... my head gasket is leaking oil like made down the back of my motor and it's only been a couple weeks since the job was done... do 76ft/lbs.. I'm going to tell them to do it right this time and use ARP bolts and torque them to around 76-80

 

[supramacist]

I agree with Ij ( I can't believe I said that lol) If you are going to reuse those bolts torque them down. you have nothing to lose.

 

[jazzsaxman1988]

You really might as well leave them out if you aren't going to torque it down. You'll just be pulling it off soon again anyways

 

[IJ.]

I guess the bolts at 55 will stop the head falling off the engine while it's NOT being driven :nono: !

 

[jazzsaxman1988]

yeah- but it won't do much more than that.

 

[Yellow 13]

I finished the job early yesterday (Just under 10 hours). Went to 72lbs and drove it for about 100 miles and it held together.

Hes getting a code 25 on and off for running lean. Im thinking the O2 sensor may not be working since it has a pretty bad splice job on the wires and we dont know when it was last changed.