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Location:
Perth
Registered:
June 2002
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Can Head Bolts Be Reused?
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Thu, 11 December 2003 06:54
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Pulled the head off my 3sgte and I can remember reading somewhere that the headbolts actually stretch by design.
Can I reuse them??
What are they worth to buy new and are Toyota ones good enough??
Cheers
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Location:
Canberra
Registered:
May 2002
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Re: Can Head Bolts Be Reused?
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Thu, 11 December 2003 07:31
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Toyota would recommend that you replace them  
I bought a new set for my 4AGTE from toyota for around $90 a set, then had my head gasket fail after 5 minutes of idling (copper gasket, no o-rings) so the head had to come back off. I replaced the gasket with a factory graphite one, and re-used the bolts, which may not have been the best option, but they have withstood 17-20psi regularly without any head gasket problems. I certainly wouldn't want to torque them down more than twice without replacement though.
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Location:
Perth
Registered:
June 2002
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Re: Can Head Bolts Be Reused?
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Thu, 11 December 2003 08:01
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Thanks for that mate....
| TE72_Turbo wrote on Thu, 11 December 2003 15:31 |
....for around $90 a set, then had my head gasket fail after 5 minutes of idling (copper gasket, no o-rings) so the head had to....
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By this do you mean that with a copper/metal head gasket, o-ringing is needed/essential/preffered??
Cheers
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I supported Toymods
Location:
Ademelaide, SA
Registered:
July 2003
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Re: Can Head Bolts Be Reused?
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Thu, 11 December 2003 08:18
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yes. yes they can.
and toyota dont actually specify. not at my work, anyway...
we re-use headbolts all the time.
toyota headbolts aren't a torque-to-yeild design anyway, so you wont have a problem, just make sure you clean up the threads, with a wire brush, coat them with a little oil, and put some oil under the heads of the bolts, and on the washers, and away you go!!
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Location:
Canberra
Registered:
May 2002
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Re: Can Head Bolts Be Reused?
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Thu, 11 December 2003 11:58
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| Quote: |
By this do you mean that with a copper/metal head gasket, o-ringing is needed/essential/preffered??
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Not essential, but from my experience, definately preferred, even if the head has just had a surface grind to make sure its true.
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