Is it necessary to change the cylinder head bolts when replacing the head gasket? Are they strech bolts? Reason being I removed the head to fix a cracked valve and replaced the head gasket, when i started it up i was blowing white smoke, I torqued it down to proper troque and used the proper sequence. I mad sure i didnt nick the gasket when i put the head back on. I also tried tigthening the bolts more with no sucess. can any one advise?

Asked by Apr 28, 2015 at 05:13 PM about the 2003 Honda Odyssey LX

Question type: Maintenance & Repair

Is it necessary to change the cylinder head bolts when replacing the head gasket?
Are they strech bolts? Reason being I removed the head to fix a cracked valve and
replaced the head gasket, when i started it up i was blowing white smoke,  I torqued it
down to proper troque and used the proper sequence. I mad sure i didnt nick the
gasket when i put the head back on. I also tried tigthening the bolts more with no
sucess. can any one advise?

2 Answers

Always use NEW bolts when putting a head on a car. Golden rule. They are not made to stretch but they hold a tremendous amount of pressure keeping the head on and weaken and maybe even stretch

2 of 2 people found this helpful.
66,615

Agree,never use old head bolts,or you may have more heartache then you bargained for.

1 of 1 people found this helpful.

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