Browning Posted January 26, 2005 Report Share Posted January 26, 2005 Do you feel it is best to change them when the engine is warm or cold? I just had a guy tell me not to change them in this cold weather, unless you warm the block first?? Quote Link to comment Share on other sites More sharing options...
el aguila Posted January 27, 2005 Report Share Posted January 27, 2005 Cold if it is an aluminum head. Quote Link to comment Share on other sites More sharing options...
Guest jpurdy2003 Posted January 27, 2005 Report Share Posted January 27, 2005 Originally posted by el aguila: Cold if it is an aluminum head.And I'm 99% sure that's the case on a 97 Z24 cavalier. And FWIW, growing up my dad taught me to ALWAYS let a car cool down before doing a tune-up, but he has primarily worked with 1960's-era Fords and air-cooled volkswagens so his experience may not translate. But I feel pretty confident saying that if you do the job right, in a garage, and at least 20 minutes after shutting the engine off, nothing bad will happen. Quote Link to comment Share on other sites More sharing options...
street pilot Posted January 28, 2005 Report Share Posted January 28, 2005 you should change them when the engine is cool. That said, I am guessing that person told you not to change them now because it is so cold. When it dips below freezing like this things get brittle. Quote Link to comment Share on other sites More sharing options...
Total Sign Posted January 28, 2005 Report Share Posted January 28, 2005 Dont forget antiseize. Quote Link to comment Share on other sites More sharing options...
Browning Posted January 28, 2005 Author Report Share Posted January 28, 2005 Originally posted by Assured Risk: Dont forget antiseize. ?? Quote Link to comment Share on other sites More sharing options...
Guest doggunracing Posted January 29, 2005 Report Share Posted January 29, 2005 It's a thread paste that stops the plug from sticking in the head. Most part-slingers have them at the counter in little packages. Quote Link to comment Share on other sites More sharing options...
Browning Posted January 29, 2005 Author Report Share Posted January 29, 2005 Never used it, that explains it. Quote Link to comment Share on other sites More sharing options...
gt-titan Posted January 30, 2005 Report Share Posted January 30, 2005 if you have a plug that is seized up in your head,aluminum or cast try to brake it lose when the motor is hot or you might brake the plug or poss damage the threads. and always use antiseize it makes it so much nicer to remove plugs. Quote Link to comment Share on other sites More sharing options...
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