jackamory Posted August 10, 2010 Share Posted August 10, 2010 (edited) hi, my headgaskets gone on my 1.6 zetec and am just wondering whats the maximum i can skim off the head?also will different cams make any difference atall? cheers, jack Edited August 10, 2010 by jackamory Link to comment Share on other sites More sharing options...
Stu Posted August 10, 2010 Share Posted August 10, 2010 The only true way to know is do a dummy build and measure your piston to valve clearance and go from there. Remember if you bump up the CR (which is good) you may need to use super unleaded to avoid pinking. Link to comment Share on other sites More sharing options...
jackamory Posted August 10, 2010 Author Share Posted August 10, 2010 cheers for the reply but how do you mean a dummy build? when i was a mechanic i allways used to use autodata?...super unleaded as in the expensive type of unleaded when you fill up?and sorry whats pinking? cheers, jack Link to comment Share on other sites More sharing options...
Stu Posted August 10, 2010 Share Posted August 10, 2010 If you just want to skim it for the head gasket job, then ask your machine shop to "skim to clean" and you'll be fine. Link to comment Share on other sites More sharing options...
jackamory Posted August 10, 2010 Author Share Posted August 10, 2010 i want to skimm for better CR aswell though seeing as im skimming it anywayand my dads doing it at his work so just wondered if there was any measurements? jack Link to comment Share on other sites More sharing options...
Stu Posted August 10, 2010 Share Posted August 10, 2010 The relevant measurement is piston to bore clearance. Link to comment Share on other sites More sharing options...
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