Quote:
Originally Posted by Skippy
........ If they aren't done the valves get tight. Eventually they get to where they don't fully close and bleed off compression resulting in a no start. ......
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MORE IMPORTANT
is that good valve seating against the head is a MAJOR part of cooling the valves.... that time those valves are closed heat is being transferred to the head by conduction.
On the way to ' not fully closed and bleed off compression ' you get less and less force applied to the valves against the head... and you run a HUGE RISK OF BURNING one or more VALVES.....
Keep your valve clearance specs within recommended tolerance ... check them on a regular basis....