Yesterday, 07:45 AM
(This post was last modified: Yesterday, 07:46 AM by Hugh Barnes.)
And use the rule of 9 (or 8 depending on your definition) when checking any given valve. I can do no better than to quote from t'internet:
When number 8 valve is raised (meaning the engine is at the top dead center for that cylinder), it's generally recommended to check the valve clearance of number 1 valve. This is based on the "Rule of Nine" or "Rule of Eight," which states that when one valve is fully open, you should check and adjust the clearance of the valve whose number, when added to the open valve's number, equals nine (or eight)..
hth...
When number 8 valve is raised (meaning the engine is at the top dead center for that cylinder), it's generally recommended to check the valve clearance of number 1 valve. This is based on the "Rule of Nine" or "Rule of Eight," which states that when one valve is fully open, you should check and adjust the clearance of the valve whose number, when added to the open valve's number, equals nine (or eight)..
hth...