31-10-12, 12:06 PM
Thanks, that was some very comprehensive and informative posts guys! So the exhaust I think is fine as I only have a 0.2mm feeler so can't measure the exact 0.21mm minimum clearance, however 0.2mm went easily with very low drag and 0.25mm wouldn't fit so I'd say exhaust are around the 2.1mm tolerance.
Intake on the other hand, most of them measure 0.004" which is 0.1016mm so that should be fine. Unfortunately one of the intake valves measured 0.003" which is 0.0762mm so that probably does need swapping by the sound of it!
I am not entirely surprised that the clearances would get tighter as you say Major Rant, surely the head would wear faster than the oiled cam/bucket assembly? I think that I will have to stick to the manual on this one and pop in some new shims to be on the safe side!
Intake on the other hand, most of them measure 0.004" which is 0.1016mm so that should be fine. Unfortunately one of the intake valves measured 0.003" which is 0.0762mm so that probably does need swapping by the sound of it!
I am not entirely surprised that the clearances would get tighter as you say Major Rant, surely the head would wear faster than the oiled cam/bucket assembly? I think that I will have to stick to the manual on this one and pop in some new shims to be on the safe side!