2Tracelab wrote:

Hobbit210 wrote:Looking at the workshop manual it stated that the sevice limit was .43mm and to replace the rings if over this! I was horrified to find that the gap with the NEW rings was .508mm.

Where in the bore did you measured the gap and how did you get such an accurate measurement?

I put the ring into the top of the bore and then pushed it down about an inch with the bre piston to make sure it was level in the bore. I suppose about 15mm above the exhaust port.
I used a Snap-On (accurate to within 3 feet!!!) feeler guage which has imperial and metric. The ring gap with the 'flat blade' of the feeler gauge flat against the bore was 20thou (0.508mm).
I moved the ring up until it was still in the 'working area' near the top of the bore and the gap was virtually the same.

Mike


Mod edit:20 thou is 0.508mm not .0508mm as you had typed
FY
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