Posted by Farmall Bob on October 25, 2020 at 15:44:51 from (67.253.100.57):
Hi all,
Up-date on my Gravely L8 Convertible. Have it all torn down again, jug off, measured ring gap. Top ring .026, middle ring .077, bottom ring .062. Removed the carbon at top of cylinder, and need to order valve spring compressor to lap valves again as found some small carbon build up on seat. Probably good reason for not having good compression even through being lapped the first time? Did reset timing as reading manual numerous time found that setting line to dot at TDC can be misleading as we need to be going on the down stroke and not at the very top. Carburetor is being rebuilt with some new hardware. Do understand that these machines are very forgiving as for tolerances, but if you are used to working with tenths and millionths in calibrations, we maybe a bit too critical?
Your commits are always welcome and are of the most importance to me. Thank you!
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