Gravely D Piston Ring End Gap

Model D production ceased long before 59. Maybe your tractor is a Model L. New pistons and rings are still available from GT Gravely Parts and Richards.

gravely_n_fla said:

Model D production ceased long before 59. Maybe your tractor is a Model L. New pistons and rings are still available from GT Gravely Parts and Richards.

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This is a English Gravely D made in Devon, England. Based on the original American model with some improvements.

You could check gravelymanuals.com. There are a couple of English D model manuals there, but a quick glance through one didn't reveal anything like ring gap specs.

It does specify the bore, so you can mic what you have. . .

IIRC Fla_Don knows a lot about these machines. Maybe he'll happen along here with more information.

Here's a link to my Gravely D before i started work on her in August 2019. 1959 Gravely D Pictures