The easiest way to put a ring on the piston is by using a ring expander as shown.

Honing the cylinders getting ready for the new rings.

When you get your new rings, you will want to check the end clearance of each against the tolerances in your manual.  Place each ring, one at  a time, in the cylinder and use your feeler gages to check the end clearance gap.  On a John Deere B its about .025 to .035 for a compression ring and .020 to .030 for the oil ring.  If you don't have enough end clearance, you can remove some from the ring end thus increasing the gap using a file.  It's a good idea to check each ring to make sure you have been provided the correct size.  In the case of this tractor, based on earlier measurements, I believe that the last person to do a ring job put normal sized rings in and not the .045 oversized rings that were needed.

The easiest way to put a ring on the piston is by using a ring expander as shown above.  With the ring expander you can expand the ring just enough to slip it down over the piston.  One thing you don't want to do is to break the ring.  You will have a hard time buying one ring.

Before installing in the cylinder, rotate the rings so the end gaps do not line up at all.

John Deere B Restoration Story | Initial Evaluation | Clutch Rework | Engine Disassembly | Pistons and Cylinders | Head Restored | Sites by B's New Home | Directory of Recommended Links

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