Re: pistons
[ View Follow Ups ] [ Post Followup ] [ Return to Tractor Talk ]
Posted by Paul Fox on October 12, 1998 at 03:55:46:
In Reply to: pistons posted by Bob Almstrom on October 12, 1998 at 02:50:27:
: I would like to rebore my engine just to clean up any tolerance, then replace with new pistons. If I do this does it mean that the size of the pistons will stay the same or do I have to go to a larger size? what determines or what is the tolerance that I go by? do the rings take up the tolerance if there is a small tolerance change of may be .005 on the diam.? Is the explained it a manual? Thanks! any help would be appreciated. Bob Bob: There are a couple of variables here. Many tractor engines use sleeves, which are frequently (If not always, I'm not sure) non-boreable. If the sleeve is out of tolerance, you replace the sleeve, piston and rings as an assembly. If your cylinders are the boreable type, it depends on how much you have to bore them to get them round again. Fairly often, they'll be a couple thousandths out at the top, and 10 or 15 out at the bottom. You have to bore them enough to get them round at the bottom. In some cases, a couple of thousandths CAN be taken up by the rings, as long as the end gap stays within tolerance. Hope this helps.
Follow Ups:
Post a Followup
|
