http://www.snowmobileforum.com
Go Back   Snowmobile Forum: Your #1 Snowmobile Forum > Specific Snowmobile Forums > Polaris Snowmobiles

Please Visit our Site Sponsors

» Site Navigation
» Power Sports Links
»
»

» Sponsors
» Sponsors
Reply
 
LinkBack Thread Tools Display Modes
Old 11-06-2003, 06:22 PM   #1 (permalink)
Registered User
 
Join Date: Oct 2003
Posts: 2
Question for mechanics: Piston pin tolerances

I'm overhauling my '95 Polaris XLT 600 engine and I was wondering about the allowed clearance between the piston pin and piston pin bore. My Clymer manual doesn't have that data, and I can't seem to find it anywhere.
When I stick the pin in one side of the piston and try to jiggle it, I don't feel any radial movement. But when the pin is fully inserted in the bore, it can turn without much resistance.
I measured the pin and bore and the clearance is between .001-.0015

I'm a Rotax aircraft engine mechanic and I work on both 2-strokes and 4-strokes. On the Rotax aircraft 2-strokes, the clearance wear limit is .002, yet I've never seen a pin that could turn as easily as those on my Polaris.

So is my tolerance still good?
Does anyone have the dimensions (new and wear limit) for pin diameter, pin bore diameter and pin/bore clearance for those Polaris pistons?

Thanks!
Rabid Chihuahua is offline   Reply With Quote
Reply



Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Powered by vBadvanced CMPS v3.0 RC2
Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.3.2
Copyright SnowmobileForum.com