Ring gap
Jul 26, 2017 | 02:20 PM
#2
Polaris ATV Expert
Retired and loving it!
Retired and loving it!
Joined: Jun 2008
Posts: 24,350
Likes: 44
From: North Texas
Manual shows piston to cylinder clearance between .00118-.00197 (.03mm - .05mm) on average. .0047 is service limit called for.
Ring end gap just shows max allowable range,but normal gap I've found on Polaris replacement piston and ring end gap between .010-.016 in most cases. Depends on if oem or after market piston and rings are used.
"Piston Ring Installed Gap"
Service Limit:
.030(0.75 mm)
If you need a manual.. Sportsman,Scrambler,Outlaw all the same.2002 Polaris Sportsman 90 Service Manual PDF Download
Ring end gap just shows max allowable range,but normal gap I've found on Polaris replacement piston and ring end gap between .010-.016 in most cases. Depends on if oem or after market piston and rings are used.
"Piston Ring Installed Gap"
Service Limit:
.030(0.75 mm)
If you need a manual.. Sportsman,Scrambler,Outlaw all the same.2002 Polaris Sportsman 90 Service Manual PDF Download
Jul 26, 2017 | 06:32 PM
#3
Thread Starter
|
Weekend Warrior
Joined: Jul 2017
Posts: 2
Likes: 0
Rings
They are aftermarket made by Niche Ind. But When I called them they told me they did not know I have to check with the oem specs for my machine. They sent no papers with the product so I am assuming they make them to those specs. Thanks for your help.
Jul 26, 2017 | 06:38 PM
#4
Polaris ATV Expert
Retired and loving it!
Retired and loving it!
Joined: Jun 2008
Posts: 24,350
Likes: 44
From: North Texas
They take a lot of the same info or lack of from the manuals I guess.