11100 mile (17863km) club - 94 xlt - Snowmobile World : Your #1 Snowmobile Forum

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post #1 of 7 (permalink) Old 01-07-2013, 07:13 AM Thread Starter
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11100 mile (17863km) club - 94 xlt

That's allot of miles!
I'd like an opinion about what to do with the motor... Compression is 100, 100, 98. Should I throw some new rings in or pistons and rings? I'd like to keep the cost down as I want a new sled next year...
And, should I replace the head gasket with a new one?
Thanks for the opinions!!
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post #2 of 7 (permalink) Old 01-07-2013, 10:36 AM
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i had one with that many miles, the bottom end went
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post #3 of 7 (permalink) Old 01-07-2013, 03:12 PM
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With that many miles - a nice complete rebuild would be the way to go. Crank seals, pistons and rings. (as long as the crank / cylinder are in a good shape) You should have trouble-free running machine for the year - WL

'16 Polaris RUSH 800HO
'06 Polaris Fusion 600HO (traded her in)
'05 Polaris Sportsman 400 4x4
'01 Polaris XCR-800 (VF2, clutched, dynoport and cut heads)
'00 Polaris XCR800 (VF2, dynoport pipes, HTG billetheads, clutched)
'99 Polaris XCR800 (shimkit with stock pipes)
'98 XC700 (reprogrammed CDI, powerpak, boost bottle, clutched - 824 version)
'98 XC700 (clutched, VF - 220 version)
'95 XCR600 (PSI heads, pipes and clutched)
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'88 Indy 400 (owned twice)
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Last edited by White Lightning; 01-07-2013 at 03:14 PM.
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post #4 of 7 (permalink) Old 01-07-2013, 03:15 PM
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Pistons and rings, at least. The potential for piston skirt failure is high with that many miles. Definitely replace the head gasket any time the head is removed. It's cheap insurance. Most gaskets don't work the second go around, even if they look fine.

2007 RMK 700, 2008 RMK 600, 1995 AC Prowler 2-up, 1980? AC Cheetah
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post #5 of 7 (permalink) Old 01-08-2013, 02:13 AM
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Yep, probably due for rebuild. Definitely got your moneys worth out of that motor. Personally haven't seen many with that many miles.

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Last edited by polaristech; 01-08-2013 at 02:16 AM.
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post #6 of 7 (permalink) Old 01-16-2013, 05:11 AM Thread Starter
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Thanks guys. I'll put new pistons and rings in.
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post #7 of 7 (permalink) Old 02-01-2013, 01:19 AM
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As long as you have it open, I'd do a crank inspection and, assuming the journals and inside bearings are good, replace the seals, for sure, and outer bearings as needed.

Many times these engines can wear the journals that enclose the outer bearing race. You can make some remedies work, but too much play means replacement time. I intended to re-ring (and piston) my old '97 488 fan when it was around 10,000. I ended up putting it off until it was up to over 13,000. The cylinders were still within wear spec so I didn't oversize, and the pistons showed nothing to indicate stress so I kept them. I ran that engine to over 25,000 before it spit the rings. One piston was beginning to show skirt cracking - but hadn't dropped anything yet. The other piston was still intact in the skirts. Polaris really dropped good fans when they quit those old 340s, 440s, and 488s.

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