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04 and 05 Edges 600s

1K views 6 replies 4 participants last post by  wildthangci 
#1 ·
question, just about time to get to sleds lol, hot here in Toronto, was checking out sleds in storage, make sure everything ok, I think from last season might need some work on the 04 XC, here is my question, when they say refreshed top end, what exactly do they mean? will do the carbs etc, I am only getting 118 compression, so thinking at least new head gaskets? Figure better ask now before the rush after labourday, thanks oh 1 sled 04 600 XC other 05 600 tourer, wondering if the heat would affect the compression in the summer, bloody hot in the shed it was...
 
#4 ·
forgot about that trick with oil, both sleds 4700 miles, XC was abused lol, they start and run fine, I know at end of seaon on XC, hit the throttel top end boggy, but creep it up goes full tilt, I know got some bad gas end of last season figure really gummed up the carbs, had issues with other "Cat' what a mess bad gas made, milky... will post next week try that oil down the cylandars, yes both sides same compression after 9 pulls
 
#5 ·
Refresh the upper end means new pistons and rings. There are really no head gaskets that can cause compression problems.

118 isn't horrible for compression but it does show that there's a bit of wear on the rings. If the sled starts easy and runs ok, I would hold off until it's lower. But if you want maximum performance, you may want to rip into 'er.

If the engines were 700 or 800's, I would definitely suggest new pistons because of the miles, but the 600 engine is a bit longer lasting.

It's always cheaper to replace the pistons before the piston skirt breaks off ;)

If you decide to replace the pistons, make sure to replace the base gaskets. And make sure to drain the antifreeze so none gets into the crankcase when you pull the cylinders. It also doesn't hurt to lightly hone the cylinders to break up the oil glazing and to re-establish the cross-hatching. Nikasil is pretty tough stuff, so a hand held hone won't really remove any of the cylinder wall, but will break up the glaze. That will help with the break-in of the new rings. And when you get it back together, run it to operating temp (heat in the rear heat exchanger) three times, and then re-torque the head and cylinder bolts. I would also use regular oil (Polaris Blue) instead of synthetic on the first tank of oil to help the rings seat. If you use synthetic, the rings will take a LONG time to finally get seated in for best performance.

Good luck! Sounds like a fun summer project :)
 
#6 ·
Thanks for the info guys, tinker around a bit on them see what issues are there, wife owns the XC so she not too much of a hotdogger anymore lol, but I better have those sleds running good, have enough issues on the vintage stuff, but at least only 1 cylander and know how to fix since 1969
 
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