- Thread starter
- #41
motor blown or ceased???
- Thread starter CRFSummit
- Start date
- Thread starter
- #42
What was your RMP at? Im guess that with a 159" track your sled is probably clutched for the mountains? Running wide open at lower elevations for long periods will allow it to over rev.
probably high, and yeah that is probably the case with the clutching and reving...
- Thread starter
- #43
well here it is....good news my pistons and top end are fine...its my bottom end, blew a crank shaft barring so i have to replace the whole crank shaft or get it rebuilt...im getting a newly rebuilt one from rec. supply, so what would have caused that, oil pump maybe?
knee deep in it
Active VIP Member
8 year old sled, those 800's were known to have a finite life span on the crank. Good engine but the cranks can only put up with big power for so long.
Check your carb boots, keep an eye on oil consumption, and check your plugs every now and then. Your new crank should be good for another 8 years.
Check your carb boots, keep an eye on oil consumption, and check your plugs every now and then. Your new crank should be good for another 8 years.
dezmitchell
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well at least your being positive:d:d
tex78
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nope ... depends what bearing went... i'm sure it was the pto outer one and it has iso grease.... they need to be repacked once and a while during the life span of the bearing....
Your sig line says this sled has a "retarded about of mods"? What mods are we talking about here?
Crank bearing failure is not uncommon, how many miles on the sled total? If the inner bearings have oil in them, then the oil pump is not the issue, if its the outer bearing on the PTO side then it probably needed to be re-packed and just burnt out. I've seen this a couple times before.
- Thread starter
- #48
as for mods, bassicly just a pipe and can for the motor...but ALOT of cosmetic mods....
it is the barring on the conection rod on the clutch side, so what does that mean, as for miles well it reads 3500 however previous owner had a light weight hood so no miles to be counted there, and cant be sure of real miles with that hood on!
Cosmetic stuff is not mods, I was speaking in terms of motor mods for reliability. Connecting rod bearing failure is common, had a buddy blow one, his was the MAG side. The cases need to be inspected very carefully and make sure there are no cracks in the lower case half. There is not a lot of clearance once the rod bearing goes, the connecting rod often hits the cass and cracks it. If you have a crack then you will need new cases, both halves.
You can get it welded but sometimes that doesn't work out to well.
greenlightning86
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maxwell
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hope your going to replace the top end also? maybe? good idea maxwell
You mean removing the dealer decal of my sled doesn't make it a mod sled.
No. neither does adding a riser, boondocker box, boss seat or a loud can. LOL
- Thread starter
- #53
define....i am going to put new gaskets clearly...but having a motor guy inpect the pistons and jugs to be sure thought..
Modman, quit hating those are all mods! lol also you sled is not classified as a mod sled with out ice scratchers :d also any thing that requires a minor MODification counts as a MOD hahahaha
maxwell
Active VIP Member
easy guys. i took all the stickers off my 800xp now it will beat any 800 zx or 670 ok
Don't even question it, put new pistons in. What are you paying for a reman crank? I have bought a couple of cranks from CVTech-AAB inc for cylinder and crankshaft rebuilding and replating in Quebec, Canada check them out.
note
Active VIP Member
or buy a creat motor
Ya thats a better idea.
imdoo'n
Active VIP Member
sheeeet. you need to do maintenance once in a while. good luck with the basket case.
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Metalfusion
Active VIP Member
Here is a guy parting out an 04'. See if he still has the motor.
2004 ski doo 800 summit x for parts - Strathcona County Snowmobiles Parts, Trailers, Accessories For Sale - Kijiji Strathcona County Canada.
2004 ski doo 800 summit x for parts - Strathcona County Snowmobiles Parts, Trailers, Accessories For Sale - Kijiji Strathcona County Canada.
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