XP shop manual incorrect

[MURDOCK]

Still having belt issues I recently purchased the shop manual for my 08 XP to get the specs for clutch alignment. First of all I could see the belt was not running true. When looking at the clutches from the front of the sled I could see the motor had to go towards the center of the sled. I measured the offset before modifying any engine mounts and moving it around. I found it to be what the manual says, 37.12mm and about 2mm difference in the front for torque. I measured a known good REV that gets 1000miles out of belts and it was closer to 41mm. Being that both sleds come out with the same belt and the primary clutches are the same dimensions one would assume the sled that is easy on belts would have the correct alignment. Do not know what the REV manual has for specs but I'm sure it is different from the XP manual. Looking down the clutches now looks as it should and seem to run way cooler. I will try to remember my infrared thermometer next ride. What are your thoughts on my findings. Please do not make this a clutching, gearing, belt, etc thread.

 

[cjgodden]

Wether right or wrong the manual states what the BRP engineeres intended the x measurment to be. The 09 one day book says they changed the spec to 36.8 mm with 3mm of offset. My thinking is the change in driven clutch is what prompted the x-y-z measurement change. But You do have a point as a clutch is a clutch is a clutch, if the center to center is the same and the angle of the shive is the same why would x-y-z change that much? interesting question to ponder, I'll have to do some investigative work. Thanks for tickling my brain. I'll see if I can come up with some answer's

 

[MURDOCK]

Anyone else?

 

[triple7]

Imo

I think its funny that people actually except the idiotic notion that skidoo can hang their motor and jackshaft in the sled in such a way that they have to align the clutches with a certain amount of allowed 'twist'!! Common sense tells me that the clutches can only be truly aligned at a certain shift with a certain load when done this way...what a stupid system

 

[rockymking]

Still having belt issues I recently purchased the shop manual for my 08 XP to get the specs for clutch alignment. First of all I could see the belt was not running true. When looking at the clutches from the front of the sled I could see the motor had to go towards the center of the sled. I measured the offset before modifying any engine mounts and moving it around. I found it to be what the manual says, 37.12mm and about 2mm difference in the front for torque. I measured a known good REV that gets 1000miles out of belts and it was closer to 41mm. Being that both sleds come out with the same belt and the primary clutches are the same dimensions one would assume the sled that is easy on belts would have the correct alignment. Do not know what the REV manual has for specs but I'm sure it is different from the XP manual. Looking down the clutches now looks as it should and seem to run way cooler. I will try to remember my infrared thermometer next ride. What are your thoughts on my findings. Please do not make this a clutching, gearing, belt, etc thread.

2007 REV manual specs:

Distance between both pulley shafts, center to center W = 257.5 +/- 0.5mm

Distance between both pulleys Z = 20mm

X = 36.5 - 37.5mm

 

[MURDOCK]

Interesting how these specs don't jive with known good sleds. Are these specs no good too? Can older REVs have slipped by with these specs because there was little problem with them? How is there not much input on this thread with such a huge problem. Triple 7... you don't have a clue.

 

[357454]

Ski Doo Clutch Alignment

I thought I was the only one with a clutch alignment issue, when I rebuilt my 03 I installed it using Doos specs and immediately started losing belts in 200 to 300 miles, (normal life was over 1,000) Last season I took a closer look at the alignment and found the motor needed to move @ .250" to the right when viewed from the riders seat. After the readjustment I completed the season on the same belt. My 06 is about 1/2 way between the specs and what works best for my 03. When I get time I will remove the outer section of the primary clutch and check alignment by using a machined 3/8" bar and a set of dial calipers to determine the proper alignment. I clamp the bar to the secondary, lower it so that it rests on the shaft of the inner sleeve and adding the distance from the secondary sheave to the belt check the difference. For proper alignment all three measurements should be the same minus .020 on the back side of the primary and plus .020 on the front side. I snug the torsion up tight to minimize misalignment under load. I think this is why some are finding success by floating the secondary.

 

[snowcatter]

I think its funny that people actually except the idiotic notion that skidoo can hang their motor and jackshaft in the sled in such a way that they have to align the clutches with a certain amount of allowed 'twist'!! Common sense tells me that the clutches can only be truly aligned at a certain shift with a certain load when done this way...what a stupid system

Unless you have welded your engine block to your chassis, your engine will "twist" under torque as well.

 

[Ancient Sledder]

I'm pretty sure there's a thread on DooTalk about floating the secondary clutch. I don't own an Xp yet, but I'm sure I read it there.

 

[MURDOCK]

Yeah you can by a $700 kit to make it float. 357454 FINNALLY SOMEBODY WITH A CLUE.