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post #1 of 28 Old 09-29-2010, 10:17 AM Thread Starter
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So im thinking about doing my drive shaft and jack shaft bearing myself. I cosider myself mechanicaly inclinded and like solving problems. I just bought my 2000 zr this summer and it is my first sled. I've never worked on snowmobiles and not really sure how to change out these bearings. I dont even know what im looking for really. As some of you might have noticed i've been looking around for a service manual and have only come across the one on this forum. I was hoping to find something more step by step. I guess my question is: can anyone walk me though this roughly or has there been a walk through with pictures made by someone on here. Any help would be greatly appreciated.

Thanks in advance
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post #2 of 28 Old 09-29-2010, 11:04 AM
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I grabbed a service manual for my '02 from the site below. Has worked well for me. Looks like they have the 2000 as a zip file as well.

http://chadt.us/manuals/index.php?option=c...7&Itemid=57
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post #3 of 28 Old 09-29-2010, 11:50 AM
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once you have the manual for guidance...the bearings are pretty easy..

you can do it. just a takes time. first time i'd plan on 3 hours or so...you'll get faster each time you do it.
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post #4 of 28 Old 09-29-2010, 02:47 PM Thread Starter
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This might sound dumb, but were are the bearings? I know there for the drive shaft and jack shaft, but were are they located. What do I all need to take apart to get to them?
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post #5 of 28 Old 09-29-2010, 03:11 PM
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in a nutshell they are on either end of the driveshaft.
in a nutshell here's the steps

-open the chaincase
-remove the 3 nuts/carrage bolts that hold the bearing and bearing flanges to the chaincase side.
-remove the 3 nuts/bolts at the speedometer adaptor (other side of the driveshaft). There are flanges on that end that sandwich the bearings.
- speedo side bearing has a locking collar on it.
- probably need a bearing puller to get the chaincase side off the shaft.

might be something posted up top of this section on bearing removal... a manual will clear it all up
step by step
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post #6 of 28 Old 09-29-2010, 03:12 PM
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we do my bearings using a buddy's car lift. strap the sled to it, can stand under the sled to get at things on the tunnel side more easily.
2 people make easy work of shaft/flange/bolt replacement too.

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post #7 of 28 Old 09-29-2010, 05:38 PM
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Read the two pinned topics at the top f the first pageon rear skid removal and rear skid install. They have pretty good step by step directions for the whole thing. If you have a digital camera take pics of the chaincase and gears once you get the cover off. As far as the jack shaft bearings they usually last waaaayyyy longer than the drive shaft bearings and are a lot harder to change. I would wait till you get the chaincase apart and then take the belt off and turn the secondary clutch and see if you hear and noise in the bearings or any movement in the bearings before you just tear into it. I have a 93 cougar with about 6000 miles and I don't know for sure but I would bet the jack shaft bearings are still original.
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post #8 of 28 Old 09-29-2010, 07:58 PM
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x2 on the jackshaft bearings....

my 95 Wildcat has over 7000 miles on it, recently replaced the clutch side bearing as I broke the bracket for it...the bearing I took out was fine.

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post #9 of 28 Old 09-29-2010, 09:15 PM Thread Starter
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Ok so I pull out the skid and then I open up the chain case. Am I pulling out the shaft than or what? Maybe im over thinking this and should just tare into it.
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post #10 of 28 Old 09-30-2010, 07:35 AM
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Once all the bolts are off, slide the drive shaft towards\through the chain case and the clutch side should drop out the bottom. Then, pull it out! I'll be doing this for the first time next weekend, so i've been searching old posts on here. Do a search in the bottom left of the forum for bearings.

If I remember, I'll take some pictures and do a write up when I'm done, since there seem to be a lot of questions on this.
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