Bearing repack

[stomper]

I just did the jackshaft and driveshaft bearing repack that is here on my RX1 http://www.ty4stroke.com/viewtopic.php? ... t+bearings
I can't beleive how easy it was and I am glad I did it. The bearing are still in good condition but they did need a cleaning and new grease. I am mechanicly inclined and I do all my own maintenance and rebuilds on my sleds and atvs so it was realy straight forward, but even for someone that isn't that mechanicaly inclined it would be an easy thing to do for preventative maintenance. It just gives me a peice of mind knowing the condition of the bearings and now I can ride with out worring about them.
Thanks for the great tip ROCKERDAN

 

[Fourcam281]

I did mine too and don't think they would have made it another season if I didn't. They were still in good shape but the bottom one didn't have much grease left in it.

 

[Jeffz]

Just did them on my Brothers Phazer. Saves a lot of money!

 

[NY AttakGT]

Just did them on my Brothers Phazer. Saves a lot of money!

And headaches out on the trail during riding season. Better to do it now in a nice warm garage!

 

[YAMAMISSILE]

Just did mine today. Like they said. . . Very easy to do. . . Even if you are not mechanically inclined.

 

[stomper]

Took me about 20 minutes. For those that are unsure, the secondary clutch bolt gets torqued to 46 ft pounds, on th 03 Rx1 anyways, according to the factory service manual.

 

[kinger]

One thing I learned was to NOT pack it full all around only do about 1/3 to 1/2 way around then spin the assembly to spread it around.

Otherwise you get this:

I validated that from the amsoil site:
"APPLICATION MAINTENANCE
Maintaining a clean work environment is important when equipment greasing is performed. Wipe grease fittings clean prior to injecting grease to prevent contaminant ingestion. Maintain bearing housings one-third to one-half full of grease. Do not over-grease, as excessive heat buildup can result.

 

[Irv]

One thing I learned was to NOT pack it full all around only do about 1/3 to 1/2 way around then spin the assembly to spread it around.

Otherwise you get this:

I validated that from the amsoil site:
"APPLICATION MAINTENANCE
Maintaining a clean work environment is important when equipment greasing is performed. Wipe grease fittings clean prior to injecting grease to prevent contaminant ingestion. Maintain bearing housings one-third to one-half full of grease. Do not over-grease, as excessive heat buildup can result.

Good tip for everyone Kinger, I learned that the hard way years ago, lucky for me it was just an idler wheel.

Not really picking up your pic all that good, hard to tell what is going on, but to me it looks like a lot of damage there, am I correct?

 

[kinger]

Yeah the pict isn't the best no damage just grease EVERYWHERE. Bearing was ok just repacked it like this:

 

[canadianhunter]

I use the grease needle to repack. Just put the needle to one side of each ball, putting the grease between the far seal and the balls. That way the bearing ends up being approx. 1/2 full with grease all the way around.
I even remove the seal and do that on most new idler bearings, they have very little grease. I always use a good synthetic grease.

 

[Irv]

Good thing Kinger, looked nasty imo.

Just curious what kind of grease you use?

I have been using Amsoil water proof/resistant grease for years and it seems to hold up well.
(I also use a needle applicator)

 

[stomper]

Very good point and a good thing you brought it up because I think I may have put to much in. I left a bit of space for the expansion of the grease but I don't 1/3 to 1/2.
Thanks

 

[kinger]

IRv I use this:

http://www.amsoil.com/storefront/glb.aspx

Its important to get this EXACT model because if you look in the specs youll see this:

Low temperature torque, N*m - ASTM D 4693 (-40°C [-40°F]) 0.50 15.5 max

The value of 0.5 n-m to turn when the bearing is frozen means on those COLD mornings when the sled has been sitting outside the hotel the bearing will spin like its summer vs every other grease for wheels and stuff is 15 n-m to turn when froze. I put one in my freezer with this grease and the grease the new idler wheel came with I coudl barely turn the regular one, the one with this grease rotated like nothing happened.

I'm trying it this year hoping for better mpg. My first tank on a cold morning would get 6-7 mpg (supercharged remember) and last tank of the day would get 9-10mpg same conditions. Hoping its the grease that was holding me back but it may be doubtful it will stay at 9-10 all the time. Although in the morning I dont need a brake at ALL between the engine braking and the drag of the sled, in the afternoons it actually rolls up to a stop sign.

 

[Irv]

IRv I use this:

http://www.amsoil.com/storefront/glb.aspx

Its important to get this EXACT model because if you look in the specs youll see this:

Low temperature torque, N*m - ASTM D 4693 (-40°C [-40°F]) 0.50 15.5 max

The value of 0.5 n-m to turn when the bearing is frozen means on those COLD mornings when the sled has been sitting outside the hotel the bearing will spin like its summer vs every other grease for wheels and stuff is 15 n-m to turn when froze. I put one in my freezer with this grease and the grease the new idler wheel came with I coudl barely turn the regular one, the one with this grease rotated like nothing happened.

I'm trying it this year hoping for better mpg. My first tank on a cold morning would get 6-7 mpg (supercharged remember) and last tank of the day would get 9-10mpg same conditions. Hoping its the grease that was holding me back but it may be doubtful it will stay at 9-10 all the time. Although in the morning I dont need a brake at ALL between the engine braking and the drag of the sled, in the afternoons it actually rolls up to a stop sign.

Thanks Kinger, that is some good info!

I looked up the grease I use and my low temp number is 7.5, quite a bit higher than your's!!
Think I will be getting some of the stuff you posted pronto, especially after your freezer test report
Thanks
http://www.amsoil.com/storefront/gwr.aspx

 

[thetruck454]

Its a good thing I read this, I just did my brothers attak and my nytro and I packed the bearings as full as I could get them. looks like I'm going to be opening them back up and taking some grease out...

Also I just used a napa wheel bearing grease.