what kind of grease

[jacobsond]

I think I found a possible cause for my clutch trouble. The grease I am using has a temp range of 0-200F. I think I need a higher temp range for there. with the engine heat and belt heat likely getting over 200F. What kind or temp range are you guys using?

[slonomo]

I don't think you need high temp grease. What part are you putting grease on?

[jacobsond]

Rear sliding sheave. The bushing wore out and jammed on the shaft. It seems like it gets pretty hot back there. A grease with an upper limit of only 200 degrees that I have been using may have contributed to the failure. After i get it going again I will measure temps of the belt after a mile of 3/4 throttle. I bet the temp will be pretty close to 200. At the upper limit of the grease max temp would likely cause the grease to be less effective.

[slonomo]

200 really isn't all that hot, but I'm wondering if you're having belt slippage. A slipping belt will cause extra heat and then it's a chain reaction causing the belt to slip even more.

I've never checked the temp of mine. Under normal load I'm thinking it shouldn't really get that hot. Under load, pulling a trailer, 4 passengers, going uphill, racing...all can cause extra load, things will definitely heat up in a hurry.

[jacobsond]

The grease I was using had spec of 0-200F operating range. I measured the temp after running and I was getting 180-190 on the belt and sliding sheave. The poor quality grease and the worn bushing contributed to the sheave getting stuck on the input shaft. Now I have a new cheap rear sliding sheave a power spring and grease with an operation range of -40-350 degrees. The grease may not have contributed,but a good idea to check what your using. Not just any old cheap grease like I did. My new job as a systems maintenance tech has taught me there is specific stuff for each application. The wrong bearing grease was used here at one point with disastrous results.