Author Topic: Premature Belt Failure  (Read 2737 times)

hotrodr

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Premature Belt Failure
« on: October 12, 2006, 11:22:40 AM »
Hey guys-

This is my first post to this site.  A guy hooked me up with some links to some good sites and this was one of them.  I didn't think these kinds of sites existed until today. whoop!

Anyway, back when I ran my Odyssey (~5 yrs ago), I had a severe belt failure problem.  The belt would fail after every 2-3 hours of riding.  My drive clutch had slight wear (grooves) in it as did my driven pulley.  The driven pulley wasn't near as bad though.  Would a new clutch solve this issue?  What clutch is recommended for weekend use (not all out racing)?  I've been recommended the Comet 94C clutch.  Should I go ahead and replace the drive and driven pulleys just to eliminate risk of more belt failure?
Thx,
  Keith

hotrodr

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Premature Belt Failure
« Reply #1 on: October 18, 2006, 01:25:48 PM »
hmm...
22 view and no one knows how often their belt fails...

FL670R

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Premature Belt Failure
« Reply #2 on: October 18, 2006, 01:59:41 PM »
Quote from: "hotrodr"
hmm...
22 view and no one knows how often their belt fails...


Your belts should last at least 1 to 2 years or more

Stock Belts work / last the longest...

I've run them on everything from a stock 400cc to a 500cc to a 100 HP 670cc and they all last at least a year or better...

A worn clutch face and mis-aligned clutches are the most common reason for premature failure...
The Drive clutch is almost always the root of the problem

The Comet 94C is an excellent replacement clutch for the FL350...

Good Luck

nuke em

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Premature Belt Failure
« Reply #3 on: October 19, 2006, 10:04:32 AM »
First off, Hi and welcome to the board!

   Dennis(FL670) is right on the money. Belts should last at LEAST a year, even if ridden often and hard (got to be a joke in there somewhere, LOL). The factory belts are Mitsubishi and are great belts but a little expensive IMHO. I run Dayco Max belts, 1042(I think), and run them until the wear limits by the book(2-3 years). They are around $35. Save the worn ones as spares on the machine somewhere incase you blow a belt several miles from camp. I have been using a Dayco Ulti-Max2 on my 420CC 350 for about 9 months with no wear issues. The only bad experience I had with a belt was a Gates belt sold as a $14 Napa brand. It blew (shredded) on day 2 at LS Oklahoma.

 As far as clutches, I have never used a 94C but it seems to be about the best bang for the buck replacement. Simple and effective design. I would suggest getting one because it sounds like your drive clutch is worn completely out. You also may want to ask here about clutch alignments if it is still eating belts after the new belt and clutch install.

Any more questions, just ask. I will do my best to help answer them. Its hunting season here in Wyoming so I may be away from the board for several days at a time. Good luck,
Gary

hotrodr

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Premature Belt Failure
« Reply #4 on: October 20, 2006, 11:47:50 AM »
Hey-thanks for the replies guys.  btw, I have an FL250 ('81 or '82), not a 350.  The Comet 94C will still work, I believe.   Thing is, I'm not sure what type of clutch I have on there right now.  It could be aftermarket, but I'm not sure.  
The issue I'm concerned about with the 94C clutch is RPM engagement.  Is it suitable for slow take-offs/putting around as well, or will increased belt wear ensue?  I mean, you don't take off at full throttle all the time, right?  I'm not sure what RPM engagement I have right now.   I do know that my belts fail within 1-2 hours of use, which is very abnormal.
The drive pulley that is on the engine right now doesn't have the hemispherical cap covering the internals like the one I saw in the Clymer manual that I have.  Does this mean that it's possibly an aftermarket one?  I could post pics if that helps to identify it.
Also, if I order a new drive pulley, I was thinking that I might as well order a new drive pulley/parts as well.  Does this seem reasonable?

odypilots

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Premature Belt Failure
« Reply #5 on: October 20, 2006, 02:57:32 PM »
If I remember correctly, you HAVE to replace the driven when you switch to a 94c drive on a 250. Whoever you buy the 94c from should be able to tell you for sure.

This link should help you indentify your present clutch. It has Pilot clutches in it, but it should resemble one of them if yours is aftermarket.

http://p-o-ps.com/pops/viewtopic.php?t=1594
The usual 'my two cents' disclaimer applies. :)

LiveWire

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94C for FL250
« Reply #6 on: October 22, 2006, 07:41:05 AM »
The 94C for the FL250 is set up for an 1 1/4" wide belt instead of the stock 7/8". I sell their kit with the drive, driven and belt for $310 shipped.

hotrodr

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Premature Belt Failure
« Reply #7 on: October 22, 2006, 12:39:19 PM »
odypilots:
thanks man! the clutch that I have looks just like the Powerbloc_ALT photo.  

Livewire:  I'm trying to get my clutch off right now; I have two tools that look like pullers, but it's been so long since I've taken the engine apart, I'm not sure what I'm looking at.  Thanks for leaving me that message yesterday.  I'll get a hold of you shortly and let you know exactly what I need.  Thanks again guys!

Keith