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Radiator fan belt
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Thank you, Al! I asked Liberty to make sure I had a complete set, though admittedly I haven’t checked their work. This was the first belt I’ve changed in my life!
Today I took a wire brush to that pulley. It’s better, but not pretty. I’d like to get my engine painted and have them sandblast things like that at that time. It doesn’t seem like it was taken care of by the first owner.
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From experience I have learned if you need generic parts like belts the best place to buy them is NAPA using the fleet discount card.
Some counter guys can’t find their butts with a roadmap meaning if the part is not on their computer they are lost, but in the case of belts bring the old one with you and the belt can be matched. If you only have a 10 groove belt, bring it, but make sure the counter guy knows you want the 12 groove belt. The reason I am not advocating Liberty or Prevost is they may have been the reason in the first place that you got the wrong belt.
Purchasing some parts that Prevost has private labeled with their own dedicated part numbers makes it difficult to buy them from distributors, but with the part in hand the identification becomes much easier. A good example is the Norgren valves.
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Question…How does an angled crack appear on the edge of this pictured belt ? Having been in the parts business and forwarding belts to manufactures under warranty claims… I have a idea.
In 90% of the cases we receive a report denying the claim. Manufactures are looking under a microscope and see a cut, not a rip.
This happens when installers rush to install a belt without taking any consideration when a new belt is damaged using a tool forcing a belt into position.
My guess this might be the case in Karl’s belt. Over time because of tension this microscopic cut belt reached the pictured length.
just my opinion….
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Wow, that’s crazy. I made sure I was only crushing fingers during my installation.
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Or, some road debris, small stone got a ride on the belt. And, take a look at the belts before you start up without any aux air, things are flappng around and maybe the belt got started on the edge of the pulley.
Air up before starting boy’s…
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Don’t bother airing up boys. Those seated buses don’t have aux compressors and they fire up without any aux air pressure.
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Something to keep in mind with the 90° gear box is making sure the pulleys are all running in line, it’s not uncommon to have a bushing wear in the fan drive Assm and have your tensioner be a little off kilt. The pulley on the belt side is also adjustable to bring it in or away from the gear box. Your best bet is to watch the belt and pulleys and make sure that everything is running true. There is also a grease fitting in the frame of the fan drive that needs to be greased periodically so make sure your service guy is aware of it! I’ve seen many of these start to shred belts and jump grooves due to bad bearings/bushings and not running inline with the rest of the pulleys.
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