Meat-Run Posted September 19, 2014 Share Posted September 19, 2014 I've picked up a 99 Pantera 580EFI with speedo that doesn't work is this a sign of crank bearing gone or going? I know this was the tall tail sign on all the polaris's that I've owned but don't know if AC does the same thing when speedos don't work. Any AC mechanics that can link crank bearings and speedos going out? thxMR Quote Link to comment Share on other sites More sharing options...
Walleyehooker Posted September 19, 2014 Share Posted September 19, 2014 More than likely. Same thing happened to my AC. Look underneath and see if the shaft is off center. Quote Link to comment Share on other sites More sharing options...
Walleyehooker Posted September 19, 2014 Share Posted September 19, 2014 AC speedo goes to the track drive shaft/bearing not the engine crank shaft. Quote Link to comment Share on other sites More sharing options...
Meat-Run Posted September 19, 2014 Author Share Posted September 19, 2014 AC speedo goes to the track drive shaft/bearing not the engine crank shaft. I knew that.... MR Quote Link to comment Share on other sites More sharing options...
Walleyehooker Posted September 19, 2014 Share Posted September 19, 2014 Most people forget to grease this bearing as it is very hard to even see the grease fitting unless you know it is there. I found mine the hard way to and cost me a few hundred in parts as the drive shaft was also damaged and needed to be replaced. Quote Link to comment Share on other sites More sharing options...
MN Mike Posted September 19, 2014 Share Posted September 19, 2014 Often, that grease zerk on the spedo gear assembly on the Arctic Cats is there to lube the gear itself ( and keep the water out ) and not grease the bearing, from what I've seen, those bearings are 100% sealed.When people don't put grease in there, snow / water get's in and corrodes the gear assembly and it locks up and twists off that square key that gets driven from the shaft that drives the track.With that being said, I would definitely check the track drive bearings, my rule was that I changed mine every 5 years whether they needed it or not, saved a lot of headache on the trail or lake. Mike Quote Link to comment Share on other sites More sharing options...
Walleyehooker Posted September 19, 2014 Share Posted September 19, 2014 No gear in mine and the speedo cable just plugs into the end of the shaft. That's why the end breaks off when the bearings start to go and the shaft starts to wobble. The grease fitting is in the cover plate and will push grease to the bearing. My machine is a 98 so maybe new sleds have a different set up. Quote Link to comment Share on other sites More sharing options...
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