cummins 6b5.9 alternator failures
My 93 Winnie Vectra on a Spartan chassis with Cummins 5.9 is about to get its 3rd or 4th alternator in 70 kmiles. It had already failed when we bought the rig and the shop that replaced it had to cut...
Forum Discussion
dsr27 wrote:wolfe10 wrote:
Here is a good 30 second video by Gates Corp on checking the automatic belt tensioners.
Agree with you, run it a few miles before trying to diagnose the tensioner.
https://www.youtube.com/watch?v=uTLV5IU_IMM
I had no idea that the tensioner also was a dampner on the Cummins.
thanks
Gary
Yup, tensioners (Cat, Cummins, DD, etc) can fail in one of THREE ways:
Bearings
Tensioner spring
Dampner
BTW, I like Gates tensioners.
Particularly if you have a rear radiator (i.e. labor to install), replace the tensioner when replacing the belt. Only one more bolt to R&R-- the rest of the labor is "included".
