10-31-2021, 02:41 PM
One other thing to think about. On 653 (A CAT C12) there was a idler or tensioner pulley. It’s purpose was to apply a tension to the belt. So in reality there was no alternator adjustment.
When I got the coach, the belt would wobble all over the place. Newell could not figure it out. Fabick Cat in Joplin could not figure it out. But a very young mechanic at the Cat repair place in Birmingham spotted that idler pulley was wrong for this engine.
So…does your engine have an idler pulley? If so, it could be the idler pulley is dead?
Bill
When I got the coach, the belt would wobble all over the place. Newell could not figure it out. Fabick Cat in Joplin could not figure it out. But a very young mechanic at the Cat repair place in Birmingham spotted that idler pulley was wrong for this engine.
So…does your engine have an idler pulley? If so, it could be the idler pulley is dead?
Bill
Bill Johnson
Birmingham, Alabama