Having fitted a Balmar
to my Volvo
MD22L I'm having a significant issue with belt dust despite derating it to about 70A with the belt load manager. The belt is a 9.5mm cogged V belt, and I fitted an unused but old Volvo
belt. The alternator
is a single
foot alternator and the foot is just 1" long which doesn't give it much lateral stability so the belt tension seems to pulling it slightly out of alignment so the alternator axis is no longer parallel to the crank shaft. The resulting misalignment is 1-2mm over the 25cm belt span. How best to fix the issue without spending over £500 on a serpentine belt kit?
What brand of belt would you recommend? I've heard Gates recommended. Any others readily available in the UK?
The crank pulley and water pump
pulley are both 10mm but the alternator pulley is 13mm, I've heard of people using a 13mm belt in that situation. which apparently works even though it sits proud of the smaller pulleys. Any experience with that or advice
on whether to use a 10 or 13mm belt?
There seem to be 2 different cogged v belt sections that are both about 10mm, XPZ, or 3V/3VX. What's the difference and which should I be using? And likewise for 13mm belts there's XPA or AX.
What's the best way to sort out the misalignment of the alternator shaft? I was thinking I'd see if I can shim the alternator mounting bracket where it bolts to the block, but not sure if that will be possible. Any other ideas?
Do I even need to do anything about that? How much misalignment of the belt is acceptable?
I was also considering fitting a belt tensioner like the Balmar
Belt Buddy. Are then any other better or cheaper options.