I apparently was one of the first kids on the block to buy the March billet alum. brackets for the alternator and PS pump for an RB engine. I already had the pulleys, so I added to my investment. Unfortunately, they failed to mention that they don't work with A/C on the car (since corrected and now mentioned) or with Mopar aluminum water pumps or with aftermarket heads. Had I known in advance, my purchase would have been different. Instead I'm left with trying to make these beautiful POS's work.
They're too thick and required numerous mods to work, even without A/C. The only two pulleys that line up properly are the water pump and crank. Even though the Alt. bracket is a stand-alone piece, it still doesn't line-up using the offset spacers provided and the corner had to be rounded because it hit a bolt on the W/P. The bracket is so thick that I could use a feeler gauge to measure the gap left between the belt and stationary objects. The PS pump bracket is too thick to accomodate the A/C bracket without extensive modification and actually rubs the W/P belt. It's not square peg in a round hole, but it's close.
My question is this. Does anyone know what the acceptable amount of offset is for a belt between pulleys, say 1/8"/foot or something like that and how close can the belt get to a stationary object. I can almost get everything to line up, but not quite and I've got some seriously close clearances. I don't want to be throwing belts into my newly repainted hood at 6000 rpm's.
Thanks in advance.
