My piggybank just bought a ticket to Melbourne for Sept. Serpentine (I kind of need to know what accessories I want to run?) and fuel injection will have to wait a bit.
I did find a water pump pulley in my Buick stash. Smaller diameter (should drive the water pump impeller faster making cooling even betterer?) and two groove (part of my upcoming power steering project).
Lame..
The LS2 now living in my Rambler came with fuel injection AND a serpentine setup.. Just sayin...... Seems like the ideal fix for both issues...lol
Im not sure why but my buddy killed 2 pulleys like that on a Pontiac 400.
We decided that the pulleys were just a little to thin of metal and the slight mis-alignment or maybe the stock pulleys had a slight wobble and that was eventually slightly flexing it back and fourth till it cracked.
Anyway,
I had a stack of water pump pulley spacers on the shelf so I took the thickest one (about .125) and tigged it to the face of the cracked pulley, the second one just had a little crack and hadn't completely failed like yours did, He never had another issue. I would bet just buying a chrome cheapie pulley would have solved it just as good though, probably made out of thicker chinesium material than the factory used.
