Alternator Bracket Problem...Need Help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Gramp'sGold70K20 · 07-15-2005, 10:55 PM

When I installed a new GM 350 Crate engine along with new water pump and alternator I used the old bracket for the alternaor. It looked like the belt wasn't aligned so I spaced it with a couple of washers and used new grade8 bolts. Alignment looked perfect and couldn't detect any vibration. Unfortunately, the lower bolt sheered off in the block. The bracket dropped down and the alternator sliced my powersteering hose. All this happened when I was going about 65m.p.h. getting on the highway. It wasn't a pretty sight. The other belts seem to line up just fine. What have I overlooked and what is a good method to ensure the belts are aligned properly? Is it my new alternator causing the problem? My old Bracket? Where do I start?

07-15-2005, 10:55 PM	#1
Gramp'sGold70K20 New Join Date: Feb 2005 Location: Northville, MI Posts: 38	Alternator Bracket Problem...Need Help When I installed a new GM 350 Crate engine along with new water pump and alternator I used the old bracket for the alternaor. It looked like the belt wasn't aligned so I spaced it with a couple of washers and used new grade8 bolts. Alignment looked perfect and couldn't detect any vibration. Unfortunately, the lower bolt sheered off in the block. The bracket dropped down and the alternator sliced my powersteering hose. All this happened when I was going about 65m.p.h. getting on the highway. It wasn't a pretty sight. The other belts seem to line up just fine. What have I overlooked and what is a good method to ensure the belts are aligned properly? Is it my new alternator causing the problem? My old Bracket? Where do I start?



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