Pulleys Unaligned Rocket 350
July 6th, 2018, 01:55 PM
#1
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Pulleys Unaligned Rocket 350
I know there’s a lot of posts out there about this but I can’t find a solution for mine yet. I have a 68-70 block, serial # 395558 2. I was told there are 2 different styles of power steering and alternator brackets, can anyone tell me which brackets I need? The brackets I have are causing the P/S pump to sit back from the water pump pulley about 1-1.5 cm. My P/S belt shredded and alternator one snapped because of this. I have both spacers on the P/S pump, and don’t know of any that I need on the alternator. Thanks for the help.
July 6th, 2018, 04:42 PM
#2
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Most of the time it's the mismatch of the water pump (there are three different heights) and the pulleys that go with it, not the alternator or PS brackets. Do you have AC? That makes a difference. There are a ton of posts on getting the right pulley set up. See if this one might help you, or do a search on "correct pulleys" and I bet you find something you need.
https://classicoldsmobile.com/forums...e-pulleys.html
https://classicoldsmobile.com/forums...e-pulleys.html
July 6th, 2018, 05:12 PM
#3
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This won't help you any other than correcting minor mis-information, but that block number was used from 68-76.
July 6th, 2018, 05:44 PM
#4
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Most of the time it's the mismatch of the water pump (there are three different heights) and the pulleys that go with it, not the alternator or PS brackets. Do you have AC? That makes a difference. There are a ton of posts on getting the right pulley set up. See if this one might help you, or do a search on "correct pulleys" and I bet you find something you need.
https://classicoldsmobile.com/forums...e-pulleys.html
https://classicoldsmobile.com/forums...e-pulleys.html
July 6th, 2018, 05:44 PM
#5
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i have AC but I still have the 3 groove water pump and crankshaft pulleys in there cuz that’s what came with the car and I didn’t have a problem at first. Thanks for the post but I don’t know if it would apply here I don’t have the W2 block. I can’t find any serial number on my P/S pump, can’t see it on my water pump without taking it off (which is not an option rn because I need the car for a race in a couple days and don’t have a spare water pump) and the alternator serial number I got doesn’t get me any results online.
July 8th, 2018, 12:55 PM
#9
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July 8th, 2018, 05:20 PM
#11
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I'm not very familiar with 350 set-ups but you should be able to use all pulleys and brackets from one engine be it a 350 or 455 for your needs. I am having a hard time telling what exactly you have going on there. The alt bracket may be a mis-match?
Hopefully these pics will help you out some. These are from a 455 I have sitting in the shop. But they are the same pulleys & brackets that you should have for yours, H/D cooling or A/C set-up with the longer snout water pump.
Hopefully these pics will help you out some. These are from a 455 I have sitting in the shop. But they are the same pulleys & brackets that you should have for yours, H/D cooling or A/C set-up with the longer snout water pump.
July 9th, 2018, 05:13 AM
#12
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I'm not very familiar with 350 set-ups but you should be able to use all pulleys and brackets from one engine be it a 350 or 455 for your needs. I am having a hard time telling what exactly you have going on there. The alt bracket may be a mis-match?
Hopefully these pics will help you out some. These are from a 455 I have sitting in the shop. But they are the same pulleys & brackets that you should have for yours, H/D cooling or A/C set-up with the longer snout water pump.
Hopefully these pics will help you out some. These are from a 455 I have sitting in the shop. But they are the same pulleys & brackets that you should have for yours, H/D cooling or A/C set-up with the longer snout water pump.
July 9th, 2018, 05:18 AM
#13
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Actually the side of the P/S pump pulley wheel closest to us (from the picture) is lined up evenly with the water pump pulley, and the far side of the P/S wheel is too far in, it’s hard to see from the picture but I can confirm this because I’ve taken a level and measured from one pulley to the other...so shortening the spacer on the side of the block would only bring the whole pump back too far (I’ve tried this that is how I know it wasn’t the right solution haha), .
July 9th, 2018, 05:20 AM
#14
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I was a little successful in getting the pulleys more aligned with each other by putting a washer (about 1 cm thick or so) on the top water pump bolt that the P/S pulley sits on. It pushed out the side of the P/S (left) that was too far in a little bit...the whole alignment is still slightly off, but definitely better than how it was.
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