why do I need alternator spacer for water pump on 69 ss 350 - Team Camaro Tech
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post #1 of 8 (permalink) Old Jan 25th, 09, 06:15 PM Thread Starter
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Doug
 
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why do I need alternator spacer for water pump on 69 ss 350

Hey all. Have been looking at many pictures of different 69 SS 350 cars and noticed on some ( like my set up) there is a small spacer between the upper alternator bracket and the water pump. The upper bracket also mounts to the thermostat housing.

I have also seen pictures where there is no spacer used. I assume the no spacer is the correct way. My water pump is not original. It is a GM pump but more modern. Does anyone make a repo that is correct for my 69 Camaro SS.
Can someone please offer some info on the water pumps.
Thanks guys.
-Doug
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post #2 of 8 (permalink) Old Jan 25th, 09, 06:22 PM
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Re: why do I need alternator spacer for water pump on 69 ss 350

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Originally Posted by Mr. Super Sport View Post
Hey all. Have been looking at many pictures of different 69 SS 350 cars and noticed on some ( like my set up) there is a small spacer between the upper alternator bracket and the water pump. The upper bracket also mounts to the thermostat housing.

I have also seen pictures where there is no spacer used. I assume the no spacer is the correct way. My water pump is not original. It is a GM pump but more modern. Does anyone make a repo that is correct for my 69 Camaro SS.
Can someone please offer some info on the water pumps.
Thanks guys.
-Doug
There are lots of different water pump styles used over the years, a few different top alternator brackets, and some aftermarket aluminum intakes have the hole for the rear of the alternator bracket in the wrong location. All of these variables can make for some "interesting" modification being needed to get everything to line up.
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post #3 of 8 (permalink) Old Jan 25th, 09, 06:31 PM Thread Starter
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Doug
 
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Re: why do I need alternator spacer for water pump on 69 ss 350

Thanks Mark. Has the stock cast iron intake manifold and the stock upper alternator bracket.
-Doug
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post #4 of 8 (permalink) Old Jan 25th, 09, 09:41 PM
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Tom
 
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Smile Re: why do I need alternator spacer for water pump on 69 ss 350

Is this the spacer you are referring too ?


69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #5 of 8 (permalink) Old Jan 25th, 09, 10:06 PM
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Re: why do I need alternator spacer for water pump on 69 ss 350

Some brackets, where bolts to inlet manfold have sloted holes...I think the factory is??
My factory is stored way, right down the bottom, so forgive me for not checking
My aftermarket chome one is slotted.
The one before I cracked after about a yr, it wasnt slotted and I didnt use a spacer.

My Spelling is not incorrect...it is creative

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post #6 of 8 (permalink) Old Jan 25th, 09, 10:24 PM
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Re: why do I need alternator spacer for water pump on 69 ss 350

The new/GM/reman water pumps are kind of a one-size-fits-all, and come with that spacer for applications when needed.

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post #7 of 8 (permalink) Old Jan 26th, 09, 02:14 AM
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Re: why do I need alternator spacer for water pump on 69 ss 350

the long water pump came out in 68 in some cars, and 69 in everything but trucks. it was a nice and clean setup that is easy to work with.
they changed the upper alt mount for 76 for reasons only known to the GM engineers, and i think they also changed the PS pump mounting boss at that same time so they could use the overly complex mounting setup with 3 bolts to hold belt tension- one of which is behind the pump and almost impossible to get at.
then sometime in the early 80's they changed things again, and when they started using reverse rotation pumps in serpentine setups, they got rid of the alt and PS mounting bosses altogether, and some cars and trucks even got rid of the threaded hole for the heater hose.

if you go to NAPA or any decent parts store locally, you can get the correct pump for your year for about $40, and then hopefully you have the correct upper alt bracket to go with it. or you could just go find a later model upper alt bracket in the junkyard for a few bucks if you really want to get rid of that spacer.

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you have to make it up on the spot.

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post #8 of 8 (permalink) Old Jan 26th, 09, 07:12 AM Thread Starter
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Doug
 
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Re: why do I need alternator spacer for water pump on 69 ss 350

Thanks guys. I may see if i can track down an original 69 pump and see if it can be rebuilt. I appreciate your help.
-Doug
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