Early 1964 409 pulleys

[Jridge1]

I have a qc 409 the car has original ac and power steering. It has a dual deep groove crank pulley but the power steering pulley doesn't seem to sit all the way back in the dual pulley. Seem to be where I get a squeal from.
What are the correct numbers for the crank, crank power steering, and water pump pulleys?
Thanks

 

[gwagon]

I have a qc 409 the car has original ac and power steering. It has a dual deep groove crank pulley but the power steering pulley doesn't seem to sit all the way back in the dual pulley. Seem to be where I get a squeal from.
What are the correct numbers for the crank, crank power steering, and water pump pulleys?
Thanks

Pictures of pulleys on my 64 409 with air, power steering.

 

[Jridge1]

Are those original?

 

[Jridge1]

Do you have the numbers from the pulleys

 

[gwagon]

Are those original?

I think they are but not 100% sure they were on matching number 64 that did not appear to have anything replaced on it.
I don't have part numbers,sorry

 

[Jridge1]

Nice rebuild btw looks great

 

[gwagon]

Nice rebuild btw looks great

Thanks

 

[427John]

Jridge,you may have to shim some of your pulleys to get good alignment especially if your dual deep groove water pump pulley has the reinforcement plate that chevy started using around that time.Apparently there were some issues with some pulleys cracking and tearing out in the center and the reinforcement plate was a recall or tsb item,it can affect the alignment and require shimming the others to get perfect alignment.

 

[Jridge1]

Yes it does have the reinforcement shim. It is the right number pulleys from the parts book so I think you are right about the shims

 

[Jridge1]

On that same motor the date code on the water pump is "conv4" anybody know what that means? It had an x on it similar to the block x the casing number is a 64 passenger

 

[oldskydog]

Conv4 is not a date code it means it was cast on conveyor #4. Not all waterpump castings had dates.

 

[Jridge1]

Well thank you now I can stop beating my head on the desk lol. Did they all have they x or is that 409 specific

 

[Jridge1]

My money was on convertible "conv"

 

[Phil Reed]

Does it have a 7 digit Chevrolet part number??

 

[Jridge1]

Yes 3732750 right around the shaft of the pump. The conv4 is where the date code usually is and x is on the middle to drivers side of the pump. I'll get a picture of it tomorrow

 

[oldskydog]

As far as I know there was no definitive answer to what the x meant. It seems to have been used when castings were modified, improved, or the first run of a new metalurgical mix of the iron.

 

[Jridge1]

I thought I read somewhere the x only appeared on 63 n 64 409 passenger car blocks. That's how the differentiated the truck blocks from car blocks? Not for sure though.

 

[Jim Sullivan]

409 car and truck blocks and later 348s had the X on the block.

 

[heddrik]

Skydog always amazes me with his encyclopedic knowledge of almost everything on these cars! How does he know the pump was made on conveyor 4? Awsome. Such a great site here, thank you all, I am constantly learning.

 

[La Hot Rods]

Cecil may have been working on that line.