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Old 06-24-2019, 05:08 PM   #1
bobcat1
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pulleys again

I think I have the wrong water pump pulley? I bought a used 307 engine and the water pump pulley was just sitting on the pump. now I am attempting to install the belt and the crank pulley is about 1/8 inch set back compared to the water pump pulley. I pulled the crank pulleys off and they look original, they are stamped 44043bagm and 51232bbgm. what would be a matching water pump pulley part number? this engine has the short water pump and is running power steering. thanks for any help
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Old 06-24-2019, 06:17 PM   #2
demian5
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Re: pulleys again

I don't think a 307 came with a short water pump.
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Old 06-24-2019, 06:28 PM   #3
bobcat1
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Re: pulleys again

well if that is true I have an even bigger mess to deal with? the waterpump that came on the engine was the short pump and had signs of leakage so I bought a new one. so do you think I if buy a long water pump all the pulleys will work?
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Old 06-24-2019, 06:43 PM   #4
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Re: pulleys again

Take the new pump back to the parts store and set a long water pump next to it for comparison.
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Old 06-24-2019, 09:12 PM   #5
Mike C
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Re: pulleys again

Quote:
Originally Posted by demian5 View Post
I don't think a 307 came with a short water pump.
My 69 short step with its factory 307 certainly did.

OP didn't say what motor was out of but I would think Google would be a good source of part #'s for pulleys and figuring out what he has versus what he needs.
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Old 06-24-2019, 10:11 PM   #6
SmirchIs#1
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Re: pulleys again

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Originally Posted by bobcat1 View Post
well if that is true I have an even bigger mess to deal with? the waterpump that came on the engine was the short pump and had signs of leakage so I bought a new one. so do you think I if buy a long water pump all the pulleys will work?
I'm in Cobleskill which isn't that far from you.I have a bunch of these trucks.I can help you out.Dennis 518-234-2480 or 518-528-2646 cell
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Old 06-25-2019, 09:04 AM   #7
bobcat1
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Re: pulleys again

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Originally Posted by SmirchIs#1 View Post
I'm in Cobleskill which isn't that far from you.I have a bunch of these trucks.I can help you out.Dennis 518-234-2480 or 518-528-2646 cell
thanks Dennis I will contact you
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Old 06-25-2019, 11:43 AM   #8
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Re: pulleys again

Just my 2 cents. That pully shaft is just a pressed fit so it could be out or in to far. I got a shorty for my 327 and had the same problem, so I put it in a vise and pressed it in a little. If it's in to far you might need to get creative to pull it out.
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Old 06-25-2019, 12:56 PM   #9
wpavlis
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Re: pulleys again

I had exactly the same problem when i swapped in a 350 for my worn out 307. It was a short water pump on the 307. Swapped the pulleys over to the 350 and the crank pulley was in about 1/8". I checked and the alternator and water pump were in perfect alignment. I ended up buying a spacer from speedway. Works perfectly now.
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Old 06-25-2019, 12:59 PM   #10
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Re: pulleys again

Like this. Don't forget that you may need longer bolts as a result.

https://www.speedwaymotors.com/Speed...YaAheQEALw_wcB
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Old 06-25-2019, 07:21 PM   #11
bobcat1
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Re: pulleys again

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Originally Posted by Bongo68 View Post
Just my 2 cents. That pully shaft is just a pressed fit so it could be out or in to far. I got a shorty for my 327 and had the same problem, so I put it in a vise and pressed it in a little. If it's in to far you might need to get creative to pull it out.
I considered doing that,however the pulley on the water pump has a narrow space at the rear and if moved back it may contact the water pump. I was hoping somone had an old part catalog that could confirm the part numbers needed to make the whole set up work.
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Old 06-25-2019, 07:33 PM   #12
bobcat1
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Re: pulleys again

little more info. the 307 engine I bought was supposed to be out of a 1970 c20.the engine had a.c brackets on it but no compressor. I am going to be adding p/s
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