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Forums->Hot Heads Tech Talk->241 belt alignment

ysr450
241 belt alignment


I am new to the hobby and started with a project to learn with. 53 dodge with a 241.

I was told the engine was not messed with and ran up to a couple years ago. It was missing the belt and when I looked at it, I noticed that the it appears the belt pulleys don't appear to be aligned. That the pulley from the water pump is forward of the lower pulley by about 2 belt widths. Is this right?
I have found other photos on the web that show some misalignment, but nothing that shows definitively what I am seeing with mine.


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on: Fri 05 of Aug, 2011 [17:23 UTC] reads: 12396

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ron37
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Re: 241 belt alignment
on: Fri 05 of Aug, 2011 [18:31 UTC] score: 0.00
Some of them had a factory double or 2 single pulleys on the crank. Maybe someone took the front one off or exchanged the double for a single. You could also check around on other engines that had belt pulleys and find a water pump one that would set back farther on the water pump. A lot of water pumps use the same bolt pattern on the water pump no matter what manufacturer. I have interchanged Chevies, Mopars, etc. to get where I need. Most have 1/4" bolts. Now on my Ford tractor, I used a Jeep 6 blade fan for better cooling. The pump bolt hole circle was just slightly off or just slightly larger. So I drilled the 4 bolt holes in the fan to 5/16". The fan bolted right up with the bolts just toughing the inside edge of the hole, which keeps it centered. Just measure your bolt circle diameter, the pulley diameter and how deep you need it to set back. Then go looking around at other vehicle. You could also just hunt up another crank double pulley. I am sure there are a lot of them stuck on the shelf or junk piles in hemi guy's garages. Like I mentioned before, I have seen them with a factory double pulley and also with a second single pulley bolted on. Hope this helps.

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George
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Re: Re: 241 belt alignment
on: Fri 05 of Aug, 2011 [21:58 UTC] score: 0.00
> Some of them had a factory double or 2 single pulleys on the crank. Maybe someone took the front one off or exchanged the double for a single. You could also check around on other engines that had belt pulleys and find a water pump one that would set back farther on the water pump. A lot of water pumps use the same bolt pattern on the water pump no matter what manufacturer. I have interchanged Chevies, Mopars, etc. to get where I need. Most have 1/4" bolts. Now on my Ford tractor, I used a Jeep 6 blade fan for better cooling. The pump bolt hole circle was just slightly off or just slightly larger. So I drilled the 4 bolt holes in the fan to 5/16". The fan bolted right up with the bolts just toughing the inside edge of the hole, which keeps it centered. Just measure your bolt circle diameter, the pulley diameter and how deep you need it to set back. Then go looking around at other vehicle. You could also just hunt up another crank double pulley. I am sure there are a lot of them stuck on the shelf or junk piles in hemi guy's garages. Like I mentioned before, I have seen them with a factory double pulley and also with a second single pulley bolted on. Hope this helps.

Don't forget shaft size on W/P pulleys you don't want just the bolts supporting it.


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