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Joined: Feb 2002
Posts: 562 Likes: 1
Oil Can Mechanic
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OP
Oil Can Mechanic
Joined: Feb 2002
Posts: 562 Likes: 1 |
35 and 36 water pumps are each listed as one year only. What is the difference? Thanks
Dick
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The impller kept getting larger.
Gene Schneider
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Joined: Feb 2002
Posts: 562 Likes: 1
Oil Can Mechanic
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OP
Oil Can Mechanic
Joined: Feb 2002
Posts: 562 Likes: 1 |
Anyone know what the impeller diameter size is ? I have an after market pump with a 3 1/8" impeller. Is it a 35 or 36 ? Thanks
Dick
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The only thing I can find is the 1935 is 3 1/8".
Gene Schneider
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Joined: Aug 2004
Posts: 3,469 Likes: 48
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Aug 2004
Posts: 3,469 Likes: 48 |
I believe the impeller is also deeper (thicker) on a '36 pump.
Mike
ml.russell1936@gmail.com
Many miles of happy motoring
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
Probably correct as the 1936 engine does not use the baffle plate in the block (behind the water pump).
Gene Schneider
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Joined: Feb 2002
Posts: 562 Likes: 1
Oil Can Mechanic
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OP
Oil Can Mechanic
Joined: Feb 2002
Posts: 562 Likes: 1 |
So this after market Permite # PP8011 impeller is 3/4" by 3 1/8". Still don't know if its a 35 or 36 as I don't have an engine apart to compare sizes. Thanks
Dick
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Joined: Aug 2004
Posts: 3,469 Likes: 48
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Aug 2004
Posts: 3,469 Likes: 48 |
I will try to remember to look at some pumps when I am at my old shop. It might be a few days.
Mike
ml.russell1936@gmail.com
Many miles of happy motoring
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Joined: Dec 2001
Posts: 145
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Dec 2001
Posts: 145 |
The 1935 pump is shallower due to the baffle plate as Gene said.
The 1935 water pump is cast 837610. It can be ID'ed by the vanes on either side of the impeller disc being two different sizes.
The 1936 water pump is cast 836078 and it has equal size vanes...
Also, the mounting bolt holes for the two pumps are 1/2 of a hole off so you can't put the wrong water pump on the wrong block (assuming it was built with the correct impeller in the first place).
Mike B :)
Mike Boteler
1935 Master Technical Advisor
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Joined: Jul 2006
Posts: 1,884 Likes: 12
ChatMaster - 1,500
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ChatMaster - 1,500
Joined: Jul 2006
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Mike, You're right. I tried putting a 36 Pump on my 35 once and found out I couldn't get one bolt in. Gene advised me they won't interchange.
Jon T.
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Joined: Feb 2002
Posts: 562 Likes: 1
Oil Can Mechanic
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OP
Oil Can Mechanic
Joined: Feb 2002
Posts: 562 Likes: 1 |
My aftermarket pump has different size vanes so will assume its a 35. Thanks for all answers.
Dick
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Joined: Aug 2004
Posts: 3,469 Likes: 48
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Aug 2004
Posts: 3,469 Likes: 48 |
I measured the impellers on '35 and '36 pumps. Both measured closer to 3" than 3-1/8". '35 was 3/4" thick, '36 was 7/8" thick. I have pumps with 2-3/4" X 3/4" impellers. Are these '34 pumps?
Mike
ml.russell1936@gmail.com
Many miles of happy motoring
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