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water pump 140?

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baccerfarmer2

06-17-2007 14:09:41

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I am rebuilding a 140 drug out of the woods, the block was cracked so I bought a c123 block in excellent condition. When I got it home everything would fit except my water pump. there is a hole in my old block right underneath the head where the water pump goes in my new one there is no hole so I have no idea where the water pump goes. Any ideas???? thanks in advance

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baccerfarmer2

06-17-2007 19:37:08

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Re: water pump 140? in reply to baccerfarmer2, 06-17-2007 14:09:41

thanks, from the casting numbers you gave me it looks like I have a 100 block. I looked up a picture of a water pump for a 100 and it showed that it bolted on the lower right side of the engine. Would the hole in the head be different from a 100 than a 140? As for the bolt in I measured everything and seems to fit. could I possibly get a water pump for a 100 and make it work without changing the radiator, thermostat and all that other stuff?

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Stan(VA).

06-18-2007 08:51:04

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Re: water pump 140? in reply to baccerfarmer2, 06-17-2007 19:37:08

Hugh, thanks for posting the block numbers, didn't have time to look them up again yesterday. I think the 354898 R1 and R2 were both used in the Super's (my '54 Super C block was an R2) and seem to recall we found the 100/200 used the R3. That would be when they started casting the C-123 ID on the block, stopped using the old FCM or FAAM motor prefixes, switched to the C123 prefix and restarted the engine serial numbers at 501.

Back to this thread:
The bolt spacing on the front of the head is the same so you could use either water inlet/thermostat housing. Your problem is that if you stick with the 140 housing it will line up with your radiator neck but will need a bypass blocked off and have no way to mount a fan and belt pulley assy; the 100 housing won't line up with the radiator, but will allow you to mount the old style fan and pulley assy which will line up with the old style water pump. This would require the old style front pulley with the wider fan belt but be aware that the pulleys mount differently as well and you didn't mention if you are trying to use a 140 or 100 style crankshaft which would have the narrow or wide pulley respectively.

I realize that the engine will bolt in; my comment about it not being a "bolt in swap" may have been more clear if I had said that the 140 and 100 blocks are not a direct interchange. I have done the opposite of what you are doing (put a 140 block into a Super C) and that exercise was the basis for the comments. Going the other way you may find some short cuts that weren't open to me? I even recall custom machining an old style pulley once to fit a newer crankshaft but that was a different project.

Possible? Certainly. Simple as bolting on a different style water pump? No.
Stan(VA).

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Hugh MacKay

06-17-2007 15:20:09

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Re: water pump 140? in reply to baccerfarmer2, 06-17-2007 14:09:41

Stan is correct, until 140, water pump was mounted over bottom block port and driven by a 3rd pulley. 140s have the automotive type pump on fan hub.

If you want block part numbers SA is 354898 R1, 100 is 354898 R2, 130 is 366204 R1 and 140 is 367825 R2.

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Stan(VA).

06-17-2007 14:37:11

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Re: water pump 140? in reply to baccerfarmer2, 06-17-2007 14:09:41

If you want it to go back together as it was, you need to go get a 140 or 240 block. As you are now seeing, the block casting changed between the 130/230 and 140/240 tractors. The front accessories all changed at the same time. If the block you picked up has the C123 ID cast in, it probably from a 100/200/130 or 230 tractor. The late Super A and the Super C also had the C123 block but it did not have the C123 ID cast in. If you want to keep this block, you need to go back and get all the assy's (water outlet at head, water pump, generator, fan assy, 2 seperate fan belts, and the radiator). If the crankshaft came with the block you already have the older style front crank pulley (wider belt), otherwise you need it. If you got a governor with the block you may also need the gov to carb arm from that tractor as they are different length.

Not impossible, but not a bolt in swap either...
Stan(VA).

Happy Fathers Day :)

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