Having a problem with the engine water pump on the DUKW. Engine is a GMC 270 straight 6. Water pump is leaking. I need to either replace with new, or get the old one rebuilt. Anyone have any leads on any of the following:
1. Actual part number, and/or equivalents. ( I can't find my SNL G-501 anywhere, and I dont fully trust the numbers on the old one!)
2. Name of a good place to do a rebuild, or
3. Where to get a new/rebuilt replacement.
Note: The water pump on the 270 GMC used in the DUKW is not the same as the water pump on the 270 GMC used in the other CCKW trucks. It has a longer shaft, and the pulley is held in place by a combination of woodruff key and a threaded bolt. The shaft is longer because the distant between front of engine and radiator is greater than on CCKW to allow for engine driven compressor for tire inflation system.
Below are pictures of leaking water pump. Number on old pump appears to be L-114155
Any assistance greatly appreciated.
1. Actual part number, and/or equivalents. ( I can't find my SNL G-501 anywhere, and I dont fully trust the numbers on the old one!)
2. Name of a good place to do a rebuild, or
3. Where to get a new/rebuilt replacement.
Note: The water pump on the 270 GMC used in the DUKW is not the same as the water pump on the 270 GMC used in the other CCKW trucks. It has a longer shaft, and the pulley is held in place by a combination of woodruff key and a threaded bolt. The shaft is longer because the distant between front of engine and radiator is greater than on CCKW to allow for engine driven compressor for tire inflation system.
Below are pictures of leaking water pump. Number on old pump appears to be L-114155
Any assistance greatly appreciated.
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