Posted: Thu May 24, 2018 4:46 am Post subject: M38 water pump and crankshaft pulley alignment
With the water pump installed, the two pulleys are out of alignment by .129 inches. Water pump pulley is forward. Water pump pulley has been pressed on flush with the water pump shaft. Is the misalignment acceptable or should I have the water pump pulley pressed more to improve alignment? Thanks in advance.
Joined: Feb 17, 2012 Posts: 530 Location: Del City, OK
Posted: Thu May 24, 2018 6:14 am Post subject:
Press it on more... will not hurt it any... so long as you brace the innards of the water pump and only move the pulley... _________________ Hal, KB1ZQ
TSGT, USAF (Ret)
1952 M-38 CDN CAR 52-31313
1952 M-100 Strick #104
1951 Willys Wagon (For Sale)
1954 Willys M38A1 201001205
Tornado Alley
Del City, OK
so long as you brace the innards of the water pump and only move the pulley
To do this properly requires removal of the pump from the engine. Then pressing the pulley with the impeller firmly supported to prevent damage to the bearing or it's retainer clip.
The rebuild instructions for the pump are in your TM 9-1804A for the M38 and TM 9-8015-2 for the M38A1. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
I'm in the final assembly of the engine. I did a dry install of the water pump to determine the misalignment. Unfortunately, no one in this small town is willing to attempt pressing the water pump pulley to take up the slack. Guess I'll have to do some travelling.
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