Topic: studs vs cap screws


MrHenderson    -- 09-04-2024 @ 7:17 AM
  My memory of the water pumps is that each had 2 studs w/nuts and one cap screw.
I have not been able to prove of disprove that in the '28 - '48 chassis book.


zeke3    -- 09-04-2024 @ 12:29 PM
  I have only seen capscrews used on the water pumps that are mounted in the block.


carcrazy    -- 09-04-2024 @ 12:33 PM
  Don't know what year engine you have but 24 Stud Flathead V-8's from 1938 and later use 4 bolts to retain each water pump to the engine block. One of these bolts is "hidden" inside the lower water hose inlet nipple. It is recommended to use a stainless steel bolt for this location to ease the replacement of the water pumps in the future.


MrHenderson    -- 09-04-2024 @ 8:23 PM
  Yes, my oversight for not writing 21 stud engine, pumps in the head.
It's been a long time since it was taken down. I have the memory of studs, and now it looks logical to have 2 studs in the closed holes & 1 cap screw in the outboard hole. But I haven't found a box with the 3/8 inch studs. Maybe when I had the engine rebuilt I didn't notice that they were gone.
I do remember that hidden bolt in my '47 engine though. Thanks!


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