Golden Jubilee
Posts: 590
Joined: Mon Apr 06, 2015 11:00 pm
Location: SLC, UTAH
SD/BD/BG Water Pump Replacement - Gates 42317
My old pump started to leak after I drained and removed the radiator for cleaning. The seal was so old that once it dried out it cracked, and that was the end of that. The impeller seal area was corroded as well. I could have rebuilt it, but I was racing against the seasons to just get it done.
After a lot of Googling I discovered there is a new pump available for the IHC agricultural I6 engines, Gates part number 42317. It looked about right so I decided to go for it. It worked, really well in fact, but I had to do the following:
- The pulley flange is almost exactly one inch too short. I'm in the process of having an aluminum spacer turned, but in the interest of time I made a temporary fix (which shows no sign of problems). In between the pulley and flange, on all four bolts, I installed a heavy steel spacer, 1/4" inner diameter, 1" long. Bolts are Grade 8 steel with lock washers and Loktite.
- The casting is a bit thick, so the four pump mount bolts are very close to the pump body. It's too close to get a socket over the heads, so instead I used cap screws.
- Same problem with the heater hose inlet. I had to trim down the hex shape and used Vise Grips (carefully) to install it.
- The gasket between the block and pump has a tab for a screw that actually goes between the pump back plate and pump body. Not sure why as it causes interference. Simple enough, just cut off that tab.
There are a few advantages to this new pump:
- The impeller is a better design and seems to run cooler at idle
- There are outlets in nearly every position for all sorts of applications
Anyhow, just though I'd pass this along.