Pips_Blaauw Posted January 16, 2022 Share Posted January 16, 2022 Greetings everyone! Recently ive been restoring my weasel to its best potential... this means i also took out and cleaned the radiator. Since cooling is very important on these vehicles.... On closer inspection, the water pump seemed to leak. At first, i fitted new paper gaskets in combination with sealant. This, however did not fix the issue. After a while, I noticed the inside of the pully on the waterpump was wet. Does this mean the outer seal of the pump shaft is bad? The bearings sound and feel good... I immediately bought the available parts of the waterpump on ebay, but now the question is: does anyone have experience with the refurbishment of the pump? and if so, do you have any tips on how to do it? hope its a doable fix.... Regards, Rob from the Netherlands! 1 Quote Link to comment Share on other sites More sharing options...
Patrick Tipton Posted January 16, 2022 Share Posted January 16, 2022 Greetings Rob: Sounds like the seals and/or bearing are failing. This is a video I made for the WW2 jeep water pump. The Weasel water pump rebuild is exactly the same process and steps. Don't forget to install the one bolt in the Weasel pump before you press on the pulley. 1 1 Quote Link to comment Share on other sites More sharing options...
OZM29C Posted January 17, 2022 Share Posted January 17, 2022 (edited) @Pips_BlaauwHave a look at my photos below on how I had to rebuild my Water pump. Not withstanding Patrick's great video, this might give some thoughts and ideas on how to rebuild your pump. The stainless steel collar was an interderence fit into the pump housing. The epoxy adhesive was just for added security. Edited January 17, 2022 by OZM29C Added more information 1 1 Quote Link to comment Share on other sites More sharing options...
Patrick Tipton Posted January 18, 2022 Share Posted January 18, 2022 Great solution John, as always. You probably saw that back in the day they made a special cutting tool for cleaning up the sealing face. It is shown in TM 9-1772. So far, i have rebuilt two Weasel water pumps and both were in nice shape...just a little 3m pad to polish them up. Given how hard it is to find one, though, this is a great way to fix one with a pitted surface. Cheers! 1 Quote Link to comment Share on other sites More sharing options...
OZM29C Posted January 18, 2022 Share Posted January 18, 2022 (edited) 3 hours ago, Patrick Tipton said: Great solution John, as always. You probably saw that back in the day they made a special cutting tool for cleaning up the sealing face. It is shown in TM 9-1772. So far, i have rebuilt two Weasel water pumps and both were in nice shape...just a little 3m pad to polish them up. Given how hard it is to find one, though, this is a great way to fix one with a pitted surface. Cheers! Yes @Patrick Tipton Patrick, as you can see in the before photo above, the old seal surface was certainly beyond redemption. Having rebuilt many Jeep water pumps this way, it was just a matter of adapting my technique to a Weasel water pump. I don't expect a lot of guys would have access to machining equipment that I have but if they were to print off the photos and take them to their local machine shop, I am sure that the machine shop could do the job for them. BTW the collar is made from 316 Stainless Steel. I also had to machine to size a generic ( I hate to admit it) Chinese made water pump bearing. See info below. Water pump bearing.pdf So far so good with the bearing but I don't think 16 miles on the weasel is a good reliability test as yet. The hardest part to find was the little retaining clip. Luckily a fellow in the UK gave me one but again I suspect that the clip would be a common Studebaker general part. Water_pump_integral_shaft_bearings.pdf Water pump bearing.pdf Edited January 18, 2022 by OZM29C Quote Link to comment Share on other sites More sharing options...
Pips_Blaauw Posted January 18, 2022 Author Share Posted January 18, 2022 Thanks!!! @Patrick Tipton @OZM29C Your tips and remarks are certainly very helpful for me! I do not have access to such metal working machines... but since I will receive a NOS bearing shaft, I am hoping I can "just" use a press to force it out. And then press the new one in place... I am still thinking if I should do this myself, or let a company with some experience do it. Seems like a normal job for you guys 🙂 I am eager to try it out... also a special thanks to the technical drawings! The time you spent on them is paid out tenfold! I will provide updates as soon as I have them... I'll let off the water (for the 5th time in 2 weeks) with the new rubber hoses I installed... The original tubing was completely plugged... The hoses make life a lot easier! WhatsApp Video 2022-01-18 at 10.17.42 AM.mp4 Regards, Rob ps: updates on the glueing of the rubber blocks on the tracks will come soon! Quote Link to comment Share on other sites More sharing options...
Patrick Tipton Posted January 18, 2022 Share Posted January 18, 2022 8 hours ago, OZM29C said: I also had to machine to size a generic ( I hate to admit it) Chinese made water pump bearing. See info below. The hardest part to find was the little retaining clip. Luckily a fellow in the UK gave me one but again I suspect that the clip would be a common Studebaker general part. @OZM29C Totally agree - most guys don't have a mill so repairing the surface like you did is next to impossible. But, if the surface is bad, this is a great fix, even if you have to find a machinist to do the work. These water pumps are getting scarce everywhere, so you have to make them work.. As for shafts, seals and parts, the rebuild kit is the same as several later truck water pumps that are widely available here. PM me for a part number. @Pips_Blaauw If you have a press, this is easy - just a little scary the first time out of concern for the housing. Once you get it apart, check the seal surface and go from there. If the surface is just a little ugly, you can use sandpaper to polish a little...you just need to keep the sealing surface flat and square so if it needs more than a little, better off heading to a machine shop and have them clean the surface up or do John's repair. Patrick 1 Quote Link to comment Share on other sites More sharing options...
Pips_Blaauw Posted January 21, 2022 Author Share Posted January 21, 2022 @Patrick Tipton Sadly I don't have a press, so I brought it away to a machine shop that will do it for me... They have the experience and the knowledge... Quote Link to comment Share on other sites More sharing options...
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