TR2/3/3A Water Pump post 60000 TR3

[Tinkerman]

Afternoon All:
Any one out there have any experience rebuilding a water pump? I have what I think is a really good one but I was going to take it apart and clean it and etc. I was reading the manual and it started talking about Churchill tool # so and so, and I got to thinking maybe I better let sleeping dogs lie.

Any thoughts?

Thanks, Tinkerman

 

[TRTEL]

If it's an original type pump, (ie, it's got a grease fitting, brass impeller) I think I'd go with the sleeping dog, even though it's more likely to need the rebuild unfortunately. My past experience with them left me batting about .500. The latter replacements with a cast iron impeller a better bet, as long as it's not overly corroded inside. The original brass are just too easy to warp even with a good tool setup to simulate the Churchill tools. And they used solder to seal them, so it does pay to heat the impeller with a torch in the removal process. I've not found a source of the grease/water seal unless it's NOS. Personally, I'd recommend getting one to practice on first and then tackle the good one.
Tom Lains
TS8651 & 58107

 

[Geo Hahn]

I have a video of a water pump rebuild... the guy uses a homemade tool to open it up...

You may have to go squinty-eyed to make out what that is.

As I recall the tricky bit is undoing the circlip inside the thing. I'll confess I have not actually tried this.

As noted, the seal may be unobtainium... supposedly used to be available from massey-Ferguson dealers but I would doubt that is still the case.

Anyway, replacement pumps are available with a functional grease zerk so I would probably never bother to try my hand at rebuilding unless it really was a genuine original pump.

 

[Tinkerman]

I hear you. I don't think I will try to messwith it. It seems very tight and making no noise. I'm going to paint and mount it on.
Thanks both of you for your thoughts.

Tinkerman

 

[sp53]

Hi Tinkerman I think VB offers that back seal. It is a clever looking accordion shaped spring loaded rubber seal that seals water one way and grease the other( very cool), but like everybody mentioned, I would not take that one apart. In the past, I have left the impeller on the shaft and pressed the shaft and the impeller out as one piece backwards. When doing this, the snap ring inside gets toasted, but the bearings and shaft are ok and the shaft and impeller stay in one piece making separating them (if you want) much easier. Again for the price of a new one, it is not worth it because the bearing would probably be bad. But like everything on a tr3 it strips down to a rebuild able metal casing.

Sp53