Different water pumps for a model B?
 

Recently I pulled the engine on my 33 model B to fix oil leaks. That is when I realized the mechanic I had before had cut all the engagement teeth of the crankshaft pulley. After careful assesment it was evident that the water pump fitted to the engine is much longer than the one originally in the car. Because of that reason the crank pulley was also lengthened and move forward and the outcome was no room for the crank pulley nut. To make things worse, he lost my original water pump.

These are photos of the actual 2 pumps. Notice that the replacement is much longer. Otherwise it fits well worked fine.

Is this longer pump correct for 33? Is it perhaps a 32? If so, I will be happy to trade for a 33. I want to restore correctly, including the ability to use the hand crank, which with this setting is not possible.

Comments please! Thank you

Re: Different water pumps for a model B?
 

It's a '32 pump as you surmise. The '33-'34 pump was shorter to accommodate the slanted radiator.

Re: Different water pumps for a model B?
 

What did he do to get the generator to line up??
I assume you have the 33-34 timing gear cover.

Bob

Re: Different water pumps for a model B?
 

I likely have a original 33-34 water pump I would gladly give you if you would be willing to pay the shipping charges

Re: Different water pumps for a model B?
 

Yes, it is a 33 cover. Not really sure how he did it and by now I am afraid to find out!:confused::eek: I have a couple of guys coming this weekend to help dropping the engine back and I will check with them to see if I can figure it out. However, all 3 (fan, crank and generator) got lined up pretty well. They moved forward about an inch from their expected location though.

Re: Different water pumps for a model B?
 

Of course!:) That will be fantastic. PM sent

Re: Different water pumps for a model B?
 

The shortening in 1933 involved short pump, the '33-4 front cover with generator mount set back, and a crank pulley identifiable by having an extended part on crank left bare when pulley itself moved back...If there's no room for the nut now that may mean that mechanic spaced the original pulley outward, and you can remove his spacer and put pulley where it belongs...
I think if you have wrong pulley, the front face of pulley is the most forward part. If that pulley is the right one, it has about one inch of tubing ahead of actual pulley...
On the pump, if you have a good casting for the short pulley you can rebuild it.
The pump impeller is the same as the '32 one and is also available reproduced.
Aside from that impeller, all else you need is readily available from Model A suppliers...
for the short pump, you just move the impeller up to suit and saw off the extra shaft.

Re: Different water pumps for a model B?
 

Bruce: Well, this mechanic did something similar as you can see in the attached photos. He lengthened the pulley which is about an inch shorter in my original one. Recently the machine shop added a sleeve to make it wider in order to fit a new modern oil retainer to fix bad oil leaks. I presume this pulley can be shortened back to original once I have the correct water pump.

Re: Different water pumps for a model B?
 

I understand how removing a spacer would align the fan pulley and crank pulley, but what about the generator? How do you move that back?

Re: Different water pumps for a model B?
 

You can also install a 36 V/8 type pump on the 4 cylinder engine.
I have one on my "B" engine in a 31 deluxe phaeton. Picture
disappeared from the pictures in this computer. Will see if it's on
the PC at the office and add it later. G.M.

Re: Different water pumps for a model B?
 

The use of a V-8 pump necessitates the adoption of a substitute fan, presumably an electric one. Given the slant of a '33 radiator (compared with the vertical position of Model A and '32 radiators), it is unlikely that there is sufficient space between the end of the V-8 water pump pulley and the radiator core to accommodate an electric fan on the back side of the radiator. That suggests the need for a front-mounted fan, which is getting pretty far removed from the original set up, which I believe is Manuel's objective wherever possible.