Opinion On Water Pump Rebuild Services

I cannot comment on the quality of work as my engine is not yet running but in turnaround time and ease of dealing with I found them to be very good.

 

FD has rebuilt a pump for me. I disassembled it after some 10 years it was not leaking but is was doing an engine overhaul and did not want to overlook anything. The pump used a 3 bearing design. They also milled a seat into the back of the impeller which is matched to the shaft. Uses an off the shelf seal. Never had an issue. I have rebuilt one to the same design with no issues. Not sure what other rebuilders do but I like the FD and it lasted for me.

 

The Flying Dutchman is a very nice fellow, unfortunately I had to have several conversations with him when trying to get a water pump rebuilt from him that wouldn't leak. See post#4 for details of my experience. It seems others had better success with his services than I did: http://www.ferrarichat.com/forum/threads/328-water-pump.465354/

 

I really like Nick's parts/replacement waterpump and he has a great track record

 

I think you'll find that those bearings can't be pressed out, because there is a rib between them, machined into the pulley bore.

When I've rebuilt mine, I set the pulley on a ring that's larger than the diameter of the bearing, and gently heat the pulley with a propane torch. When the pulley expands just enough, the bottom bearing just falls out. Then repeat for the other side.

 

He did my 77 and told me not to worry about it for another 100K miles. No problem with turn a round and did a great job. Easy to work with and very responsive. It's still running as far as I know with 40K on it.

 

Heating the pulley per ZOOOOMZ suggestion is a good idea, but the each bearing need to be driven out from the inside (i.e., place a punch against the inner race of one bearing between the bearings are drive it outward and then move the punch around the circle to drive it out evenly). If you've moved both bearings together in one direction by 1/16", the pulley and/or snap ring might be damaged (but there is some clearance for the outer races to move relative to the snap ring 58 that's between the outer races -- that snap ring 58 is what is preventing you from pushing both bearings out together in one direction). Don't lose the spacer 56 that's between the inner races:

https://www.ricambiamerica.com/car-diagrams/ferrari/v6-v8/328-group/328-1985/water-pump-and-piping.html

 

Why not rebuild the pump yourself? Its actually pretty simple. If you've pulled it out of the car, that was the hard part

 

There are a couple of threads in the archive on this. The four parts you need are the pump to housing gasket, the two bearings and the seal. You can get the gasket from any Ferrari parts source you choose and McMaster-Carr has the seal and the bearings. I did mine a year ago and the two bearings (premium SKF made in Italy) and the two part seal were $66 delivered.

 

I don't remember the guy's name - Rob Garven will, because he was the one who suggested him to me - but there is a guy on the east coast that rebuilds, primarily, Jaguar pumps, but does exotics as well, including Ferrari. I got a large bearing pump for my 308 through him and it's been almost nine years and not a drop coming out.

 

Hahahah! Always a sign of success