The Ford Barn

Lefthander1930 · 05-08-2025, 08:09 AM

How do I tell the difference between the stock water pump and the leakless type ?

Bob Bidonde · 05-08-2025, 09:22 AM

The shaft will not move in & out on a leakless pump, but it will on a stock pump.

Will N · 05-08-2025, 10:09 AM

When a leakless water pump starts to leak (and it will, been there, done that) there is nothing you can do but rebuild the pump. Hard to do on the side of a road. When a regular water pump starts to leak, you can add a split ring of packing or two and be on your way in no time. Easy to do on the side of a road.

jw hash · 05-08-2025, 01:00 PM

when I build a leakless pump, I use the Snyder`s rear bushing with the two-lip seals in the rear. I then install the original style packing under the packing nut. if it starts leaking just tighten the nut up and you are back on the road.

KMBeers · 05-09-2025, 07:10 AM

I have the same pump jw, and it works well. One needs to back out the packing nut before adding grease to keep from pushing it into the head. I have never had a standard pump on my car, it had one when I got the car so I don’t know if the same thing needs to be done on a standard water pump.

Big hammer · 05-09-2025, 07:36 AM

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Quote:

Originally Posted by Lefthander1930

How do I tell the difference between the stock water pump and the leakless type ?

When you take it apart, from the outside probably no difference, the leaks less probably won’t take grease, leakless - leak less will leak at sometime ! I was under my A reinstalling the steering gear box and all of a sudden drip drip what the heck ! I tightened the packing nut 1/2 turn the dripping stopped and after I started up the A maybe another 1/2 turn on my leaks less pump !

Kurt in NJ · 05-09-2025, 11:21 AM

There are a lot of variation in the modifications made to make a so called leakless pump.
Taking it apart is probably the only way that is not somewhat of a guess.
Some stock pumps have had a collar installed to prevent movement.
Some modified to be in the class of leakless can have the shaft move in-out.
Personally I like the leaks less and less of a stock pump as everything beds in, a few adjustments in the first year then it becomes every several years.

05-08-2025, 08:09 AM	#1
Lefthander1930 Senior Member Join Date: Nov 2015 Location: Roseville Ca. Posts: 176	Water pump question How do I tell the difference between the stock water pump and the leakless type ?

05-08-2025, 09:22 AM	#2
Bob Bidonde Senior Member Join Date: May 2010 Location: Long Island, NY Posts: 4,114	Re: Water pump question The shaft will not move in & out on a leakless pump, but it will on a stock pump. __________________ Bob Bidonde

05-08-2025, 10:09 AM	#3
Will N Senior Member Join Date: Jul 2010 Location: Pennsylvania Posts: 1,251	Re: Water pump question When a leakless water pump starts to leak (and it will, been there, done that) there is nothing you can do but rebuild the pump. Hard to do on the side of a road. When a regular water pump starts to leak, you can add a split ring of packing or two and be on your way in no time. Easy to do on the side of a road.

05-08-2025, 01:00 PM	#4
jw hash Senior Member Join Date: May 2010 Location: Auburn Washington Posts: 2,662	Re: Water pump question when I build a leakless pump, I use the Snyder`s rear bushing with the two-lip seals in the rear. I then install the original style packing under the packing nut. if it starts leaking just tighten the nut up and you are back on the road.

05-09-2025, 07:10 AM	#5
KMBeers Senior Member Join Date: Dec 2021 Location: Havertown, PA Posts: 104	Re: Water pump question I have the same pump jw, and it works well. One needs to back out the packing nut before adding grease to keep from pushing it into the head. I have never had a standard pump on my car, it had one when I got the car so I don’t know if the same thing needs to be done on a standard water pump.

05-09-2025, 11:21 AM	#7
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,556	Re: Water pump question There are a lot of variation in the modifications made to make a so called leakless pump. Taking it apart is probably the only way that is not somewhat of a guess. Some stock pumps have had a collar installed to prevent movement. Some modified to be in the class of leakless can have the shaft move in-out. Personally I like the leaks less and less of a stock pump as everything beds in, a few adjustments in the first year then it becomes every several years.