Hi,




Does anyone have the correct stock part number for the 1964 F100 292 Y Block Water Pump? There is lots of misinformation out there on the web. Thank you any help greatly appreciated.

 

You probably won't find one, all you can do is send it off to be rebuilt.

 

You can either send yours out for rebuilding, or buy a rebuilt one...

They are out there,

Or you can buy a rebuild kit

 

B6C-8501-B .. Water Pump / Obsolete

1956/60 F100/600 272 / 1957/64 F100/600 292.

GREEN SALES CO. in Cincinnati OH has 3 = 800-543-4959.

HIGH BUCK! BOB ALLEN FORD in Overland Park KS has 3 = 913-381-2999.
-------------------------------------------------------------------------------------
B6C-8591-A .. Water Pump Repair Kit - Use with B6C-8501-B / Obsolete

KLIMESH MOTOR SALES in Calmar IA has 1 = 563-562-3241.

CARPENTER NOS OBSOLETE PARTS in Concord NC has 701 = 800-476-9653.

 

Thank you very much.

 

Make sure you keep your old one to compare the new one too. Years ago I had a '61 unibody with a 292 and I had to replace the water pump. Went and got the new one and turned in the other for the core charge. When I finally installed the new one, the pulley didn't line up. The parts store couldn't reference a different one. Lucky for me I had a friend who had access to a lathe and he was able to machine a spacer block so the pulley would line up. (That was 40 yrs ago.)

 

Green Sales lists the B6C8501B water pump on their site as Y BLOCK V/8 ==3 7/8 DIA IMPELLER 5/8 SHAFT. Is that right? I believe the truck should have a 3/4 shaft and the larger impeller. Can you guys confirm? Thank you

 

Some trucks, certain years, have to made as difficult as possible.

 

I checked my rebuild kit and it has a 4 3/4" impeller and 3/4" shaft.

 

In 2005 I was in need of a water pump for my 292, I went to my local "Star Auto Parts" store. There was a gentleman working there who refused to look at the computer for replacement parts on older vehicles. he used books! (the first attempt, (based on information I gave him.) produced the wrong water pump. I then brought him the one that was bad, by that afternoon I had the correct one. Perfect fit. It pays to take the old one with you for comparison. Older part's places are best for parts.

 

I've never understood exactly what the issue is, the vendors are selling water pumps designed for a car as the correct one for our trucks or something?? Or is part of the problem ya hafta rip into it to actually see what ya got? Have a rebuild kit now I'm figuring it will (naturally) be the wrong one. Can I measure the diameter of the output shaft externally?

 

The Y block water pump impeller is the same 1955/62 car; 1955/64 truck:

B5A-8512-B .. Impeller / 4.75" O.D. x .68 I.D. x 1.41" depth.

 

Approximately 7 years ago my water pump went out. I went to my local "Star Auto Parts" because they had guys that look up information in books and know this old stuff. I was able to get a new water pump from them. Perfect fit. It is still on my truck today.

 

May I ask where you got it? The more I search, the muddier the waters get. Greene shows the B6C-8501B (a number I also got from another vintage parts dealer) and their salesman pulled it from the box, measured it and it's the 3 7/8" impeller and the 5/8" Shaft.
Any information I can get on a 3/4" shaft size pump or rebuild kit would be greatly appreciated.

 

The water pump and pulley assemblies are directly interchangeable for and F100. In other words, a car pump and pulley will work in the place of a truck pump and pulley. The only thing to watch out for there is the pulley groove width for the belt - if I'm not mistaken, the earlier ones used a 1/2" belt.

Because of this interchangeability, it is wise to check before you order. If it has a 5/8" shaft, then you have a car pump. If it has a 3/4" shaft, then it is a truck pump.

If you have the correct pump and pulley and the belt still does not line up, then it is possible that the flange that the pulley bolts to is not installed at the correct depth and you can adjust that with a press or puller. Or you can exchange it for one that is setup correctly.

If you end up with a car pump, I would not use a stock car pulley. It is way too big for sufficient low speed cooling. Even with stock engines, it has been a problem. The bolt pattern is very common so loads of pulleys are available that will mount though the offset may not be right. If you get one with a deeper offset, you can shim it for correct alignment.

The 3 7/8" impeller is probably for a 1954 239. The entire pump is smaller on that.