Topic: Restoring a 1968 1/2 428CJ water pump

[RoyceP]

So I got the rebuild kit from Dead Nuts On, also the bearing installation tool. I have a hydraulic press and any typical accessories for it including blocks and bearing collars etc.

What I can't seem to figure out is where to start. Any help is very much appreciated! I don't want to start by ruining something. I suspect it is well within my capabilities if I only knew what to do first.

I checked for videos, online instructions, etc and seem to be finding nothing. Here are what I found in the Master Parts catalog and the DNO website:

[Bob Gaines]

So I got the rebuild kit from Dead Nuts On, also the bearing installation tool. I have a hydraulic press and any typical accessories for it including blocks and bearing collars etc.

What I can't seem to figure out is where to start. Any help is very much appreciated! I don't want to start by ruining something. I suspect it is well within my capabilities if I only knew what to do first.

I checked for videos, online instructions, etc and seem to be finding nothing. Here are what I found in the Master Parts catalog and the DNO website:

  I know you are more than capable. I can't give where to start direction other then I would try Jack@ Dead Nuts On given they sell the parts and do rebuilds. I would call but no doubt a email will work too. I am sure given they sell the parts that a where to start question would not be a issue to answer.

[RoyceP]

I hate to bother Jack because I know he is pretty busy. I might do that if no one here has the process steps to take.

  I know you are more than capable. I can't give where to start direction other then I would try Jack@ Dead Nuts On given they sell the parts and do rebuilds. I would call but no doubt a email will work too. I am sure given they sell the parts that a where to start question would not be a issue to answer.

[67350#1242]

You might review this video - different pump but the basics should be the same.

[Bob Gaines]

I hate to bother Jack because I know he is pretty busy. I might do that if no one here has the process steps to take.

Just blame on me . Tell him Gaines said to call.

[RoyceP]

Looks good - thank you!

You might review this video - different pump but the basics should be the same.

[RoyceP]

After watching that video I decided I knew how it went together, therefore I knew how to take it apart. It went pretty easily coming apart.

First step is to remove the rear cover. I am rebuilding two pumps, one came off easily the other one I broke off two bolts.

Then set the hydraulic press up to support the casting on either side and to press out the bearing cartridge and impeller shaft together. I used a 1/2" Grade 8 bolt about 4 inches long to push the shaft out.

It looks like this:

[RoyceP]

I caught the shaft in one hand as I worked the press pump handle with the other hand. After that I opened my bench vise enough so the casting is supported by the machined surface where the access plate goes. I used an 11/16" Power Kraft deep socket and a rubber faced dead blow hammer to knock the seal out.

[RoyceP]

With the disassembly complete I was surprised to find two sizes of water pump impellers. One is 3 1/2" diameter, the other is 4 1/2" diameter. Both appear to be OEM. The one from Dead Nuts On is stamped steel - here are Jack's comments:

This is a service stamped steel water pump impeller for the following Ford engines:
352, 360, 390, 410, 427, 428, 428 PI, 428 CJ, 428 SCJ (FE Series engines)

* Ford originally used a larger cast iron impeller (not available) that was more efficient than this generic stamped steel impeller at high RPM's.

[RoyceP]

Next step will be to soak the castings in Evaporust overnight. Tomorrow will be re - assembly day.

[RoyceP]

Well only one would fit in the plastic tub so I used mechanical means to clean out the bearing and seal bores on the other one.

The tool from Dead Nuts On worked great for installing the bearing / shaft assembly. The side that is not counterbored is used to push the bearing in place flush with the casting. The short shaft goes towards the front of the car. As always parts that are pressed together are greased first. I use Mobil #28 on virtually everything.

[RoyceP]

Next the water pump shaft is clamped in the vise with the casting resting on the aluminum jaws. The seal is greased up prior to installation. Then the DNO tool, using the recessed side this time, is used with a plastic faced dead blow mallet to install the seal. 

[RoyceP]

Next the impeller is greased and installed. There is a rectangular block of steel used to press the impeller on the pump shaft until it is flush. The other end of the shaft is resting on the block of steel on the trunnion of the press.

[RoyceP]

The fan / pulley fitting is greased and pressed on next. The rectangular block is used to support the end of the shaft. An 11/16" Harbor Freight impact socket was used to press the flange in place. I used a 5/16" square lathe cutting bit as a go / no go gauge to get the flange exactly where the original had been.

[RoyceP]

Form - A - Gasket #2 was used on both sides of the gasket, then the cover plate was installed.