One last 69 P/S Pump ? [Archive] - Chevelle Tech

: One last 69 P/S Pump ?


Bunz-T
Jan 8th, 08, 5:27 PM
In removing my 69 sb p/s pump from my parts car I find it has a male outlet for the high pressure hose. The pump I have bought has a female. In pulling both outlets out I find the internal "plungers" to be the same only reversed. Will it operate on a BB motor just as well either way? The hose I bought is set up to go on the male fitting. It came with a nipple to use.

Yeah I know not correct but half the money. The BB pump that will fit the brackets from Autozone for $72 is certainly a good value too.

JIML82
Jan 8th, 08, 8:52 PM
The correct way for the flow control plunger to be installed is with the hex screw end to go in first.

So first you install the spring, then the plunger, then the male or the female discharge fitting.
http://i2.photobucket.com/albums/y38/JIML82/P-PumpFlowCntrlValve.jpg
JIML82

Bunz-T
Jan 8th, 08, 10:26 PM
Jim Would that be true whether you used the male or female outlet fitting. When I disassembled the SB with the male fitting the plunger was reversed from what it was on the pumps with the female. What I guess I am asking is should the larger end of the plunger be to the outside no matter which fitting is used?

1badss396
Jan 9th, 08, 12:33 AM
I am stumped:yes:

JIML82
Jan 9th, 08, 8:17 AM
The Control Valve Assembly #6 in the drawing only goes in the pump one way. Large end back toward the Connector and Fitting Assembly #24. The hex end with the screen must be in toward the pump.

JIML82

Bunz-T
Jan 9th, 08, 12:47 PM
Here is a pic of my confusion. This is how the plunger and male fitting came out of a 69 SB pump that was on a complete engine in a car. Here are my problems.

1. Cannot find a hose with two male fittings.
2. The hose I bought has a female fitting on the hose for the pump. It comes with a nipple to use. That puts the hose a little close to the exhaust manifold.

If I could find a hose with two male fittings this would go away. Is the application in the pic wrong for a male fitting and if it is will it work with the plunger reversed?

mac762
Jan 9th, 08, 2:28 PM
I don't know if this helps, but O' Rielys will make you a high pressure hose from scratch. My friend had em make him one a while back.

vrooom3440
Jan 9th, 08, 5:31 PM
Here is a pic of my confusion. This is how the plunger and male fitting came out of a 69 SB pump that was on a complete engine in a car. Here are my problems.

1. Cannot find a hose with two male fittings.
2. The hose I bought has a female fitting on the hose for the pump. It comes with a nipple to use. That puts the hose a little close to the exhaust manifold.

If I could find a hose with two male fittings this would go away. Is the application in the pic wrong for a male fitting and if it is will it work with the plunger reversed?
Yep, that is a picture of the older pressure control valve and outlet fitting. One of Jim's lists shows that as '66-'69 and about 900-1000 PSI. Don't see those too much anymore so Jim is thinking the normal kind of valve and outlet fitting. But I also think you have the plunger portion on the left backwards. I think the spring and plunger portions go in the same way on both pump control valve/outlet setups.

I would expect you can use whichever pressure control valve and outlet your hose is most compatible with. The later type may very well have a higher pressure setting as around 1970 they increased to around 1400 PSI. When converting to later faster ratio steering gearboxes Jim recommends using the later higher pressure variants.

The pump internals are really about the same for SB or BB so that should not be an issue.

Bunz-T
Jan 9th, 08, 6:02 PM
What a great answer. Now how about a hose with two male ends with correct crimping. I think this may be the later style fast ratio type and I woild prefer to go that way. The 70 hose shows to be that way. Would it fit?

vrooom3440
Jan 9th, 08, 7:13 PM
Lessee if I understand right...

You have both a new pump and a new hose. And it sounds like they are correct for each other?

And your real confusion arises from finding a different fitting on your old pump? The one I presume you were not going to use since you bought a new one?

If this is the case just use the new pump and new hose and you are good to go.

If it is instead the case that your new hose is correct for the old pump fitting then you can:

A) go exchange the hose for a later year hose which should be compatible with the new PS pump fitting. Just specify the same BB/SB configuration in the later year as you are running and it should fit just fine. For '69 and later they were all long water pump so everything is in the same spots.

B) swap the pressure control valve and outlet fitting pieces from the old pump into the new pump. I would probably grab the new pumps O-ring and move it to the old hard parts as part of the swap to make sure you do not get a leak. This should all bolt up and go. Just note your pressure is lower in case you ever upgrade the steering gearbox and need more.

1badss396
Jan 10th, 08, 12:54 AM
Oh no now your gunna confuse John for sure:yes: LOL