In my '54 F100 I have installed a series 400 power steering gear box from Mid-Fifty's using the stock pump which I believe is from the '80's (I think). When turning there isn't any power steering help with a very loud groaning noise. The belt is tight and not slipping. Any ideas will be helpful. Thanks.

 

You are not the first one having this problem. Sen the box back for warranty to cpp. You probably got shavings from manufacturing in the directional valve.

Check for metal debris in the pump filter?

 

Thanks for the reply. Who is CPP and where is the filter located? I did not install one.

 

Sorry, you did say gear box. I should have read a little closer.

 

Yes, the gear box.

 

CPP is "classic performance parts" and they are the manufacturer and supplier of these steering boxes. To companies like Mid fifty.

What pump do you have? an eaton PS pump. Looking something like this?

DinnerHill SpeedShop: Power steering pump, final assembly

If so the filer is under the lid of the silvery container, or atleast there should be one

 

The groaning noise is the overflow valve in the pump that is open, or in other words the pump has reached the maximum pressure and then the overflow valve opens. This means you have some type of obstruction somewhere or a directional valve that is obstructed to move accurate (frome debris perhaps).

I have a friend here in Sweden that has had the exact same problems, I have tried to get a hold of him to see if he finally found the problem this winter. Sending back to state is not an option even if its a warranty. Shipping is a killer and CPP has not been that cooperative...unfortunatelly

 

Eaton P/S pump: 1953/64 Ford/Merc Passenger Cars, 1965 Galaxie/LTD, Thunderbird and some 1965/66 Fairlane/Falcon/Mustang.

 

bill thanks for the info you put up on the site it helps me and a lot of others

 

No, mine has a skinny fill neck pointing towards the driver. I really don't know what year it is. I have contacted Mid-Fifty's and they are going to let me know, everyone is at the Nationals in Tennessee , so i guess I have to wait until next week for an answer.

 

Eaton P/S pump: There were two different styles of lids. The first type did not have the raised section for the dipstick, fluid would seep out.

The later lid has what is shown in the pic. On some cars with A/C, the can was remotely mounted on the left fender apron.

If the steel reservoir is contained within the P/S pump, it's the Ford/Thompson "pencil neck" P/S pump used on 1967/77 F100/350 & Passenger Cars.

 

It appears that my pump is from a 1974 Ford Grand Torino Ranchero.

 

See pic of P/S pump in post #11. No Ranchero was a Gran Torino.

 

Yes thats the one. Thank you very much. I don't see a filter, do I need to put one in the return line?

 

I don't see the reason for it.