Leaking power steering pump- 1956 312

This area is for posting questions/information concerning 1955-57 year Thunderbirds NO FOR SALE POSTINGS

Moderator: Joe Johnston

Post Reply
Jim G
Posts: 69
Joined: Sun Jan 05, 2020 1:25 am

Leaking power steering pump- 1956 312

Post by Jim G »

Good evening all— Well I had my mechanic friend change the filter and fluid in my power steering reservoir -And new belt. Now it leaks badly from under side of reservoir And outlet line on pump “band joe” fitting seals. I have ordered a seal kit from MAC that’s due here tomorrow. CAN I REMOVE THE RESERVOIR COVER BOLT AND THAT LIFTS OFF FOR ME TO PUT NEW SEALS UNDER IT- and remove the pump line fittings to reseal -WITHOUT REMOVING THE PUMP FROM THE ENGINE ATTACHMENT?? Thanks in advance— And I guess It isn’t all that difficult to remove if I must. And the reservoir sits tilted inward a little bit too- Not level- maybe to short of drive belt? I have seen this on a few other Birds too.
Also with all my high flow water pump and thermostat install complete- she runs abit warm when idling along - like in the ice cream Carry out order line up.??!! And only a 78 degree warm day.. Any thoughts about that? One Bird owner in our Club said maybe timing is off but it runs good and no pinging..?
Thanks in advance—- Jim G

User avatar
Haz567
Posts: 176
Joined: Thu Mar 02, 2017 1:40 pm
Location: Southeast Kentucky

Re: Leaking power steering pump- 1956 312

Post by Haz567 »

Try a 1" longer belt to make it sit flatter. The belt mentioned in CTCI texts makes the unit sit with a tilt down towards the center which may be "correct" but to my eye does not make it look good.

Wish I could help w/ the over heat; could be a host of things.

User avatar
Alan H. Tast
Posts: 3174
Joined: Wed Aug 20, 2003 10:52 pm
Location: Omaha, NE

Re: Leaking power steering pump- 1956 312

Post by Alan H. Tast »

Bite the bullet - remove the pump with the bracket attached to it - and redo the seals on a workbench. JMHO.
Alan H. Tast, AIA
Technical Director/Past President,
Vintage Thunderbird Club Int'l.
Author, "Thunderbird 1955-1966" & "Thunderbird 50 Years"
1963 Hardtop & 1963 Sports Roadster

CSPIDY
Posts: 240
Joined: Sat Jun 25, 2016 7:10 am

Re: Leaking power steering pump- 1956 312

Post by CSPIDY »

Did it leak before the belt was changed?
A longer drive belt will make the reservoir sit at more of an angle. You would need a shorter belt to make it sit more leval.
If fluid is leaking out of the cap from sitting on too steep of an angle, new seals won’t help.
As for over-heating when idling, you may not have any flow of coolant when the engine is idling.
Do you have the original spacer behind the water pump? if so you should replace it with Chris’s high flow spacer.
Good luck
57 D code Colonial White
1928 Model A Tudor
2k MR2 Spyder
61 Willys Pickup (project)

Wise man once told me, "you don't know what you don't know"

West Newton, PA

User avatar
paul2748
Posts: 1395
Joined: Sun Mar 15, 2009 12:23 am
Location: Northeastern New Jersey

Re: Leaking power steering pump- 1956 312

Post by paul2748 »

What was used for replacement fluid? If Power Steering Fluid was used, that may be the cause of the leak. Ford used ATV. Power Steering Fluid has a different composition and can cause leaks where none existed before.
1956 Fiesta Red 312
1954 Ford Victoria 312
1948 Ford Convertible Street Rod 302

Post Reply