1970- is my Power steering Control valve ball stud worn? - Vintage Mustang Forums
Vintage Mustang Forum
HomeForumGalleryClassifiedsAbout UsAdvertiseContact Us
» Auto Insurance
» Featured Product
Go Back   Vintage Mustang Forums > General Discussion > Vintage Mustang Forum
Vintage-Mustang.com is the premier Ford Mustang Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools
Old 04-16-2012, 02:55 PM   #1 (permalink)
Senior Member
 
app01's Avatar
 
Join Date: Aug 2005
Location: North Central Massachusetts
Posts: 856
Default 1970- is my Power steering Control valve ball stud worn?

1970 mach 1.

How can I determine is the Power Steering Control valve ball stud and socket worn and needs to be replaced?

When I initially start the car and turn the steering wheel I get a bang and then it does not happen again till the car is off for a while.

I have checked every part of the steering/suspension (as well as the PS cylinder where it mounted to the frame bracket). i also had the car on a lift where the car weight is still on the wheels, and having someone turn the wheel and everything seems tight.

Does it seem like it could be the stud and socket?
If so, how difficult is it to replace that? (I have looked at the Ford shop manual)

Thanks again,

Tony
__________________
Build Pics:
Boss 460/70 Mach 1: http://forums.vintage-mustang.com/mo...ld-thread.html
http://www.palmiericoncepts.com/My-M...970Boss302.htm

Current:
1970 Boss 302-May 1970, Dearborn
1970 Mach 1-Sept 1969, Metuchen
1962 Corvette

Previous:
1967 Mustang Convertible (1st car)
1970 Mach 1 (2nd car)
1989 GT
1969 Mach 1 (<29k miles,Unrestored, MCA Gold)

MCA#62598
app01 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 04-16-2012, 02:59 PM   #2 (permalink)
Senior Member
 
22GT's Avatar
 
Join Date: Jun 2009
Location: Southeastern Pennsylvania
Posts: 22,063
Default

With the right tools (NOT a 'pickle fork') it'll probably run you about 5 hours for the job of removing and rebuilding the control valve. The instructions in the Ford Shop Manual are excellent.
__________________
Amateur restorer. Well, sometimes I have been paid for it. But not right now.
22GT is offline   Reply With Quote Quick reply to this message
Old 04-16-2012, 03:15 PM   #3 (permalink)
Senior Member
 
app01's Avatar
 
Join Date: Aug 2005
Location: North Central Massachusetts
Posts: 856
Default

Thanks for the fast response.

Two questions:
1. Does it sound like that is the cause of the bang I am hearing?

2. Do you think that it needs a complete rebuild, or just replacing the sleeve and ball stud?

Thanks,
Tony
__________________
Build Pics:
Boss 460/70 Mach 1: http://forums.vintage-mustang.com/mo...ld-thread.html
http://www.palmiericoncepts.com/My-M...970Boss302.htm

Current:
1970 Boss 302-May 1970, Dearborn
1970 Mach 1-Sept 1969, Metuchen
1962 Corvette

Previous:
1967 Mustang Convertible (1st car)
1970 Mach 1 (2nd car)
1989 GT
1969 Mach 1 (<29k miles,Unrestored, MCA Gold)

MCA#62598
app01 is offline   Reply With Quote Quick reply to this message
Old 04-16-2012, 03:42 PM   #4 (permalink)
Senior Member
 
bryancobb's Avatar
 
Join Date: Oct 2009
Location: Cartersville, GA
Posts: 2,960
Default

The ball stud has a thick washer on both sides that is "cupped-out" to wrap around the ball about 1/4 of the way. These two cup washers are squeezed inward around the ball by spring tension.

When you turn the wheel, you are working the ball left and right against the spring tension and that's what makes the valve shift proportionately to direct hydraulic fluid to the ram cylinder.

The ball and washers wear together at the same rate. The SET has to be pretty badly worn to not function correctly. I would bet the BANG is just caused by rust and crud making everything BIND UP.
bryancobb is offline   Reply With Quote Quick reply to this message
Old 04-16-2012, 04:21 PM   #5 (permalink)
Senior Member
 
22GT's Avatar
 
Join Date: Jun 2009
Location: Southeastern Pennsylvania
Posts: 22,063
Default

Quote:
Originally Posted by app01 View Post
Thanks for the fast response.

Two questions:
1. Does it sound like that is the cause of the bang I am hearing?

2. Do you think that it needs a complete rebuild, or just replacing the sleeve and ball stud?

Thanks,
Tony
Replacing the ball stud requires total disassembly of the valve. It would be totally nutz to not properly rebuild the valve at that point.
__________________
Amateur restorer. Well, sometimes I have been paid for it. But not right now.
22GT is offline   Reply With Quote Quick reply to this message
Old 04-16-2012, 04:27 PM   #6 (permalink)
Senior Member
 
app01's Avatar
 
Join Date: Aug 2005
Location: North Central Massachusetts
Posts: 856
Default

Thanks for the info. It all makes sense.

So my last question for now is How do you determine that the ball stud and assembly is worn? How much movement should there be with the ball stud relative to the control valve?

I did not see anything in the Ford Shop manual.

Thanks again,
Tony
__________________
Build Pics:
Boss 460/70 Mach 1: http://forums.vintage-mustang.com/mo...ld-thread.html
http://www.palmiericoncepts.com/My-M...970Boss302.htm

Current:
1970 Boss 302-May 1970, Dearborn
1970 Mach 1-Sept 1969, Metuchen
1962 Corvette

Previous:
1967 Mustang Convertible (1st car)
1970 Mach 1 (2nd car)
1989 GT
1969 Mach 1 (<29k miles,Unrestored, MCA Gold)

MCA#62598

Last edited by app01; 04-16-2012 at 04:31 PM.
app01 is offline   Reply With Quote Quick reply to this message
Old 04-16-2012, 04:59 PM   #7 (permalink)
Senior Member
 
Join Date: Jul 2003
Location: Illinois
Posts: 1,922
Default

Some what of shot in the dark, but I would quess the idler is binding.

These can cause the sudden release POP.

It won't be the Ball Stud/Sleeve it resides in, UNLESS it has been damaged to where the Brass bushing in binding when the necessary travel is restricted--No need for restriction unless, Some Idiot Pickle forked it.

A Day, 12 Pack, Will get it done with Mechanical Knowledge, Good assortment of Tools.

3 Weeks, Many cases of , with poor mechanical ability, Buffalo socket set, Multi Screw Driver.

Dan @ Chockostang
CHOCK is offline   Reply With Quote Quick reply to this message
Old 04-16-2012, 06:00 PM   #8 (permalink)
Senior Member
 
Join Date: Sep 2006
Location: SE Wisconsin
Posts: 17,311
Default

Good info on replacing/rebuilding the ball stud etc. but seems like you should find out what causes the bang!

Slim

Maybe Chock has an idea, ..did it start all at once? Usually wear is gradual.
slim is offline   Reply With Quote Quick reply to this message
Old 04-16-2012, 09:12 PM   #9 (permalink)
Senior Member
 
app01's Avatar
 
Join Date: Aug 2005
Location: North Central Massachusetts
Posts: 856
Default

Thanks everyone for the info. I am pretty sure its not the Idler. I replaced that probably less than 5k miles ago.

I agree I need to do some more exploring upon the lift to isolate it.
__________________
Build Pics:
Boss 460/70 Mach 1: http://forums.vintage-mustang.com/mo...ld-thread.html
http://www.palmiericoncepts.com/My-M...970Boss302.htm

Current:
1970 Boss 302-May 1970, Dearborn
1970 Mach 1-Sept 1969, Metuchen
1962 Corvette

Previous:
1967 Mustang Convertible (1st car)
1970 Mach 1 (2nd car)
1989 GT
1969 Mach 1 (<29k miles,Unrestored, MCA Gold)

MCA#62598
app01 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Vintage Mustang Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are Off


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 02:40 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.