Spring info power steering pump - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old Apr 3rd, 19, 09:50 AM Thread Starter
Join Date: Nov 2018
Posts: 3
Spring info power steering pump

Hello, I have a 69 with hydro boost and close ratio z28 metric gear box. I am configuring the power steering pump following David Pozzi's website directions. I am a little confused now since I purchased a new pump, when I took the pressure control valve apart there was no shims and a way shorter spring then stock. The new spring has same dia and feel or stiffness by touch so I am assuming same rate. Am I to think they pitched the shims to save on mfg cost, and have a short spring with the same rate to increase flow. I.e "less resistance" with enough pressure to run the system.

I believe the thing to do to run my particular set up is open up pump outlet fitting "increase volume" and use my old spring the longer one with "no shims" for "increased pressure". Flow should incrementally go up and pressure should go up to better for running the added hydro boost system and close ratio box.

Any advice is appreciated....

Update; confusion averted I put a fish scale on the springs and the yield the same psi at their compressed length. Moving on...

Last edited by J.P.; Apr 4th, 19 at 08:17 AM.
J.P. is offline  
Sponsored Links
post #2 of 2 (permalink) Old Apr 4th, 19, 10:29 PM
David Pozzi
davidpozzi's Avatar
Join Date: Nov 1999
Location: Central California, USA
Posts: 10,109
Re: Spring info power steering pump

Newer pumps do not use shims and are locked in place not fully seated with loctite. It may have enough pressure as-is. If you do change the pressure setting, measure from the "nut" shoulder to the body and vary shims based on that dimension. There are different length pressure valve bodies. I would not interchange any parts between them.

A .140" restriction is common for a fast ratio box. If yours is close to that it may be OK as-is.

Check my web page for First Gen Camaro suspension info:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

67 RS 327 original owner. 1965 Lola T-70

Last edited by davidpozzi; Apr 4th, 19 at 10:48 PM.
davidpozzi is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
Power steering pump bracket (rear) bucko Engine 16 Mar 5th, 19 04:58 PM
1968 396/375 power steering pump pulley # 3873847DH BBCMUSCLE Restoration Corner 0 Sep 25th, 18 10:46 PM
Power Steering Pump Wigman87 Engine 5 Aug 18th, 18 10:15 AM
Are jets my next step? 4Speed67CamaroRS Engine 19 Apr 10th, 18 10:37 AM
Power steering hose to pump DT LSx Swap 5 Dec 19th, 17 04:34 PM

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome