Sounds as if Joe knows what he is talking about. I was gonna guess
along similar lines. If you have time check Jim Sheas Power Steering Info
pages: http://www.chevelles.com/techref/ftecref29.html There are many
links to follow & he may touch on the info you need. Or you might email him
directly. He is a retired GM suspension/steering engineer and seems to have
all the answers when it comes to P/S.On 7/23/07, tech <[EMAIL PROTECTED]> wrote:
Not sure if this messages went out or not... Microsoft Outlook crashed as I sent the message. The engine and pump is from a 1994 truck but the suspension, steering box and subframe is from a mid-70's (1974) Chevrolet Nova... Any ideas? <http://www.granitecityperformance.com/> Granite City Performance custom engineered competition components ------------------------------ *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *tech *Sent:* Monday, July 23, 2007 18:32 *To:* 'The Chevelle Mailing List' *Subject:* Re: [Chevelle-list] Power Steering The car is a late 30's early 40's street rod. The pump is from a 1994 truck, the gearbox, front suspension and subframe is from a mid-70's Nova. <http://www.granitecityperformance.com/> Granite City Performance custom engineered competition components -----Original Message----- From: [EMAIL PROTECTED] [ mailto:[EMAIL PROTECTED]<[EMAIL PROTECTED]>] On Behalf Of Joe Sent: Monday, July 23, 2007 17:46 To: 'The Chevelle Mailing List' Subject: Re: [Chevelle-list] Power Steering You don't mention what kind of hot rod your friend has, but anything Chevelle or smaller will be pretty squirrelly with a truck steering box. The amount of assist available has to do with the valving in the box. Reducing pump pressure or return flow is the wrong approach- keep the stock pump and put in the correct box- problem solved. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]<[EMAIL PROTECTED]>] On Behalf Of tech Sent: Monday, July 23, 2007 2:55 PM To: Chevelle-list@chevelles.net Subject: [Chevelle-list] Power Steering A friend of mine has been having trouble with the power steering in his hot rod for a long time. The assist is way too much and driving the car on the highway can be very scary because of it. He put in the shim kit in the back of the pump and that helped a little. He then installed a flow control valve in the return line and that helped a lot but overheats the fluid. After he boiled the fluid out of the pump, I finally convinced him to put on a new (rebuilt) pump. With the new pump the steering is sticky when the fluid is cold, mostly to the right and still has way too much assist. I suggested he should raise the wheels off the ground and turn it from lock to lock a few times to purge any trapped air. He is going to try putting the shim kit back in too. Is this a sign of a failing gearbox or could there be something else wrong? He is using a pump and gearbox from a 1994 Chevrolet truck. G r a n i t e C i t y P e r f o r m a n c e custom engineered competition components
-- Rick Schaefer 72 TPI El Camino
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