82 Fuel pressure??

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Feb 24, 2013 | 01:25 AM

alconk

Thread Starter

Melting Slicks

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82 Fuel pressure??

I just tried increasing the fuel pressure in my 82 and wherever I set it I only got 10lbs?? Just to make sure as you turn in the spring to increase the spring tension that increases the pressure right?? Sounds like maybe the pump is weak??

Feb 24, 2013 | 04:13 AM

Ibanez540r

Drifting

Joined: Oct 2012

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From: Medina Ohio

If you are not getting any adjustment out of the regulator, the diaphragms are likely bad and need rebuilt.

Did you try the front and back?

Last edited by Ibanez540r; Feb 24, 2013 at 04:20 AM.

Feb 24, 2013 | 09:52 AM

rmm82

Instructor

Joined: Dec 2009

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From: USA

Did you install a 85 high pressure fuel pump (EP241/GM#25116163)?

Feb 24, 2013 | 10:50 AM

hugie82

Safety Car

Joined: Mar 2007

Posts: 3,652

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From: Bridgewater nj

Quote:

Originally Posted by Ibanez540r

If you are not getting any adjustment out of the regulator, the diaphragms are likely bad and need rebuilt.

Did you try the front and back?

I never did it but I thought only the rear had the pressure regulator?

Feb 24, 2013 | 10:55 AM

jdp6000

Melting Slicks

Joined: Jul 2005

Posts: 2,740

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From: Aurora Ontario

Quote:

Originally Posted by hugie82

I never did it but I thought only the rear had the pressure regulator?

The pressure is read between the two. Correct only the rear has the spring.

J

Feb 24, 2013 | 10:56 AM

Wrecked82

Le Mans Master

Joined: May 1999

Posts: 6,692

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From: Texas

Quote:

Originally Posted by hugie82

I never did it but I thought only the rear had the pressure regulator?

The regulator is only in the rear, driver side TBI.

Feb 24, 2013 | 12:42 PM

alconk

Thread Starter

Melting Slicks

Joined: Jun 2011

Posts: 2,096

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Quote:

Originally Posted by Ibanez540r

If you are not getting any adjustment out of the regulator, the diaphragms are likely bad and need rebuilt.

Did you try the front and back?

THey were replaced last fall. My pump is the stock 82 unit. Gonna replace the pump now.

Feb 24, 2013 | 12:48 PM

rmm82

Instructor

Joined: Dec 2009

Posts: 199

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From: USA

Don't forget to replace the short hose that connects the fuel pump to the line (inside the tank) with a high pressure hose. Otherwise you'll just blow out the old one.