Fuel regulator retaining spring?.
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Senior Member
Joined: Feb 2005
Posts: 617
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From: Rochester,NY
Car: 1993 Caprice wagon "Shammoo"
Engine: tpi'd 406, with P4 ebl EBL 730 ECM
Transmission: custom "4L65" swap.
Axle/Gears: 3.42:1 with posi
Fuel regulator retaining spring?.
The adjusting screw on my fuel regulator keeps wiggling loose, dropping my fuel pressure, and making the car un-startable and or un-driveable with Afr leaned out to 19-20.
Obviously there is a big spring inside the regulator. I'm wondering if there was suppose to be a small external spring to keep tension on the bolt? Or maybe a lock nut to keep it from wiggling out?
Obviously there is a big spring inside the regulator. I'm wondering if there was suppose to be a small external spring to keep tension on the bolt? Or maybe a lock nut to keep it from wiggling out?
Joined: Nov 2008
Posts: 2,093
Likes: 175
From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: Fuel regulator retaining spring?.
The one's I've worked with have a locknut on the screw.
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