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How to repair a Kirban Adjustable Fuel Pressure Regulator

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BogusSVO

10+ Year Contributor
5,891
318
Jul 1, 2009
Pensacola, Florida
How to repair a Kirban Adjustable Fuel Pressure Regulator

I had issues with mine pouring fuel from the vacuum line into the intake, ripped diaphragm.

The first thing is to find a replacement diaphragm. I did at
Kirban Performance - Buick Grand National Parts, T-Type, Turbo T, GNX Parts, Chevrolet Chevy Corvette Parts, Ford Mustang Parts, Pontiac GTO Parts www.kirbanperformance.com

This was the only place that had them after calling several Kirban dealers.

$20 for the part and $9 for shipping I had one.

Now remove the AFPR from the car, and into the shop with it.

A set of allen wrenches is all that is needed, along with the new parts.
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Next is to slightly loosen the cover bolts around the top, just a little
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Then workings in steps around the cover remove all 6 bolts, so the spring and puck and diaphragm are exposed
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The rip in the diaphragm.
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Pick up the cap and place the puck then the spring and the new diaphragm on top, then slide all 6 bolts through the cap and diaphragm
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now replace the base and align the bolt holes up and squeeze the unit together, so the bolts can be started.
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In a star pattern work the 6 bolts down equally
Till the cap is square on the base and all the bolts are snug.
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Now your ready to install the AFPR back on the fuel rail.
Make sure to check your fuel pressure setting.
 
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