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
http://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.
(http://i261.photobucket.com/albums/ii49/BogusSVO/How%20to/how%20to%202/DSCF4457.jpg)
Next is to slightly loosen the cover bolts around the top, just a little
(http://i261.photobucket.com/albums/ii49/BogusSVO/How%20to/how%20to%202/DSCF4459.jpg)
Then workings in steps around the cover remove all 6 bolts, so the spring and puck and diaphragm are exposed
(http://i261.photobucket.com/albums/ii49/BogusSVO/How%20to/how%20to%202/DSCF4460.jpg)
The rip in the diaphragm.
(http://i261.photobucket.com/albums/ii49/BogusSVO/How%20to/how%20to%202/DSCF4461.jpg)
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
(http://i261.photobucket.com/albums/ii49/BogusSVO/How%20to/how%20to%202/DSCF4465.jpg)
now replace the base and align the bolt holes up and squeeze the unit together, so the bolts can be started.
(http://i261.photobucket.com/albums/ii49/BogusSVO/How%20to/how%20to%202/DSCF4466.jpg)
In a star pattern work the 6 bolts down equally
Till the cap is square on the base and all the bolts are snug.
(http://i261.photobucket.com/albums/ii49/BogusSVO/How%20to/how%20to%202/DSCF4467.jpg)
Now your ready to install the AFPR back on the fuel rail.
Make sure to check your fuel pressure setting.
I have one of those on my car.Love it.Now I know how o fix.Hopefully I won't need to,though.
this one is about 10 years old and been swapped onto may 2.3T engines/cars over the years...