Doug996InKC

Is there a special tool for removing the fuel pressure relief valve? Part Nbr 993.110.217.00 It appears to be threaded.

Backstory... I'm working on a 3.4 to 3.8 rebuild. While fuel rails are out, I'm replacing the regulator, injectors, and pressure relief valve & cap. Thanks!

Mbren1979

Tire valve stem core removal tool

Althought it is a part that is almost never changed in a fuel rail. I would almost venture to change that to never ever changed

pdxmotorhead

Another trick, buy an Aluminum AN cap, it adds some safety to the shrader valve ever failing..
Free flowing fuel in the engine bay seldom goes well..

Porschetech3

Actually that Schrader valve is a size bigger than a standard tire stem Schrader valve. It is the standard size of an A/C refrigerant line Schrader valve. So an A/C Schrader valve removal tool will work perfectly.

In a pinch, I have used A/C pressure gauges and lines/fittings to test fuel pressure on those, A pressure gauge is a pressure gauge !!

Also if you can't find an anodized AN fitting, the brass A/C caps will work and be better than the plastic cap..

latonnelier

That's too funny...+1

Doug996InKC

Thanks everyone. Right after Mbren1979 reply, I hopped on Amazon for next day free delivery. $1.87 and 24 hours later, I completed this small task.

Here's the removal tool.

Here's the removal tool.

All parts purchased from Sonnen Porsche, including a new brass cap.


old set left, new set right


dry fit

Porschetech3

My bad, looks like that one is the 4mm, not the 6mm.