dday830

Dear all,

I have a delay in a Parts order for a week and have the motor apart for timming belt and Motor Mounts and cannot close it up at this point.

Was going to use the time to change the injector hoses.

Is there a way to depressurize the fuel system so I can remove the rails without pulling the Fuel pump relay and starting the motor?

Thanks in advance for any input.

DDay

Zirconocene

Separate from any kind of intervention, patience and time will do the work for you.

If you really are in a rush, you can crack the fuel pressure test port slowly, catch what escapes in rags, and depressurize the system that way. So long as you go slowly, you won't have a huge gusher of fuel come out, and there are enough threads to let you back the cap off slowly to start letting fuel out.

Cheers

Kiln_Red

The system should have little to no pressure if it has been at rest for any amount of time. To be sure, fit a paint mixing cup or the like onto the rail end & disconnect the fuel pressure port. Counter hold the rail with a spanner. The rail cap is 19mm IIRC.

Be careful not too loose the ball cap that sits inside the rail end fitting. The mixing cup should aid in that effort. If there was any pressure on the system prior to cracking open the rail, there won't be afterwards. No need to jump the fuel pump relay unless draining the tank completely from the engine compartment.

Jfrahm

Probably putting a vacuum pump on the FPR would dump the pressure. Clicking an injector with a 9v battery would also. But if it's been a while the pressure would have bled off. Still fuel to be caught though.

dday830

Thanks!

That is what Kiln_Red said as well. Have not turned it over in two months, not sure if that is the definition ot " sitting a while" ( very subjective term, If I work a 12 hour shift and have a beer at home I am sitting a while...wife however assigns the designation of too much time spent doing nothing).

BR

DDay

Zirconocene

For fuel pressure, sitting a while is on the 4-5 hour scale, not the month scale.

Cheers