Author Topic: Injector return lines leaking and plug too - help!  (Read 4472 times)

April 19, 2007, 03:36:10 pm

rallydiesel

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Injector return lines leaking and plug too - help!
« on: April 19, 2007, 03:36:10 pm »
I recently removed the injector to do a comp. test. The injector return lines are in pretty sad shape. A couple are barely long enough and really stiff. They are leaking pretty badly.

Anyway, my question is:

Is there supposed to be a rubber cap on one of injector one's return nozzles? Because that is leaking as well. Is there some place to get this cap?
2006 Jetta TDI - gtb1749v, Malone 2, Frank's Titan 2 cam, VR6 clutch....
1991 Jetta TD - sold :(
2001 Golf TDI - Son's
1981 Rabbit - BEW tdi swap project

"ONCE YOU GO CLACK, YOU NEVER GO BACK"

Reply #1April 19, 2007, 06:36:37 pm

Doug

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Injector return lines leaking and plug too - help!
« Reply #1 on: April 19, 2007, 06:36:37 pm »
The last injector in line from the pump has a plug on the low pressure side. If you can't find one make one temporarily from plastic fuel line that you heat to melting then squeeze together with a pair of pliers so that it fuses closed. Cut it off a centimetre from the fused part and stick the open end over the spigot on the injector body.

Reply #2April 19, 2007, 09:34:56 pm

burn_your_money

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Injector return lines leaking and plug too - help!
« Reply #2 on: April 19, 2007, 09:34:56 pm »
Loosen all of the clamps and both ends of all the lines. They should fit well. Tighten the nuts and then the clamps
Tyler

Reply #3April 20, 2007, 09:04:20 am

rallydiesel

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Injector return lines leaking and plug too - help!
« Reply #3 on: April 20, 2007, 09:04:20 am »
There is a low pressure side? How do you tell the difference?
2006 Jetta TDI - gtb1749v, Malone 2, Frank's Titan 2 cam, VR6 clutch....
1991 Jetta TD - sold :(
2001 Golf TDI - Son's
1981 Rabbit - BEW tdi swap project

"ONCE YOU GO CLACK, YOU NEVER GO BACK"

Reply #4April 20, 2007, 09:06:47 am

burn_your_money

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Injector return lines leaking and plug too - help!
« Reply #4 on: April 20, 2007, 09:06:47 am »
I'm pretty sure it's all the same, as long as you have the lines hooked up in a logical order (one after the other) you should be fine
Tyler

Reply #5April 20, 2007, 10:34:20 am

jtanguay

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Injector return lines leaking and plug too - help!
« Reply #5 on: April 20, 2007, 10:34:20 am »
the low pressure side is basically the fuel return... even being low pressure, there is still a lot of fuel that flows through it.

high pressure is around 155 bar... don't want to be messing around with that too much!  :wink:


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