Author Topic: It never ends, now the injector returns are leaking.  (Read 4352 times)

February 08, 2012, 11:23:35 pm

rabbitman

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It never ends, now the injector returns are leaking.
« on: February 08, 2012, 11:23:35 pm »
Yup, I couldn't get one injector to stop leaking where the halves join so I mixed parts, got it to seal and got the spray right......installed it in the engine and it leaks pretty bad at the nipple base.

So is there a way to get it to seal again or am I back at square one?

P.S. I did study it closely to verify it's not just the hose leaking, I blew it dry and could see that the diesel formed at the base of the nipple rather than run down to the base.

I'd try to fix it but if someone has a good method I'll try that rather than mess it up trying something that doesn't work.


'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN

Reply #1February 09, 2012, 12:18:52 am

Vincent Waldon

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Re: It never ends, now the injector returns are leaking.
« Reply #1 on: February 09, 2012, 12:18:52 am »
You could try (gently) lapping the halves, if you're sure that's where they are leaking:

http://vincewaldon.com/index.php?option=com_content&task=view&id=20&Itemid=28
Vince

Edmonton, Alberta, Canada
2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta

Reply #2February 09, 2012, 11:33:31 pm

rabbitman

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Re: It never ends, now the injector returns are leaking.
« Reply #2 on: February 09, 2012, 11:33:31 pm »
The halves is where is WAS leaking, now it's the base of the nipples and it's a really bad leak. I can blow it off and watch diesel re-wet it in less than 10 seconds.
'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN

Reply #3February 09, 2012, 11:45:46 pm

Vincent Waldon

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Re: It never ends, now the injector returns are leaking.
« Reply #3 on: February 09, 2012, 11:45:46 pm »
Normally I don't believe in spackle, but I've used JB Weld to fix AAZ injector nipples broken using a socket that was too narrow... the area is under relatively low pressure and temperature, and the fix lasted 4 years till the car was sold.
Vince

Edmonton, Alberta, Canada
2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta

Reply #4February 10, 2012, 12:02:31 am

rabbitman

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Re: It never ends, now the injector returns are leaking.
« Reply #4 on: February 10, 2012, 12:02:31 am »
Well I tapped on the end of the nipple and it lowed down to where I have to study it really close to see any wetness appear.

Now that same injector must be popping later than the rest since the miss at idle doesn't change when I crack it.........and a different injector is popping too soon and clacks more than the rest, even gets quiet when I crack that one.......yup it never ends. I shoulda just bought new injectors in the beginning.
'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN