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Author Topic: Compressd Natural Gas conversion  (Read 15566 times)

Reply #30May 18, 2010, 06:55:22 pm

burn_your_money

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Re: Compressd Natural Gas conversion
« Reply #30 on: May 18, 2010, 06:55:22 pm »
I think an update is required...
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Tyler
Reply #31May 19, 2010, 05:07:26 am

macka

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Re: Compressd Natural Gas conversion
« Reply #31 on: May 19, 2010, 05:07:26 am »
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Quote from: Vincent Walden
I do know that I drive torque,  while listening to my friends prattle on about horsepower.
Reply #32May 19, 2010, 09:43:54 am

zukgod1

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Re: Compressd Natural Gas conversion
« Reply #32 on: May 19, 2010, 09:43:54 am »
Oh hell..


Well I experienced a catastrophic failure.. I do NOT believe it was linked with the CNG although the CNG may have accelerated the problem.

The timing belt broke on the previous owner, there were valve impacts on cyl #2 and #4. Well cyl #2 and #4 are now broken and cyl #3 has been beat up pretty good.

I have a big expensive pile of parts on the way to reassemble it.

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dan

99 Golf TDI (now CNG powered) , 82 TD Caddy
Reply #33May 19, 2010, 09:45:17 am

zukgod1

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Re: Compressd Natural Gas conversion
« Reply #33 on: May 19, 2010, 09:45:17 am »
Not good pictures sorry..











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dan

99 Golf TDI (now CNG powered) , 82 TD Caddy
Reply #34May 19, 2010, 09:52:48 am

burn_your_money

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Re: Compressd Natural Gas conversion
« Reply #34 on: May 19, 2010, 09:52:48 am »
Yikes. What do you figure happened?

It looks like you should get your injectors checked based on that last picture
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Tyler
Reply #35May 19, 2010, 10:32:47 am

zukgod1

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Re: Compressd Natural Gas conversion
« Reply #35 on: May 19, 2010, 10:32:47 am »
Those are "SMACK" marks from the piston getting beat up but a piece if it's self Tyler.

Thats a really bad pic but look close, to the right of the chamber from 3 down to about 5 o-clock, that piece is MIA and is the cause of what you are seeing.
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dan

99 Golf TDI (now CNG powered) , 82 TD Caddy
Reply #36May 19, 2010, 06:41:29 pm

burn_your_money

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Re: Compressd Natural Gas conversion
« Reply #36 on: May 19, 2010, 06:41:29 pm »
OHHHH.

Ouch.
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Tyler
Reply #37May 19, 2010, 07:51:13 pm

Vincent Waldon

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Re: Compressd Natural Gas conversion
« Reply #37 on: May 19, 2010, 07:51:13 pm »
A bit hard to be sure, but I see  both smack marks and a horrific amount of piston erosion??
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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 #38May 21, 2010, 11:01:44 am

truckoSaurus08

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Re: Compressd Natural Gas conversion
« Reply #38 on: May 21, 2010, 11:01:44 am »
Thats too bad. :( Was really looking forward to results. What plans do you have now?
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Reply #39May 26, 2010, 07:36:41 pm

burn_your_money

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Re: Compressd Natural Gas conversion
« Reply #39 on: May 26, 2010, 07:36:41 pm »
What do you think caused the problem? How do you think CNG accelerated the problem? I was all gung-ho to do this on my truck but I'm a bit hesitant now.
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Tyler
Reply #40May 26, 2010, 08:43:00 pm

Baron VonZeppelin

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Re: Compressd Natural Gas conversion
« Reply #40 on: May 26, 2010, 08:43:00 pm »
It may have been a time bomb anyway when you bought it.

If it was a "patch it up cheap as you can, and i'll sell it quick" kinda thing.

On something like that - any power increase would have accelerated failure. May have even been part of why it was "de-tuned" when you bought it.

Just thinking outloud.

Good wishes on the next round.
Sounds like you need a designated driver to wheel it while you tune it - don't run over top of a school teacher in her Prius out there.

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