Author Topic: Diesel knock? - NOW FIXED!!!!!!!  (Read 86754 times)

Reply #30May 26, 2011, 02:35:30 pm

745 turbogreasel

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Re: Diesel knock? - NOW FIXED!!!!!!!
« Reply #30 on: May 26, 2011, 02:35:30 pm »
Wow, mine always seem to crack after even a slight bend.

Reply #31May 26, 2011, 07:16:07 pm

rabbid79

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Re: Diesel knock? - NOW FIXED!!!!!!!
« Reply #31 on: May 26, 2011, 07:16:07 pm »
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well its fixed and all is well. That is funny that it ran
More like shocking! :o

I wonder about the physics of that.  Which cylinders were switched around?
'15 WRX
Parts for 2.0 TD build - Now looking for suitable car to put it in.

Reply #32May 27, 2011, 09:41:02 am

R.O.R-2.0

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Re: Diesel knock? - NOW FIXED!!!!!!!
« Reply #32 on: May 27, 2011, 09:41:02 am »
surprising it didnt break a ring, or blow a head gasket.. theres no way it was running right..
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #33May 27, 2011, 09:44:47 am

macka

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Re: Diesel knock? - NOW FIXED!!!!!!!
« Reply #33 on: May 27, 2011, 09:44:47 am »
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well its fixed and all is well. That is funny that it ran
More like shocking! :o

I wonder about the physics of that.  Which cylinders were switched around?

One thing I have learnt is that even though physiques sometimes says no, it happens anyways.
Quote from: Vincent Walden
I do know that I drive torque,  while listening to my friends prattle on about horsepower.

Reply #34May 27, 2011, 06:07:27 pm

regcheeseman

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Re: Diesel knock? - NOW FIXED!!!!!!!
« Reply #34 on: May 27, 2011, 06:07:27 pm »
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theres no way it was running right..

now you'd think so wouldn't you, and while it wasn't running right, it ran quite happily!

it started easily, it idled quite smoothly and revved happily

it only made 14 psi, clattered badly and billowed white smoke

I didn't find the fault so I'm unsure which pair were swapped

Reply #35May 28, 2011, 01:19:35 pm

crezz

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Re: Diesel knock? - NOW FIXED!!!!!!!
« Reply #35 on: May 28, 2011, 01:19:35 pm »
it is quite shocking how it did run with them wrong but it did, wasnt full of power but its not as tho it had none, but since its back to normal, it goes really well  ;D i suppose we missed the problem as the lines are clamped together in pairs, so came off that way and back on that way, silly really that we didnt check this before hand, but out of all the people that had looked at the motor and had suggested problems, nobody spotted or thought aboutthe firing order. it wasnt like it was missing tho, just an allmighty clatter!

Reply #36May 28, 2011, 02:25:13 pm

Mark(The Miser)UK

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Re: Diesel knock? - NOW FIXED!!!!!!!
« Reply #36 on: May 28, 2011, 02:25:13 pm »
Interestingly, the clatter was probably from the lines that were injecting correctly, but needing to do so too far advanced, but one or more of the others  steaming off the diesel from the surfaces relatively quietly... maybe 8)
Mark-The-Miser-UK

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Reply #37May 28, 2011, 02:49:18 pm

pointynoggin

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Re: Diesel knock? - NOW FIXED!!!!!!!
« Reply #37 on: May 28, 2011, 02:49:18 pm »
I would guess the swaped lines were injecting at the bottom of the compression stroke and pre-igniting at the top making the knock, same as leaky nozzles.?
1991 Jetta 1.6TD, Giles Superpump,

Reply #38May 28, 2011, 04:05:27 pm

rabbid79

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Re: Diesel knock? - NOW FIXED!!!!!!!
« Reply #38 on: May 28, 2011, 04:05:27 pm »
Quote
Interestingly, the clatter was probably from the lines that were injecting correctly, but needing to do so too far advanced, but one or more of the others  steaming off the diesel from the surfaces relatively quietly... maybe
Quote
I would guess the swaped lines were injecting at the bottom of the compression stroke and pre-igniting at the top making the knock, same as leaky nozzles.?
I like both theories.  This is specifically why I was curious which two cylinders were swapped.  I guess we could figure out what would happen if 1&2, 2&3, or 3&4 were mixed.
'15 WRX
Parts for 2.0 TD build - Now looking for suitable car to put it in.

Reply #39May 29, 2011, 12:57:05 am

745 turbogreasel

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Re: Diesel knock? - NOW FIXED!!!!!!!
« Reply #39 on: May 29, 2011, 12:57:05 am »
I got my caddy to start with the pump 180 out, and it smoked and knocked like a demon from hell.

Reply #40May 29, 2011, 09:39:22 pm

wdkingery

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Re: Diesel knock? - NOW FIXED!!!!!!!
« Reply #40 on: May 29, 2011, 09:39:22 pm »
I got my caddy to start with the pump 180 out, and it smoked and knocked like a demon from hell.

hahahah love it.

i got my turd to start with the the IP set at .10 mm.. and it smoked and missed like hell but would do 50 mph