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Author Topic: New to Me 86 Jetta 1.6TD White Smoke  (Read 4746 times)

February 20, 2016, 10:06:54 am

curt5446

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New to Me 86 Jetta 1.6TD White Smoke
« on: February 20, 2016, 10:06:54 am »
Hi all,

I just purchased an 86 Jetta turbo diesel from my neighbor for $800. He rebuilt the engine top to bottom, new injection pump, turbo, clutch, everything. The car has been idled and only driven down the street and back.

The car starts hard and pours white smoke out of the exhaust and is clacking (injector clack) rather badly. The engine smooths out slightly when I pull the advance cable but never runs well.  The smoke reeks of unburnt diesel.

In my experience with old OM617 Benz diesels this is either an injection pump timing issue or the injectors themselves. He replaced the injector nozzles however, did not have them pop tested or balanced.

Assuming he timed the pump correctly, I should be looking at injectors correct?

Any insight would be greatly appreciated!

Thanks!
Curt


'86 Jetta GL Sedan 1.6 TD 119k miles on the chassis engine rebuilt at 119k

Early 99 Ford F350 crew cab long bed dually 7.3 Powerstroke

1975 Mercedes 300D

Reply #1February 21, 2016, 10:32:58 am

the caveman

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Re: New to Me 86 Jetta 1.6TD White Smoke
« Reply #1 on: February 21, 2016, 10:32:58 am »
I would check the  pump timing including cam  first
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1970 Type 3 fastback
1972 Renault 12
1971 Super Beetle 140 HP 159 ft lbs
1987 Fox
1989 TD Jetta
1990 Fox
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Reply #2February 21, 2016, 11:27:02 am

masterbeavis

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Re: New to Me 86 Jetta 1.6TD White Smoke
« Reply #2 on: February 21, 2016, 11:27:02 am »
Pump timing, and get the injectors pop tested.

 I normally have my pumps pushed as far against the motor as they will go, they seem to run the best there.

If pulling the advance makes the motor quieter, I'd give the pump a nudge towards the engine. If you don't have the proper tools to check timing (borrow from neighbor??), you can set the pump by ear. Loosen the bolts, crack the lines at the pump and rotate.  Snug up lines, start car, tweak pump as necessary.  My diesels have pumps with unknown mileage, I've never been happy with them set to spec, I wind up advancing as far as I can without resetting the pump 1 tooth off (which is my next step on one motor)
81 Caddy Diesel, 84 Jetta Diesel, 98 Jetta GLS, 99 Jetta GLX,, 95 Golf.

Reply #3February 21, 2016, 02:49:10 pm

269st

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Re: New to Me 86 Jetta 1.6TD White Smoke
« Reply #3 on: February 21, 2016, 02:49:10 pm »
Does anyone know about the timing belt cover update for the 2011/2012 Amaroks??? Yes I need a new engine as the serpentine belt went through the the engine... Thanks...


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Reply #4March 06, 2016, 10:34:31 pm

fatmobile

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Re: New to Me 86 Jetta 1.6TD White Smoke
« Reply #4 on: March 06, 2016, 10:34:31 pm »
Get clear fuel lines. Air in the fuel will cause white smoke.
 Has the water separator been removed yet?
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Reply #5March 19, 2016, 11:52:09 am

curt5446

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Re: New to Me 86 Jetta 1.6TD White Smoke
« Reply #5 on: March 19, 2016, 11:52:09 am »
There is still a section of clear fuel line where it goes into the pump. I replaced the fuel line from the tank pickup to the fuel filter bypassing the water separator. I had air in the lines when I first got it and took care of that right away.
'86 Jetta GL Sedan 1.6 TD 119k miles on the chassis engine rebuilt at 119k

Early 99 Ford F350 crew cab long bed dually 7.3 Powerstroke

1975 Mercedes 300D

 

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