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Author Topic: How much is too much black smoke.  (Read 3268 times)

August 30, 2009, 08:08:15 am

allsierra123

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How much is too much black smoke.
« on: August 30, 2009, 08:08:15 am »
I just got my 1.9td running. It idles great moves around good. But when I get going and it hits around 2000 rpm Its puts up a rather large smoke screen. It pulls pretty hard it just smokes a lot. At idle I get none. but when I rev it it puffs it out there pretty good. I have done nothing to it so far. And the only electrical parts I used to hook it up is the fuel stop and the glow plugs. I did notice there are a few connectors on that IP that I dont have hooked up But I dont know what they do. Also it seems to be worse after the engine up up to operating temp.
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Reply #1August 30, 2009, 08:13:52 am

Rabbit on Roids

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Re: How much is too much black smoke.
« Reply #1 on: August 30, 2009, 08:13:52 am »
either turn the fuel screw down, or turn your boost up so you can burn all that black.
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Reply #2August 30, 2009, 08:33:11 am

allsierra123

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Re: How much is too much black smoke.
« Reply #2 on: August 30, 2009, 08:33:11 am »
Well I need to find the fuel screw on this pump.
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Reply #3August 30, 2009, 08:45:10 am

Rabbit on Roids

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Re: How much is too much black smoke.
« Reply #3 on: August 30, 2009, 08:45:10 am »
its most likely in the same spot they have been in the last 20 years. on the back of the pump near the top. has a stop collar on the screw so you can only screw it in a little ways.
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Reply #4August 30, 2009, 04:20:26 pm

410

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Re: How much is too much black smoke.
« Reply #4 on: August 30, 2009, 04:20:26 pm »
Some of the 1.9td turbos had a vacuum line going to it along side the boost sensing line.  If it has this vacuum line going to the turbo from a solenoid on the passenger side fender well disconnect it.  When vacuum is applied to this line the wastegate opens sooner. 
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Toyota truck 4x4 with Mtdi, M-vnt gt1749va, 11mm pump, fmic, smog .216 nozzles.  Sold!
Working on 1993 4runner mtdi, gtb1756vk, 11mm pump, smog .216 nozzles, custom 1" thick adaptor plate, pd150 intake manifold.
Reply #5August 30, 2009, 07:25:26 pm

smoken u

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Re: How much is too much black smoke.
« Reply #5 on: August 30, 2009, 07:25:26 pm »
hmmmm well you say you have done nothing to it so i am assuming that the boost levels and fuelling are all at stock levels, I dont have alot of experience with the injector pumps on the 1.9L but i would imaging that those electrical connections are of some importance, another possibility is a stuck wastegate or maybe worn out injectors??
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1990 VW jetta 1.6 td, 2.5" exhaust, no muffler, governor mod 2010 edition, K&N filter. and now 66 hp and 136 ftlbs.
project 1.6 liter in the works  :)
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You don't rev a VW diesel, you increase the clatter.
Reply #6August 30, 2009, 09:31:48 pm

allsierra123

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Re: How much is too much black smoke.
« Reply #6 on: August 30, 2009, 09:31:48 pm »
Im kind of inclined to agree with you on those connections. Also it does have some sort of vacuum line on the top of the pump.
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Reply #7August 30, 2009, 09:49:01 pm

410

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Re: How much is too much black smoke.
« Reply #7 on: August 30, 2009, 09:49:01 pm »
Don't disconnect the line on the top of the pump.  Thats your lda and it's a pressure line not a vacuum line.  Check to see if you have two lines going to the turbo.  If there is two, the small one is a vacuum line designed to reduce boost pressure under light load conditions.   

Also, sounds straight forward but make sure your air filter is clean.  A severely plugged air filter can cause lots of smoke.
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Toyota truck 4x4 with Mtdi, M-vnt gt1749va, 11mm pump, fmic, smog .216 nozzles.  Sold!
Working on 1993 4runner mtdi, gtb1756vk, 11mm pump, smog .216 nozzles, custom 1" thick adaptor plate, pd150 intake manifold.
Reply #8August 30, 2009, 10:07:00 pm

allsierra123

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Re: How much is too much black smoke.
« Reply #8 on: August 30, 2009, 10:07:00 pm »
yeah there are 2 lines on the waste gate.
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