VWDiesel.net The IDI, TDI, and mTDI source.
Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: Dan W on August 03, 2010, 04:47:51 pm
-
I have read many posts here looking for the answer. Bought a 1998 Jetta TDI 1.9. Basket case. Sprayed black oil and carbon all over the back of the car and smoked. Replaced bad Turbo. No more oil but smoked unbelievably worse upon acceleration. Took it for a test run hoping it was just oil in the exhaust that would burn out. It didn't. Got pulled over by a State Trooper and threatened to take it off the road immediately. Took it to a qualified mechanic who tinkered with it for a couple months. Replaced an Oxygen regulator. Smoked worse. Determined injection pump running wide open. New Re-manufactured pump. I put new glow plugs in. Everything is timed in by the mechanic. Runs great. Good power. Smokes in 3rd and 5th pretty bad at 2000rpm. Not so bad a 2500 or pedal down. Is it bad air flow mix? Bad electronic regulator somewhere? Any ideas. Still covers the trunk with carbon. No oil. New Temperature sensor in radiator but it doesn't kick the fan on.
-
Black smoke is generally fuel for sure... and assuming you got a good re-manufactured injection pump (who did the work??? ;) ) I'd be inclined to pull the injectors and have them pop tested as a next step. On a 1998 if they are the originals one or more could be worn and/or misfiring.
-
Thanks for the info. I was just reading about the injectors and replacing the nozzles as a possibility. With your answer, I will definitely try it. The pump came from Rothenbacher Engineering, Mathews, NC. www.dieselVW.com (http://www.dieselVW.com) Best prices I've seen anywhere on everything. Wish I new about them before I bought the Turbo out of California for $650. I'll post results after I repair or replace injectors.
-
That place isn't known for anything but cheap pricing. He is also called prothe and there is a search function here you might want to check out. I personally wouldn't trust that pump and would see if you could get a known "good" pump to swap on before doing anything else. The injectors wouldn't be a bad idea, but it sounds like there could be a lot of damage if it was overfueled for long periods of time. Is it making boost?
-
OK. I get the cheap part. But if I am sending Rothenbacher Engineering back my factory pump, they rebuild it and send it to someone else...why would that be a bad pump. I checked a place in Ft. Lauderdale Florida, the Everglades. They wanted the same price, only they did not offer the same core return. After all, I expect that they are mostly just replacing gaskets and maybe a few limited wear items. Am I correct? I could have bought re-manufactured pump from a Volkswagen dealer for $1800.00. Any guarantee it's better than Everglades or Rothenbacher. The dealer could be getting it from these places. Even had the parts guy at VW make a comment to me about that on the Turbo I bought. VW wanted $1200.00 for the new Garret Turbo I got out of California $650. Just asking. :)
-
I don't know what you mean by "Making Boost"?
-
The turbo you replaced ... is it making boost?
The IP if he is sending them out now then that is good, but the ones he did himself have less than stellar reputation. I think in IP's you get what you pay for.
-
Oh, I got it. Yes the Turbo is great. I was initially worried about it. I bought it from www.turbochargerpros.com (http://www.turbochargerpros.com) I installed it myself and I'm a hack. When I still had smoke, I took it to a real mechanic. He said it's good. It's the injection pump you have me worried about now. I got it from what you call Prothe. It's working fine for now. What would fail is my question? Is it going to leak, fall apart, explode...
-
Is it going to leak, fall apart, explode...
Unfortunately none are out of the question. I'm surprised it even ran to be honest...
I used to work for Giles and we would get a lot of Prothe's rebuilt pumps in for a rebuild because they weren't working right. Unfortunately the pumps were not even good cores. Prothe would replace the head and rotor, camplate, pressure regulator and a lot of other parts with cheap chinese junk. Bosch camplates and head and rotors almost never wear out. Basically he just has no idea what he is doing. You are only the second person I have ever heard of that bought a pump off him and it actually worked. To be fair, I have never seen one of Prothe's TDI pumps. Lots of IDI pumps and quite a few mTDIs but no pure TDIs. His track record makes me doubt they would be any exception to his reputation though.
A diesel shop may be able to test the pump for you.
Like mentioned, I would look into the injectors next since the pump seems to be working.
Have you checked the intake manifold?
-
Boy that's some bad news on the IP. Cross my fingers it stays together. I guess I'm SOL if it comes apart. Hope you don't have anymore bad news for me. I can always drive down there with the pump and tell them to, "Shove it where the sun don't shine." I'll still be out $400+ $. Yes, I cleaned the intake, pipes, and anything else out that was oily or carbed. With the exception of a lot of oil, everything was clean. Now I'm curious about the injectors. From pictures, the TDI injectors don't look like they are two part assemblies. I know the parts guy at VW said he rarely if ever sells injectors for the old TDI like my 1.9. He couldn't tell me if they don't go bad or what. I suspect they are overpriced at the dealer and everyone gets them somewhere else.
-
Yeah they come apart...but specialized gear is needed to test 'em and to set their dual breaking pressures.
If you look in your local yellow pages under Diesel Services you hopefully can find a shop to test 'em. You'll need four new copper sealing washers when you put 'em back in.
-
Today is the first day I ran it. How long do think it will last based on past history?
-
I'm really scratching my head on this Prothe company you guys are talking about. I checked the the Better Business Bureau BBB before I place the order for this IP. Just as I do anytime I buy from someone I don't know. The company Rothenbacher Engineering, with all of it's websites listed gets an "A" rating. Over 1 million $ in sales annually and only 10 complaints in 36 months. If they are as bad as you guys say, why aren't people reporting them? I would be raising H@$l.
-
No way of knowing.
The dealer only sells new injectors AFAIK and it's a lot cheaper to just rebuild them.
Any shop that has a pop tester can rebuild TDI injectors with stock nozzles. Bosch has a unique system where you only check the one pressure and as long as it is good the other should be good. The nozzles are expensive though. They come with the IM plate that for the IDIs people sand.
Very, very few shops can check both pressures, which IMO is mandatory if installing performance nozzles.
Check out the feedback section and search for "prothe" on the net and you should find horror stories. I think that he has cleaned up his act a bit lately
-
I can't find anything when I search Prothe. Only Rothenbacher Engineering. Thanks for the information everyone.
-
http://forums.tdiclub.com/showthread.php?t=280655 (http://forums.tdiclub.com/showthread.php?t=280655)
TDIclub is full of 'em.