Author Topic: Ultra Low Sulfur  (Read 5097 times)

July 12, 2011, 07:17:33 am

silentdub

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Ultra Low Sulfur
« on: July 12, 2011, 07:17:33 am »
Are there any issues with running the newest Ultra Low Sulfur Diesel in the older mechanical N/A 1.5/1.6 engines?

Reply #1July 12, 2011, 07:57:27 am

VWDoc91

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Re: Ultra Low Sulfur
« Reply #1 on: July 12, 2011, 07:57:27 am »
Just the Injector Pump leaking because the seals were acclimated to previously graded LSD. All you need to do for it is to get the pump seals replaced and re-calibrated.

Reply #2July 12, 2011, 08:30:39 am

silentdub

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Re: Ultra Low Sulfur
« Reply #2 on: July 12, 2011, 08:30:39 am »
Well, the pump on this engine is original, so I will probably have it rebuilt or rebuild it myself. I never looked in to them, so not sure what it entails.

thanks, I'll keep this in mind when I get it rebuilt.


Does anyone know of a DIY for a rebuild or know of a place that does excellent work?

Reply #3July 12, 2011, 09:04:36 am

RabbitJockey

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Re: Ultra Low Sulfur
« Reply #3 on: July 12, 2011, 09:04:36 am »
if its not leaking don't do anything, mine leaked from the advance lever shaft, i replaced 1 o ring and it was fine.  and i don't know that i'd blame ulsd, pumps leaked before the swap and they will afterwards too
01 Jetta TDI 100% stock daily
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Reply #4July 12, 2011, 09:51:00 am

silentdub

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Re: Ultra Low Sulfur
« Reply #4 on: July 12, 2011, 09:51:00 am »
if its not leaking don't do anything, mine leaked from the advance lever shaft, i replaced 1 o ring and it was fine.  and i don't know that i'd blame ulsd, pumps leaked before the swap and they will afterwards too


Ya see that's not how I do things. If I am rebuilding the motor, I am not going to put a pump in that has been sitting for 5+ years in which I do not know the history of.

I'd rather send it out and have something that I can trust.

Reply #5July 12, 2011, 10:17:34 am

bajacalal

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Re: Ultra Low Sulfur
« Reply #5 on: July 12, 2011, 10:17:34 am »
I know a lot of people, including myself, who experienced problems with their injection pump (which had been working fine for hundreds of thousands of miles) within a few thousand miles after the switch to ULSD.

I run a little bit of 2 stroke oil in my diesel (250 to 1 ratio, 1 oz/2 gals) to increase lubricity.

And, I thought these things didn't keep well unless properly stored. So if it's been sitting on a shelf in somebody's garage for 5 years you might to have someone go through it.

Reply #6July 12, 2011, 01:29:34 pm

mtrans

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Re: Ultra Low Sulfur
« Reply #6 on: July 12, 2011, 01:29:34 pm »
I run a little bit of 2 stroke oil in my diesel (250 to 1 ratio, 1 oz/2 gals) to increase lubricity.

X 2 ,or 2-3% and don`t tach IP if you don`t have to.
I`ll improve my English

Reply #7July 12, 2011, 01:36:44 pm

truckinwagen

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Re: Ultra Low Sulfur
« Reply #7 on: July 12, 2011, 01:36:44 pm »
the new diesel is a much better solvent than the old stuff.

the reason you see leaks is because all the deposits filling cracks in seals, etc is washed away.

same reason you see clogged filters after switching, all the gunk in the tank comes loose and gets caught by the filter.(there was a huge rash of furnaces failing due to clogged filters when they went to ULSD for heating fuel)

its like running detergent oil in a Jimmy.

-Owen
83 Opel Kadett Diesel

Reply #8July 13, 2011, 12:17:59 pm

mtrans

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Re: Ultra Low Sulfur
« Reply #8 on: July 13, 2011, 12:17:59 pm »
Have you see what Bio can do.Huge mess.
I`ll improve my English

Reply #9July 13, 2011, 01:52:36 pm

RabbitJockey

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Re: Ultra Low Sulfur
« Reply #9 on: July 13, 2011, 01:52:36 pm »
if its not leaking don't do anything, mine leaked from the advance lever shaft, i replaced 1 o ring and it was fine.  and i don't know that i'd blame ulsd, pumps leaked before the swap and they will afterwards too


Ya see that's not how I do things. If I am rebuilding the motor, I am not going to put a pump in that has been sitting for 5+ years in which I do not know the history of.

I'd rather send it out and have something that I can trust.


if it works it works haha, if ud put it on and get ***ty mileage, or poor power, or a leak, you would know its no good and only wasted a few extra moments installing a bad pump
01 Jetta TDI 100% stock daily
81 Rabbit:TDI-M ported head, Frank06 cam, PD intake, hybrid T3 turbo, Renault intercooler, Syl20 11mm pump, light weight fw, and yellow California Clutch clutch kit

Reply #10July 25, 2011, 10:01:47 am

derekp

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Re: Ultra Low Sulfur
« Reply #10 on: July 25, 2011, 10:01:47 am »
Trevor - where did you get the seal for the advance mechanism.
I live near Valley Forge, pa.
Mine is leaking (I think thats what it is, cant be sure til I pull the pump)
Wondered if you could tell me how hard that seal is to do
Where to get seals/seal kit too
thanks!
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Reply #11July 25, 2011, 01:34:47 pm

R.O.R-2.0

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Re: Ultra Low Sulfur
« Reply #11 on: July 25, 2011, 01:34:47 pm »
Have you see what Bio can do.Huge mess.

yes, bio-d is messy crap..

especially when going from bio-d to regular-d..

400 miles is all the farther my audi made it. ran bio most of its life (well, when it was in southern oregon atleast) then i switched it to regular-d on the way home.. and didnt think about anything like that till i was home the next day and the car wouldnt start..
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Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #12July 25, 2011, 02:01:04 pm

RabbitJockey

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Re: Ultra Low Sulfur
« Reply #12 on: July 25, 2011, 02:01:04 pm »
Trevor - where did you get the seal for the advance mechanism.
I live near Valley Forge, pa.
Mine is leaking (I think thats what it is, cant be sure til I pull the pump)
Wondered if you could tell me how hard that seal is to do
Where to get seals/seal kit too
thanks!


a guy locally had the o ring for me, its just an o ring, i honestly don't remember much about how it went other than that it was pretty easy u just gotta make sure u mark the shaft and lever so u can put it all back exactly where it was before or else it can effect timing.  ud probably be fine taking the old o ring to advance or napa and digging through their o rings to find the proper size.  lots of our vendors sell the full rebuild seal kits, and they are also available on ebay
01 Jetta TDI 100% stock daily
81 Rabbit:TDI-M ported head, Frank06 cam, PD intake, hybrid T3 turbo, Renault intercooler, Syl20 11mm pump, light weight fw, and yellow California Clutch clutch kit

Reply #13July 25, 2011, 06:19:04 pm

92EcoDiesel Jetta

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Re: Ultra Low Sulfur
« Reply #13 on: July 25, 2011, 06:19:04 pm »

Reply #14August 09, 2011, 05:48:30 am

dts67

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Re: Ultra Low Sulfur
« Reply #14 on: August 09, 2011, 05:48:30 am »
I run a little bit of 2 stroke oil in my diesel (250 to 1 ratio, 1 oz/2 gals) to increase lubricity.

X 2 ,or 2-3% and don`t tach IP if you don`t have to.
x3, the proccess of removing the sulphur apparrantly causes the diesel to loose some of its lubricity, so the myth goes lol, cars defo quieter in the morning with the extra oil.