I've heard around about Veg oil giving people problems. I'm curious to know if anyone else has had Veg oil problems.

I have a car in my shop right now a 124 with a 606 which was on Veg oil. Now the car runs like crap when cold, misfiring and whatnot, low compression. This car is a total mystery, but I'm starting to think its something with the Veg oil. Just wondering if anyone else has had problems.

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99 Jetta Mk3
07 Jetta Mk5
89 300E W124
10 E 350 W212
08 C300 W204
Benz's aren't mine

hahahah, do a search. But don't worry 150 other people will post here.

WVO kills.

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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

HAHAHAHA !!!!!!!
probably seized rings, blocked pre-chambers, damaged IP & injectors. Depends on the WVO and how much and how long you used it.

Plenty of Veggies on here will tell you its old age & nothing to do with the fuel.

There is a thread on here at the moment with people giving details on how many miles they have used WVO for.

Who ever owns the car is a sucker. They either used WVO without properly understanding the consequences, or purchased the car being told how good it was on WVO. Its like placing a grenade without a pin between your legs so you can count to 10 on your fingers.

The easy cure is to take the head & sump off, remove pistons & clean the varnish off every thing. Replace injector tips & replace what ever is crook in the motor. Give the owner a BIG BILL & suggest they use proper fuel in the future.

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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

Improperly filtered oil, and a poorly designed VO system will gum up the whole fuel system, cause carbon deposits, and gum up piston rings. All of these things cause poor running, low compression, excessive wear, and veg oil in the motor oil which can become polymerized and cause excessive wear on all the things that require oil lubrication. I'm guessing the system is either a single tank setup or a two tank system with a lack of proper heat. Tell us more about the veg system. There are some tricks to cleaning up the system and unsticking piston rings, but it may not help depending on the state of things.

You could simply need some diesel purge to clean out the injectors and fuel system, a valve adjustment, and some new glow plugs.

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I don't think you have to adjust the valves on a 606.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.

True dat, I just forgot, I never deal with the 606's so it slips my mind.

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"death in a cubie"

Wow you are so helpful. It's not his car. He is trying to fix it.

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may Odin give him a large budget to work with!

Follow the link on post #125, it help few with gummed ring
http://www.peachparts.com/shopforum/showthread.php?t=267298&page=9

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E300TD year 2000. RUSTY SOLD
cost a fortune to maintain on the road
but run well on WVO
Second Merc died due to corrosion ( NOT rust) How can mercedes get away with that for so long?
Third lasted a month then went away...
Fourth now... Corroded too...

Regardless if the issues are caused by the veg oil or something else, please report back with what ever the definitive cause is found to be. If it does indeed turn out to be due to the veg oil, please tell us how you were processing and using it/

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Pictures of the MB: http://s230.photobucket.com/albums/ee41/EricandRobyn/1981%20Mercedes/

1981 300 SD with a Goldenrod water block and Injetor line heaters. EGR is missing

1999 F-350 with HP X-over, Dahl 100 Fuel Filter, Coolant by-pass filter, CCV mod, Tymar intake.

Both on single tank WVO blend

The only problem I had with old veggie was animal proteins.That is the grease from fried meat.
Cold filtering sloved this problem. Also rushing to filter(if out of diesel money) caused problem with water.A Stanadyne FM 100 5 micron water seperator helps.But you need to wait a week to settle water out.
New oil never no problem as long as injectors are 175 degrees,and I never run 100% oil.I always mix 30% diesel in.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

rings are what I'm thinking, I'm just curious to hear some horror stories about Veg conversions. We didn't install the kit, apparently this guy filters his own oil.

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99 Jetta Mk3
07 Jetta Mk5
89 300E W124
10 E 350 W212
08 C300 W204
Benz's aren't mine

The most detrimental problem with running VO is the rings getting stuck, and allowing VO to get into the motor oil. A little fuel in the oil is okay and fairly normal in an old diesel. But with VO there is a threshold and if you go over that line the motor oil instantly polymerizes. It turns into this black gooey gelatan. Say good bye to your engine. I've seen some that came out of a 2000 era Ford that was running VO. The reason the rings get stuck is because the VO isn't hot enough when it's injected. This causes poor spray pattern and uncomplete burning of the fuel so you end up with VO deposits, which gum up the rings. You can also avoid having too much VO in your oil by changing oil frequently. There are two main causes to engine problems with VO, lack of heat, and lack of proper filtration. If you use good quality VO, filter it properly, and heat it enough all will be fine for a long time.

I'd suggest pouring in an ounce or two of brake fluid into each clylinder. Brake fluid will brake the rings free, if that is the issue. I've done it on several engines that have sat for a long time and caused the ring to get stuck in place. I had a 300D engine that had 80psi in one hole. Poured in some brake fluid, and let it sit for several days, and compression came up to over 300psi. Make sure to change the oil afterwards. You don't want brake fluid in your oil.

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You'll want to pop test the inj's too....they undoubtedly have a bad spray pattern and are contributing to the problem.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)