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post #1 of 4 (permalink) Old 04-05-2007, 08:59 AM Thread Starter
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Vehicle: 1985 mercedes 300sd
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turbo questions 300sd

I am the owner of the 1980 300sdTurbo and I'm just tuning the engine before I put my lovecraft conversion in. I have done the basics and noticed that the breather tube is leaking a bit, both where it comes out of the valve cover and where it goes into that large three-inch hose that comes out of the Turbo and into the aircleaner, The large hose from the turbo is dirty with oil and dirt from below the breather tube enterance.

I went to performance parts in Van Nuys for a few things and asked about replacing the large hose and and the guy there said a my have a turbo problem and I should see a mechanic. Any idea how to diagnose turbo issues?
I will take pictures and post them tonight, but does anyone have any experience with these turbos does this diagnosis sound right? does anyone know a trustworthy turbo specialist in the Los Angeles or SFV area who won't put me in the poorhouse? Does anyone know about Van Nuys Mercedes-Benz service on Oxnard Street? he did some maintenance for me , and seemed pretty good.thanks alot! Cary
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post #2 of 4 (permalink) Old 04-05-2007, 01:25 PM
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Vehicle: 1979 300D; 1986 420SEL
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You can replace the breather tube easily enough:


Also, I have a great mechanic in Santa Monica -- Herbert Richter at German Motor Car Service, located on 15th just south of Olympic (where the street deadends at the 10 freeway). I cannot recommend him highly enough!

Finally, please do not use a Lovecraft conversion on the car. They do the worst conversions available. Search around this site for "Lovecraft" for more info.
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post #3 of 4 (permalink) Old 04-05-2007, 07:21 PM
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Sounds like grime and oil that seeps from blowby gases. That is normal the engine will never stay clean for long even when every piece of rubber is replaced. If you can post a picture it would be easier to see where the leaking is stemming from.

And I would have to agree with Mark. DON'T get a Lovecrap system! If you plan to keep the car go with a two tank Greascar or Frybrid kit. Otherwise you'll trash the injection pump becuase of the inability of the system to heat oil thereby making it thin enough to be pushed through the injection pump without getting an annurism in the near future. Read up and make your own decision but that's at least 2 warnings.

If you go on their forum, sign up and ask about injection pump reliability questions and Brian will delete the question and associated answers because that is the costly flaw in the system behind all of those fancy logos and etched parts. $800 of scrap that will turn the car into the same thing!

1977 - W116 - 6.9
1974 - W115 - 240D /8 - 4(M) OM617.910 + Turbo + 300D FW - Completed 7/8/10
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post #4 of 4 (permalink) Old 04-08-2007, 01:21 PM Thread Starter
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doesnt this solve the lovecraft problem?

My plan was not simply the lovecraft filter. I also have purchased electric heaters for the injection lines that get to about 200f as well as an electric heater for the line that goes from the fuel line out to the pump which is a 100 watt heater. so my veggie will be heated before my glowplugs even go on (by the injection line heaters) - the Lovecraft filter will work along with it. According to everything I have read that the Lovecraft problem is just this - cool fuel until the engine is hot enough to heat the veggie. Isn't that right?
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