W116, BENZ AID - COMMON QUESTIONS AND ANSWERS

1985 300sd 30 mph max no power

I just purchased this car. It starts quickly and idles smoothly but has no power and will only go about 30 on flat ground. I removed exhaust pipe with the cat and muffler, thinking the cat was plugged, didnt help. the previous owner said the turbo got hot and caught the underhood insulation on fire but he got it out quickly and with the exception of 2 vacumn lines it didnt hurt anything. turbo area emits a highpressure air sound, not a turbo whistle,at idle and it gets louder under power. Any suggestions? Thanks Tom Postscript 1st benz Ive owned so have to catch up.

Chassis Model Number

W123

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Diesel Engine Specific Aid

85 300D Wont start

I forgot to fill up the new fuel filter with diesel before installing. I realized my mistake after cranking the engine a few times with no engine start. I took the filter off and filled it up with diesel fuel and reinstalled. I still cannot get the car started, if the car does fire it only runs for a second or two then dies.

My car was running fine just before the filter change. I have not refueled recently. I have a WVO kit installed but have been running on diesel for the past week due to lack of WVO.

Is there a way to check for air in the fuel line?

Forums

Diesel Engine Specific Aid

79' 300D Won't start out in 1st gear

Our 1979 300D runs great at speed. We just installed Kent's boost pump kit and it really does help starting and idling and did help a little on power too. I was hoping it would also solve our shifting problem as well but it did not. From a dead stop, the car will always start rolling in second gear (which as everyone knows makes it painfully slow) even if I mash the pedal down. It will do this even if I shift into neutral while stopped then shift to drive just before moving.
We've already done the following to this car: recent valve adjustment, timing chain replaced (has good timing now), recent diesel purge, new filters, fuel lines and fuel strainer, adjusted kickdown rod from throttle to transmission (which did improve the shifting above 20mph to earlier shifts for more power).

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

Install angle of the Stanadyne filter

I am going to install the stanadyne filter for my SVO/WVO single tank conversion but I was wondering what is the best angle to install it. I was thinking one or two ways 1)Lying along side the wheel well in the engine compartment or get it up in 90 degree angle with some sort of bracket? Laying along the top of the wheel well at an angle will that cause some air to get into the system or will the primer take care of that once the system is full of fuel?

Chassis Model Number

W126

Forums

SVO Fuel Conversion Specific Aid

1985 300TD Doesn't turn off

I have a 1985 300TD and i can take the key out and it doesn't stop. If I press the lever on the engine it does turn off. I'm pretty sure the problem has to do with the vacuum system but I don't know how to test it. Could someone please send me a diagram of where the vacuum system is and instrustions on how to test it. I'm also leaking from a fuel injector could that cause my problem?

Forums

Diesel Engine Specific Aid

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