W123, Vacuum

300D gasping for power on long hill

Hi all, Thanks in large part to Mercedes Source, I have a 1981 300D that runs quite well. Really no running problems except on one hill in my normal commute. The car starts to 'stutter' about half way up this 1+ mile incline. Like it's starving for diesel (I've replaced pre-filter and FM100 canister) or has an air leak at high load. I've tightened all the hoses. BUT, this all really started sometime after I ran B99 for 4 or 5 tanks this summer. Prior to that, the car would actually accelerate somewhat up the hill in question. I do have Viton return lines and the special lines supplied with the FM100 Stanadyne filter. My next suspects are connections/hoses (again) and tank strainer (which I have not touched yet).

Forums

Diesel Engine Specific Aid

Taxonomy upgrade extras

Questions and Answers

Chassis Model Number

W123

In-Line Fuse Question

I am upgrading my existing STC with a second tank and fuel boost pump. My original kit included the Fuel Sump heater, but did not include a relay with it. When I purchased the fuel boost heater, I used the relay included and wired it according to your DTC instructions. 1st Question - Since power is comming from the fuse boss which already has a fuse, do I need to use the in-line fuse supplied with the fuel boost pump? When I did the 10AMP fuse blew at the fuel sump heater. I'm confused since the power went through the fuse boss 10AMP fuse and did not blow this fues, but did blow the fuse at the rear heater.

Chassis Model Number

W123

Forums

SVO Fuel Conversion Specific Aid

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