whitegold
Senior Member
- Joined
- Aug 11, 2005
- Messages
- 46
- Reaction score
- 26
- Location
- East Yorkshire
- Your Mercedes
- C220 cdi Blue Efficiency SE MY2012
I've been tracking down the (air) bubbles in my LP fuel circuit, and this included running the engine from a 5ltr can, by-passing the fuel tank. I noticed that the fuel emerging from the fuel pre-heater is (very) hot, I estimate almost at engine coolant temperature.
I would have thought that the main purpose of this gizmo is to prevent winter waxing problems, rather than to be supplying fuel to the pump at 80-90degC.
Does anyone have any idea what the stabilised fuel temperature is supposed to be for this engine? I notice that the IP fuel temperature sensor test values are quoted for the range 20-60C.
Local MB suggest they have replaced "quite a few" of these, but I am reluctant to shell out for one, unless I can prove it faulty.
Perhaps some kind soul would like to measure the fuel filter casing temp. on a hot engine, I'm sure this is the sort of detail all the biodiesel fans are aware of.
Thanks for all or indeed any replies
Simon
I would have thought that the main purpose of this gizmo is to prevent winter waxing problems, rather than to be supplying fuel to the pump at 80-90degC.
Does anyone have any idea what the stabilised fuel temperature is supposed to be for this engine? I notice that the IP fuel temperature sensor test values are quoted for the range 20-60C.
Local MB suggest they have replaced "quite a few" of these, but I am reluctant to shell out for one, unless I can prove it faulty.
Perhaps some kind soul would like to measure the fuel filter casing temp. on a hot engine, I'm sure this is the sort of detail all the biodiesel fans are aware of.
Thanks for all or indeed any replies
Simon
