- Joined
- Feb 8, 2007
- Messages
- 20,782
- Location
- Portsmouth, Hampshire.
- Car
- E55K SL500 E250X2 Smart44 Brabus Track car E450Cabriolet X350 Pick up
Ignore the LPG it has nothing to do with the problem.
All 200K Engine Owners - Please Read!
well I will just have to accept your explanation but still not convince anyway but would like someone to post a pic of the multiplug on here with the shroud(cover) removed so we can see how the oil jumps from one set of pins to the others
Engine oil on ECU may well cause problems depending on how much metal particles are contained in the oil, however the ECU should survive if cleaned properly as they are quite electronically robust.
If removal and cleaning of ECU is required ensure full electro static precautions are followed.
It only takes a few volts to damage/shorten the life of an electronic component but the average person will not feel a static shock below 2,500 volts.
Tom
If removal and cleaning of ECU is required ensure full electro static precautions are followed.
It only takes a few volts to damage/shorten the life of an electronic component but the average person will not feel a static shock below 2,500 volts.
Tom
- Joined
- Feb 8, 2007
- Messages
- 20,782
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- Portsmouth, Hampshire.
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- E55K SL500 E250X2 Smart44 Brabus Track car E450Cabriolet X350 Pick up
Whe I get another in the workshop I will take a pic.
Believe me the oil goes through the plug connector. It is cr4p I know but it does happen.
Believe me the oil goes through the plug connector. It is cr4p I know but it does happen.
OP
OP
blicky_1
Active Member
It does indeed I have seem it with my own eyes
all engine sensor plugs were saturated in oil....Unfortunatly all the old parts were thrown away last week or I would have got some pictures up for you.
Also I admit It is a bit weird when you take the plug out of your engine ECU and there is a puddle of engine oil (Magnatec GTX) in it
if you chase the loom back it has gone a long way around the engine to get to that point and I would imagen over a long period....As stated before this problem happens on LPG or Unleaded as I can switch between the two.
I am now awaiting the cars ECU to be read (later this week) to see why the light has come on this time, going by experienced members here it is looking like a new MAF is in order.
OP
OP
blicky_1
Active Member
television
Hardcore MB Enthusiast
Impossible to open mate, belive me I had thought about it..
All of the ECUs can be opened.
I brought back some black old engine oil today, it measures in excess of 20mΩ per 0.25mm. With a 500v mega it is in excess of 50mΩ so anyone can do their sums as to any current flow on 12 volts, when I get the bench clear I can measure down to 1 micro amp full scale, I can also check any capacitive effect, I think that it will be zero
OP
OP
blicky_1
Active Member
I would like to know how with this one without busting it.....
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OP
OP
blicky_1
Active Member
Can you test with clean engine oil as us LPG owners don't get ours dirty
marcos
MB Enthusiast
Oil used to be used in certain contactors to cool things down and to prevent arcing caused by vibration. This was in effect a good idea as oil is used in large transformers and large underground cables for cooling. The problem with using such a system in contactors was that after a good few years the oil would get so contaminated with metal particles that the whole thing would short and you would end up with a nice mess in the switchroom.
Obviously oil is not used nowadays but it goes to show you that any moving parts will distribute particles that will eventually make the oil become conductive.
Unfortunately this was before my time and I have only ever disposed of such equipment si I have no idea as to what type of oil was used.
Obviously oil is not used nowadays but it goes to show you that any moving parts will distribute particles that will eventually make the oil become conductive.
Unfortunately this was before my time and I have only ever disposed of such equipment si I have no idea as to what type of oil was used.
marcos
MB Enthusiast
Impossible to open mate, belive me I had thought about it..
I have yet to come across any ECU that is impossible to open, bloody difficult yes but impossible no!
television
Hardcore MB Enthusiast
I do not know how dirty the oil has to be, but my test were on a black treacle like substance, I am not a scientist, but I believe that the molecules of oil are separated, thats how it worksOil used to be used in certain contactors to cool things down and to prevent arcing caused by vibration. This was in effect a good idea as oil is used in large transformers and large underground cables for cooling. The problem with using such a system in contactors was that after a good few years the oil would get so contaminated with metal particles that the whole thing would short and you would end up with a nice mess in the switchroom.
Obviously oil is not used nowadays but it goes to show you that any moving parts will distribute particles that will eventually make the oil become conductive.
Unfortunately this was before my time and I have only ever disposed of such equipment si I have no idea as to what type of oil was used.
Wood oil is used through out the national grid, it cools and stops arcing
marcos
MB Enthusiast
Because I was an apprentice at the time I never really thought to ask what type of oil it was or how often the oil had to be changed, I had other more important things going on, like where were me and my mates going on friday night and would I be able to pull before I got slaughtered.
Those were the days
television
Hardcore MB Enthusiast
Because I was an apprentice at the time I never really thought to ask what type of oil it was or how often the oil had to be changed, I had other more important things going on, like where were me and my mates going on friday night and would I be able to pull before I got slaughtered.
Those were the days
There was you going out having fun, while I opened my own business in 1953, nothing but work day and night until last year, thats why I sit here now
marcos
MB Enthusiast
And now I work day and night and in 3yrs when I'm MD I'll probably have to work day and night and any time in between.
Life was so much easier when I was 18.
television
Hardcore MB Enthusiast
And now I work day and night and in 3yrs when I'm MD I'll probably have to work day and night and any time in between.
Life was so much easier when I was 18.
Seeing that you are in Herts, I was based in Watford
Dieselman
Banned
- Joined
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- 34,198
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- Peugeot 403 Convertible
No wonder you wanted to move to Dorset.
television
Hardcore MB Enthusiast
After living in Sweden where if you sell your house for a profit over inflation you pay Tax on it, so houses do not go up by much, I could not afford to go back to Herts and ended up down here, the prices have risen here x4 in the last 10 years and I could go back now, but as you say, who would want to do that
marcos
MB Enthusiast
grober
MB Master
PCB's
Unfortunately the "oil "used to cool transformers in the past consists of a type of compound called Polychlorinated Biphenyls or PCB'S for short.
They are termed "persistent pollutants" because being very chemically inert they don't degrade naturally in th environment and cause lots of problems including human health problems. They are literally everywhere including in you and me.These are now banned except in closed type systems like transformers. There was a major release of PCBs into the North Sea at the time of the Piper Alpha oil rig fire disaster for example trace amounts of which may now be inside you if you ate fish around that time! 
http://en.wikipedia.org/wiki/Polychlorinated_biphenyl
Unfortunately the "oil "used to cool transformers in the past consists of a type of compound called Polychlorinated Biphenyls or PCB'S for short.
They are termed "persistent pollutants" because being very chemically inert they don't degrade naturally in th environment and cause lots of problems including human health problems. They are literally everywhere including in you and me.These are now banned except in closed type systems like transformers. There was a major release of PCBs into the North Sea at the time of the Piper Alpha oil rig fire disaster for example trace amounts of which may now be inside you if you ate fish around that time! http://en.wikipedia.org/wiki/Polychlorinated_biphenyl
