dooper glow plugs/NOT - MINI Cooper Forum

MINI Cooper Diesel MINI Cooper Diesel 2007 - Present

 
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post #1 of 9 (permalink) Old Dec 10th, 2008, 11:38 PM Thread Starter
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dooper glow plugs/NOT

How does the dooper warm up its glow plugs? Are there any? How do we know? etc etc

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post #2 of 9 (permalink) Old Dec 11th, 2008, 11:49 AM
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Rtfm?

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post #3 of 9 (permalink) Old Dec 11th, 2008, 12:58 PM
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Glow plugs with a pre-heat control unit

RealOEM.COM * BMW R56 Cooper d GLOW PLUG UNIT
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post #4 of 9 (permalink) Old Dec 12th, 2008, 09:52 AM
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Just like Jon said

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post #5 of 9 (permalink) Old Dec 13th, 2008, 10:55 PM
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This is one of the reasons why putting petrol into a diesel engine is so hazardous.

If you discovered your mistake just before starting the engine, you might think you are in time to prevent engine damage as the fuel has not moved out of the tank. As far as I understand, by the time the car door is opened, fuel is drawn into the engine, the glow plugs pre-heated and the damage is done even before pressing the start button!

Particularly important for those who are just getting used to a Diesel MINI!
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post #6 of 9 (permalink) Old Dec 16th, 2008, 03:47 PM
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Quote:
Originally Posted by pbarclay View Post
This is one of the reasons why putting petrol into a diesel engine is so hazardous.

If you discovered your mistake just before starting the engine, you might think you are in time to prevent engine damage as the fuel has not moved out of the tank. As far as I understand, by the time the car door is opened, fuel is drawn into the engine, the glow plugs pre-heated and the damage is done even before pressing the start button!

Particularly important for those who are just getting used to a Diesel MINI!
Hmm - good advice, especially for those who have both diesel and petrol MINIs in the family

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post #7 of 9 (permalink) Old Dec 16th, 2008, 04:14 PM
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Yes this is true.....

Back in the old days () when starting a diesel car, you used to have to turn on the iginition, wait for the coil light to extinguish (which shows the glow plugs are up to temp) and then turn the key which starts the fuel flow and the starter.

As more people switch to diesel cars, they want immediate turn key starting hence the preheat unit which is activated as soon as the vehicle is unlocked. This makes starting quicker, but also makes it easier to damage your engine.
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post #8 of 9 (permalink) Old Dec 16th, 2008, 04:17 PM
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I thought you were too young to remeber the old days, Jon!

Our first diesel (Peugeot 205) also had a fuel filter that extracted water from the diesel - from time to time you had to drain it. But these days, is there no water in diesel, or do modern engines simply work regardless???

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post #9 of 9 (permalink) Old Dec 16th, 2008, 04:22 PM
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Quote:
Originally Posted by pbarclay View Post
This is one of the reasons why putting petrol into a diesel engine is so hazardous.

If you discovered your mistake just before starting the engine, you might think you are in time to prevent engine damage as the fuel has not moved out of the tank. As far as I understand, by the time the car door is opened, fuel is drawn into the engine, the glow plugs pre-heated and the damage is done even before pressing the start button!

Particularly important for those who are just getting used to a Diesel MINI!
The problem with putting petrol in a diesel engine is that the petrol does not provide the lubrication that the fuel system and, in particular the injector pump relies on. As a result these precision components suffer terminal wear and no longer operate as they should. It really has little to do with the glowplugs.

It is true that some modern diesel cars do prime themselves for starting when the door is unlocked or opened etc so the wrong fuel quickly permeates and damages the fuel system. But merely opening the door is unlikely to get fuel into the engine, as opposed to the fuel system, as the injectors etc will already have some diesel in them which has to go somewhere.
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