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Originally Posted by MB-Owner-in-ind
On the issue of how much throttle, if you check the operation of the IP you will see that it doesn't matter where the throttle is because when starting it will provide the same amount of fuel. The difference comes after you have started the engine, more throttle will get the engine up to an rpm that can be maintained, quicker.
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This makes perfect sense. The governor should clearly know that the engine is not running and will not provide extra fuel until it is needed.
However, my experience seems to indicate the opposite. I have been in two situations, with bad glow plugs, where the engine would only start if I left my foot completely off the pedal. It very slowly started its typical chugging before completely firing. Then, over the course of 15 seconds or so, it crawled up to an idle where you would then be confident of releasing the key.
Prior attempts of giving it 1/3 pedal all resulted in failure. Continuous cranking without any fire.
All of these situations have proved moot when the glow plugs are functioning properly. The 617 has always started within 1 second down to about 5°F., the lowest temperature that I have tried it.
01-28-2005, 06:28 PM
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