Forum Discussion
Turtle_n_Peeps
Mar 07, 2012Explorer
So if lubricity IS the issue, what kind of damage could be done to the HPFP by dry cranking the engine, with no fuel in the HPFP to lubricate it? I know that it isn't good on any diesel to be dry cranked because the diesel is used to lubricate more than just the fuel pump, such as the cylinder walls. So do you think dry cranking could result in the destruction of the cp4.2?
When a diesel engine runs out of fuel the pump is not dry. It will loose pressure and it will die but the pump will be wet.
As far as fuel lubbing the cylinders. That don't wash because modern engines have a fuel cut-off when coasting down hill. If that happened you would hurt your engine every time you coasted.
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