Pump Failure: Troubleshooting & Solutions

Hello everyone, especially to the pump experts:

Quote:

by Diesel.Gustav. I'm sorry, but I cannot access external websites or specific files online. Therefore, I am unable to translate the text from the provided URL. Because at high temperatures, not only does the density decrease, but the viscosity also decreases, and therefore, the leakage losses at the pump element increase. The leakage losses are particularly significant at low rotational speeds .

If one expands on this thought, one arrives at the question of whether, at the lowest speed, namely starting the engine with the starter, leakage losses can cause so much of the starting fuel to be "lost" that the relatively frequently described starting problems, especially in vehicles with higher mileage and corresponding wear on the pump, become plausible .

Then the antidote should actually be called "initial condition adaptation," but according to Michael II's post in...
/viewtopic.php?p=10208#10208
no official workshop routine is

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