Primming Pump
 

I just aquired a 91 300D 2.5 turbo with the 602 engine. Does this car have a Primming Pump? If so, where is it?

Thanks

I have the same car! Hope you like it, I really like mine! There is no priming pump on the 60x engines because they are self priming.

Thanks for the information. Yes I like it but it is taking me some time to get accustomed to the diesel knock. I grew up thinking that if an engine knocks, it is broke.

If the IP is self primming, then if you run out of fuel do you add fuel and just crank until it starts? What about changing the filters, just crank?

You do not want to do this on a diesel engine. If you do run out of fuel, you may not have sufficient battery power to get it started. If you do have sufficient battery power, you might kill the starter in the process.

I ran my 1987 300D out of fuel once. After putting in about a gallon of fuel from an "emergency" container (plastic jug) it took about two minutes of total cranking time to get it started again. Not in one session - that would burn out the starter. I did about four 15 second cranks, spaced by about 30 - 40 seconds cooling time for the starter. It helped considerably that the engine was already warmed up. Moral of the story: Don't completely trust the low fuel light to come on. :)

The situation with the 602/603 is considerably improved over the 616/617 as far as getting restarted after a fuel loss. However, I still would recommend filling up a new main "spin-on" filter with diesel fuel or diesel purge before installation. [ Note - "spin-on" does not mean the filter spins on - it doesnt' in this case, because you turn the bolt instead of the filter. ]

Ken300D

Thanks for the information. With everyones help, I am learning.