[MBZ] Uh oh, gettin worse

[Marshall Booth]

Curt Raymond wrote:
> So last week I wrote about how my Indy was worried that my 190D had a "weak" cylinder.
>   Today he calls me and says the more he diddles with the car the worse it runs and the more it points to the IP. He says he took the line from the IP to injector 4 off and cleaned the o-ring and now it wants to run away. This morning when he'd crack the #4 injector previous to the cleaning, it wouldn't dribble much fuel, now it gushes.
>   He's going to check with a Mercedes friend of his and see if he has any idea but he's basically thinking the IP has issues. Any wisdom from the list would be wonderful.


Injection pump failures are VERY rare. I think there's a chance the man 
working on your car could be VERY dangerous. If he's fiddled with the 
pump and the engine runs worse, he's done things he has NO business 
doing! There is virtually nobody that doesn't have a injection pump test 
bench that can repair anything more than delivery valve seals. Pull all 
the lines and crank the engine - about the same quantity of fuel should 
squirt out of each delivery valve.

If there is a problem with the pump, there are working used pumps 
available for $100-$200.

Marshall
-- 
	  Marshall Booth (who doesn't respond to unsigned questions)
       "der Dieseling Doktor" mbooth at pitt.edu
'87 300TD 182Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi, '84 
190D 2.2 229Kmi (retired)