Quote:
Originally Posted by MercUser
Thanks for the Prompt reply!
Yeah it is unfortunate this happened this way. From what I have heard is the Bosch in-line pumps really don't go bad, rotary pumps are more susceptible to failures. But at this point without the engine running and it nearly off and having no say or experience on how it was acting it is a shot in the dark.
The only thing the guy who gave it to me could tell me was that the car lost all acceleration and then would not go over like 45mph and then 30 mph. I mean I feel like fuel supply should have been checked. delivery pump, filters all should be checked first, but it seems this mechanic just went straight for the pump. Maybe the rack was not moving properly or who knows what.
My friend does a lot of in-line Bosch pumps for the John-Deere and other tractors, i would trust them, they look to be very similar so I believe it should be no problem at least for him to check it out.
Your suggestion is used pumps, I see on ebay they have used pumps for like $400 or $500, is this a safe deal or a good idea? My rebuild friend said he could do it for around that, all depends what it may need. The other shops around are like $1000 for a rebuild.
DieselGiant:
Thanks for the feedback on the camshaft, it is good reassurance when doing the job.
SuperD:
I read some threads on drip timing and it seems pretty self explanatory. I'll make sure to take your advice and do that.
Thanks for the reminder I added my location.
Any other info or tips would be great!
Also the mechanic took out all the injectors. This worries me, should I have this rebuilt since they are out? I was told it was $18 an injector to have them tested and balanced.
We have a Bransonic ultrasonic cleaner. I planned on cleaning the injectors and putting back in and seeing how they act. Or while they are out I should do something with them?
Thanks
|
That is the symptoms of clogged Fuel Filters and or Fuel Tank Screen (since it had those type of symptoms you ought to pull that anyway and check it).
If ou have any scummy graish to black stuff on the Screen or in that Plastic fuel filter you have someting growing inside of the Fuel Tank.
Fuel Racks on a running Fuel Injectio Pump do not stick unless one of the Plungers inside of the Fuel Injection pump gets stuck in one spot. And, then there is an obvious missfire because the Plunger is not going up and down.
Racks on the Mercedes Pumps stick when the Car has sat for like years and the Oil is all thick and scummy. But, even that does not happen frequently with Cars that have sat.
Scummy dried Fuel can mess with the Valves inside of the Fuel Supply/Lift Pump and keep them from seating.
If water was in the System the Piston in the Fuel Supply/Lift Pump is a metal to metal slip fit and the Piston can be pushed in one direction and then bind up on the Rust and stick in position and it will not pump.
No one has complained of on any of the Forums but when I worked in a Fuel Injtction Shop back in the old days I would occasionally run a cross a Broken Piston Spring inside if the Fuel Supply/Lift Pump.
Since you have access to a friend that has a Fuel Injection Pump Test Stand ask him to put the Fuel Injection Pump on the stand and see if it works.