Re: [MBZ] IP Troubles

[Jim Cathey]

lines when the primer pump is pushed, but there is nothing whatsoever 
coming out of the IP when the motor is cranked.  No amount of cranking


Could the vacuum fuel shutoff be stuck?  Unhook it and blow (by mouth)
into the line, then repeat the experiment with it still unhooked.
You can use the manual shutoff to kill the motor should you get it
started, or hook the brown line back up.

-- Jim

Re: [MBZ] IP Troubles

[John M McIntosh]

So what about the fuel pump? Should you not get fuel out of the  
return line if the fuel pump is working, that would be excess fuel  
the IP isn't using.



On Apr 7, 2007, at 12:59 PM, B Dike wrote:


Dieselvolk,

We're having IP troubles with the 82 300CD.  Daughter reported that  
it was losing power and parked it at a local gas station.  I put in  
5 gal of diesel and it limped home sounding like the proverbial can  
of marbles with barely any power.  I figured it to be a plugged  
fuel filter due to lots of biodiesel and being driven on a  
chronically near-empty fuel tank.


After a new fuel filter and bleeding at the filter housing, no  
firing whatsoever the next morning.  I aired out the fuel line from  
the tank and checked out the shutoff valve, no problems.  Fuel  
weeps out of the injection lines when the primer pump is pushed,  
but there is nothing whatsoever coming out of the IP when the motor  
is cranked.  No amount of cranking will make the IP push fuel out  
the injection lines.  I removed the No. 1 line and nothing comes  
out of the little exit hole on the IP unless I push the primer pump.


I'm hoping that problem is merely some air in the IP waiting to be  
bled out.  Is there an air bleed screw on the IP for that purpose?   
My real concern is that the IP is damaged due to a slug of water or  
something from the bottom of the tank.  Ideas, anyone?


Thanks,

[MBZ] IP Troubles

[B Dike]

Dieselvolk,

We're having IP troubles with the 82 300CD.  Daughter reported that it was 
losing power and parked it at a local gas station.  I put in 5 gal of diesel 
and it limped home sounding like the proverbial can of marbles with barely any 
power.  I figured it to be a plugged fuel filter due to lots of biodiesel and 
being driven on a chronically near-empty fuel tank.  

After a new fuel filter and bleeding at the filter housing, no firing 
whatsoever the next morning.  I aired out the fuel line from the tank and 
checked out the shutoff valve, no problems.  Fuel weeps out of the injection 
lines when the primer pump is pushed, but there is nothing whatsoever coming 
out of the IP when the motor is cranked.  No amount of cranking will make the 
IP push fuel out the injection lines.  I removed the No. 1 line and nothing 
comes out of the little exit hole on the IP unless I push the primer pump.

I'm hoping that problem is merely some air in the IP waiting to be bled out.  
Is there an air bleed screw on the IP for that purpose?  My real concern is 
that the IP is damaged due to a slug of water or something from the bottom of 
the tank.  Ideas, anyone?

Thanks,


Bruce
82 300CD 348kmi 'His'
85 300CD 253kmi 'Hers'
75 240D 202kmi 'Donner'
77 240D 204kmi 'Blitzen' gone to a better place
74 240D 79kmi 'Orangewagen'
73 220D 'Fnu Lnu'
 
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Works just as it should under XP. Ended up with 50 - 60 kbps today.

-- 
OK Don, KD5NRO
Norman, OK
"Even if you're on the right track, you'll get run over if you just
sit there."
Will Rogers
'90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager