Starting problems
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Starting problems
- From: srubano@xxxx
- Date: Tue, 15 May 2001 17:09:10 -0000
Ok so here's my first post on a problem I am experiencing on my D
after trying to start it after 4 years.
I should start off with the following: I replaced the Fuel pump,
accumulator and Fuel filter. I emptied out the tank and cleaned it
out (although it was pretty clean to begin with). I had had the frame
off the car and taken all of the fuel lines off and blew them out
with shop air. I took the fuel distributor off the car and
gently/carefully removed the center metering pin and cleaned out the
fuel distributor. I had also rebuilt the entire engine myself and set
all the timing and such to spec. I installed everything, put about 5
gallons of gas into my tank along with Stabil gas stabilizer. I have
all 3 new fuel hoses and they are connected correctly and routed
properly. The new fuel filter is not threaded onto the 90 degree
elbow to tight to cut off fuel restriction. Fuel pressure from the
hose coming off of the fuel filter to the distributor is running sort
of like a garden hose. My cold start valve and frequency valve are
working and my warm up regulator is not blocked up. I have had the
injectors tested and cleaned by Rob like a year ago and they have
been stored safely in a dry location until the other day I put them
into the engine.
Now here is the problem:
I tried to start the engine and it just sputtered and died. After it
sputtered and died I tried to start it again but this time it seems
that only one cylinder is firing since after every revolution I hear
one firing. With the help of Nick Pitello I took out some of the
injectors and jump the fuel pump, nothing was spraying out of them.
We then began to adjust the CO and still nothing. Nick them tapped
the side of the injectors with the plastic side of a screwdriver and
it began to spray properly! We then tried it with another injector
that wasn't working and it too started to work. We installed the
injectors back into the engine (after only doing three of them) and
tried to start the car. Well it began to start but very ROUGH and it
idled for like 4 secs and then died. After a few seconds we tried to
start the car and the problem returned (one cylinder only firing). We
took out the same injectors and this time they were intermittently
working.
Now here is my question: First I should say I do not have a fuel
system pressure tester to test the pressure of my system (anyone want
to lend me one for a day? :)) Could I have a pressure problem? Like I
said before when the system is set up normally and I try to crank
it..only one cylinder fires. The sputtering in the beginning is most
likely due to the fuel in the intake manifold from the cold start
valve. Could it be that my fuel injectors are bad? How could I test
them at home to see if they are bad? Is 5 gallons of fuel enough for
testing? I didn't want to fill the tank up incase I had to get into
the tank again for any reason.
I have dealt with loads of electronic injectors (MPI,TBI,etc) but
this is my first with the Bosch setup.
Any suggestions welcomed and appreciated
Thanks,
Steve Rubano
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