[DML] Flushing Fuel lines
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[DML] Flushing Fuel lines



Charles:
 
Those with more experience may tell you what I did was unwise, but I had
great results.
 
First - I knew the tank had gas in it that had been sitting for 12
years.  I did not even think of turning the fuel pump on - I knew it was
a write off.
 
I mucked out the tank by hand using fuel injector cleaner and old rags -
there was about 1 inch of muck in the bottom.  I threw out the old pump
- it was coated in tar/scum.
 
I installed the new pump assembly and had it all ready to go.
 
I then bought a $12 low volume fuel pump at the auto parts store and got
a Rubbermaid tub, some fuel line, several cheapo paper filters with
clear housings, and fittings to extend my fuel lines a bit.
 
At the fuel distributor I took the feed line and the return line loose
and tied them together with a brass bolt and proper washers -
eliminating the fuel dist. and injection system from the rest of the
fuel system.
 
I then poured about a gallon of B12 into the Rubbermaid tub and used the
cheap fuel pump to flush the system, a cheapo fuel filter was installed
on the return.  I let this run for about an hour - periodically changing
the filters.  Then I replaced the B12 and ran it some more.  An hour
later I replaced the Delorean fuel filter, the B12 and ran it one more
time - this time there was only minor discoloration in the return fluid.
 
I then replaced the fuel lines with the new ones from my kit.  At this
point you must immediately flush the system with gasoline to remove the
B12 - as it can damage the fuel accumulator and perhaps the distributor.
 
I connected my pump. Put in fresh gas - reconnected the fuel lines at
the fuel distributor - and it started up very nicely.  I intend to
change the fuel filter again once I have about 10 hours on the engine
just in case.
 
Tom
 
# 10902

-----Original Message-----
From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf
Of Charles Major
Sent: Tuesday, July 19, 2005 1:13 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [DML] Old gas in Tank
 
The gas has been in the tank almost a year. I have venturi off to clean
it out. Can I break the line before the filter and pump the gas out and
fill up some more and pump again? Can the fuel dis (I know not to take
it apart) be flushed? Like carb cleaner.
Charles




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