Gasser conversion, remove CIS fuel pump?
Gasser conversion, remove CIS fuel pump?
I've always thought an electric pre-pump would be a good idea for bleeding fuel through to the IP, but I guess that the CIS pump being about 60psi+ would be too high pressure to feed straight into the M series pump. Perhaps I should feed a standard fuel pressure regulator with it, then dump the return into the return line?
I know the P series cummins pumps seem to like a high fuel input pressure, what is the general concencus about this on the M series pumps?
Cheers all,
Hugh
So I got thinking last night, when I swap the petrol engine out for the 606, I'm going to need to remove the CIS pressure pump that's under the boot floor area..... or am I?
I've always thought an electric pre-pump would be a good idea for bleeding fuel through to the IP, but I guess that the CIS pump being about 60psi+ would be too high pressure to feed straight into the M series pump. Perhaps I should feed a standard fuel pressure regulator with it, then dump the return into the return line?
I know the P series cummins pumps seem to like a high fuel input pressure, what is the general concencus about this on the M series pumps?
Cheers all,
Hugh
George3soccer
08-07-2010, 04:58 AM #2In my application I removed the gas pumps and put in the diesel lines with the stock lift pump. But after doing that spoke with a few other diesel gurus and they said that I should have left one pump on the line to the ip.
(08-07-2010, 04:58 AM)George3soccer But after doing that spoke with a few other diesel gurus and they said that I should have left one pump on the line to the ip.
That's my plan... I've got a gasser parts wagon that I'm going to take the CIS pump off of and put on my wagon when the time comes.
John Robbins
'05 E320 CDI - 118k - Faaaaaast!!
'87 300TD - 317k - Cracked head... but an OM606 is on the way!
'79 300SD - 295k - Bad engine = project car!
(08-07-2010, 04:58 AM)George3soccer But after doing that spoke with a few other diesel gurus and they said that I should have left one pump on the line to the ip.
That's my plan... I've got a gasser parts wagon that I'm going to take the CIS pump off of and put on my wagon when the time comes.
John Robbins
'05 E320 CDI - 118k - Faaaaaast!!
'87 300TD - 317k - Cracked head... but an OM606 is on the way!
'79 300SD - 295k - Bad engine = project car!
In addition, the fuel pressure within the pump body will be determined by the pressure relief setting on the fuel outlet banjo bolt.
Having the electric pump also makes any injection pump work/swaps, setting BOD, and fuel filter changes a breeze.
DervTuning
08-11-2010, 11:23 AM #4I suggest leaving it in, especially since you want to make some power.
In addition, the fuel pressure within the pump body will be determined by the pressure relief setting on the fuel outlet banjo bolt.
Having the electric pump also makes any injection pump work/swaps, setting BOD, and fuel filter changes a breeze.
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