JohnInAz
Arizona
Senior Member
Joined: 03/20/2007
View Profile
Good Sam RV Club
 Offline
|
This is my first time changing the fuel filter on my Rose Air (Spartan Chassis). The Cummins book states that I put the filter on dry, and then put the ignition in the run position for 30 seconds, during which the filter will be primed. It also states if the engine fails to start, to loosen the banjo fitting to let the air out. Now looking at the filter (which the coach manufacturer relocated from the side of the engine block) there is an allen wrench fitting that appears could be used to bleed off air at the filter source. The cummins book doesn't mention this (I assume Rexhall added this) and the coach documents don't get into filter changes. My question is, should I loosen this allen fitting before trying to prime the filter to minimize the chance of air getting in the lines, or does this fitting serve some other purpose.
The filter:
the fitting on top of the filter housing:
2004 Rexhall Rose Air
2006 Jeep Grand Cherokee toad
|
dogvetia
moville iowa usa
Full Member
Joined: 08/16/2004
View Profile
Offline
|
just fill new filter with clean disel and bypass all the bleeding and cranking. I do this with my cummins as well as pickup and a couplr
e of farm tractors---bypasses a lot of messing around. tom
2004 Journey
2006 jeep commander
DW, 4 kids and 11 grandkids to camp with!!!!
|
kdk
usa
Full Member
Joined: 09/04/2008
View Profile
|
Ditto on the prefilling the filter. But remember to pour clean fuel into the ring of holes around the outside of the new filter as this is where the fuel enters the filter and exits through the center hole.. This will preclude getting unfiltered fuel into the injectors. KDK
|
Sully2
Cincinnati
Senior Member
Joined: 01/20/2003
View Profile
Good Sam RV Club
|
Many, MANY will tell you to NOT prefill the fuel filters for many reasons. But if you decide to do so...and I do....take a filter to the hardware store and get a long pipe nipple ( about 4") that will screw down into the top of the filter ( not all the way now...just enough to go in solidly) that way you CANT get additional dirt into the filter because ALL of the fuel goes into it AROUND the center hole!
2000 Country Coach Allure; Cummins ISC 330 HP; 71/2 - 8 MPG regardless
2002 Jeep Liberty
|
ROYBUCK
Newport NC
Senior Member
Joined: 11/12/2003
View Profile
Good Sam RV Club
Offline
|
Why pour fuel in the filter when cummins says not to. I just changed Two fuel filters on my Cummins no problem at all did not put fuel in filter. Roy
Roy B Coal Miners Son
USMC Ret
Semper Fi
|
|
|
barnaclebill
Atlanta, Michigan or towards the sun
Senior Member
Joined: 03/09/2005
View Profile
|
My Cummins manual (2003 400 turbo) states DO NOT prefill the fuel filter but turn the key to the on position and wait till the wait to start light goes out, I did that twice (just to be sure the filter was full) after changing the fuel filter and it started with no problems.
|
PandK
Greenville, SC
Full Member
Joined: 09/24/2003
View Profile
Good Sam RV Club
|
I have changed my fuel filter many times. I have never loosened the allen fitting or poured fuel in the filter.
The following directions are from the Cummins service tech:
1. Put new filter on dry.
2. Turn key to "on" for 20-30 seconds then turn "off". Do this TWO times.
3. Turn key to "on" position and "bump" starter (do not start engine) and turn key "off". Do this TWO times.
4. Start engine as normal
I have followed these directions each time and never had a problem. My Rexair has the Cummins ISC 360HP.
Paul and Karla
Cinnamon & Pequeno - our Chihauhuas
2004 Rexhall Rexair DP3955
2006 Scion tC
|
Deen
Vancouver, WA
Senior Member
Joined: 12/07/2000
View Profile
|
Why even THINK about not following the manufacturers instructions?
Follow what PandK above said!!
|
427435
Rochester, Mn
Senior Member
Joined: 11/12/2005
View Profile
|
The reason Cummins doesn't want a user to pre-fill the fuel filter is that for every 100 people that do this there will be 10-50 people that get dirt into the injection system. This is one time to do what the manufacturer says.
Mark
2000 Itasca Suncruiser 35U on a Ford chassis
2003 Ford Explorer toad with US Gear brakes,
ReadyBrute tow bar, and Demco base plate.
|
st687
tampa Fl
Senior Member
Joined: 10/09/2003
View Profile
|
I pre fill mine, I use a funnel with 6 coffee filters, no problems.
Doris &Bill
97 U270 Foretravel
05 Saturn Vue 265HP
University of Parris Island March 1966
Semper Fi.
|
|
|
