|
05-06-2012, 09:13 AM
|
#1
|
Member
Join Date: Dec 2011
Posts: 60
|
Location of secondary fuel filter on 2003 ISL
Pardon if this has previously been covered....a lot to wade thru in the search.
I have changed the primary fuel filter, trans fluid and filters and oil and oil filter on our 2003 Newmar Mountain Aire, but cannot locate a secondary fuel filter. The only location I have not looked (which involves pulling the bedroom floor cover) is near the top rear (actually front given it's backward orientation) of the engine......Am I on a wild goose chase, or does such a filter exist in my application ? Thanks
|
|
|
|
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
05-06-2012, 11:36 AM
|
#2
|
Senior Member
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,587
|
On the ISLs I have seen, the secondary is mounted on the engine block on the curb side, back toward the flywheel.
__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
|
|
|
05-06-2012, 12:17 PM
|
#3
|
Member
Join Date: Dec 2011
Posts: 60
|
Unless it is mounted toward the top of the block, it's not there....Im going to
pull the access plate in the bedroom and take a look from the top.....it is definitely elusive !
|
|
|
05-06-2012, 03:12 PM
|
#4
|
Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,563
|
Most 2003-2004 chassis don't have a secondary filter. Cummins allowed a single filter in those years and both Freightliner and Spartan did so. I guess it wasn't adequate, cause Cummins changed the spec back to primary + secondary around 2005.
By the way, this is not a Cummins question. The location of fuel filters is determined by the chassis builder, not Cummins.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
|
|
|
05-06-2012, 03:25 PM
|
#5
|
Senior Member
Texas Boomers Club
Join Date: Dec 2003
Location: Mo/Texas
Posts: 3,555
|
Our 2004 DSDP, ISL, on a 2003 Spartan chassis only has (1), a combo fuel filter/water separator. Have been wondering if a second filter could be added and what benefit, if any, would be accomplished.
|
|
|
05-06-2012, 03:25 PM
|
#6
|
Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
|
Our 2002 DSDP on Spartan does not have a secondary filter, just the primary one above the starter between the block and frame.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
|
|
|
05-07-2012, 06:19 AM
|
#7
|
Member
Join Date: Dec 2011
Posts: 60
|
It would appear that my application does not have a secondary, but Ill post in the Freightliner board just to confirm...Thanks !
|
|
|
05-07-2012, 03:50 PM
|
#8
|
Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,563
|
Some people have added a secondary, just to be sure that dirt never reaches the injection pump (which would likely ruin it). Odds are you would never have to change the secondary - it's mostly a fail safe if you have the single filter system.
In a two filter system, the primary is a water separator and coarse filter, while the secondary is a fine filter. In a single filter system, the one filter is both water separator and fine filter. It seems to be adequate in normal usage, but apparently Cummins (and Cat too) decided to go back tot he dual filter system for extra protection. I can only guess that some engines had dirt problems.
Most any diesel shop could add a secondary for you. Last I heard, it takes about $80-$100 in parts and a few hours labor to rig it up. Labor costs will vary by chassis type and model as well as the coach body (accessibility).
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
|
|
|
05-07-2012, 05:09 PM
|
#9
|
Senior Member
Join Date: Nov 2010
Posts: 475
|
Quote:
Originally Posted by Gary RVRoamer
Some people have added a secondary, just to be sure that dirt never reaches the injection pump (which would likely ruin it). Odds are you would never have to change the secondary - it's mostly a fail safe if you have the single filter system.
In a two filter system, the primary is a water separator and coarse filter, while the secondary is a fine filter. In a single filter system, the one filter is both water separator and fine filter. It seems to be adequate in normal usage, but apparently Cummins (and Cat too) decided to go back tot he dual filter system for extra protection. I can only guess that some engines had dirt problems.
Most any diesel shop could add a secondary for you. Last I heard, it takes about $80-$100 in parts and a few hours labor to rig it up. Labor costs will vary by chassis type and model as well as the coach body (accessibility).
|
We have a Yanmar diesel in a sailboat...it has two filters too.
__________________
2008 AC Allegiance 42G, Spartan, ISL
|
|
|
05-07-2012, 05:17 PM
|
#10
|
Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
|
Quote:
Originally Posted by Gary RVRoamer
Most 2003-2004 chassis don't have a secondary filter. Cummins allowed a single filter in those years and both Freightliner and Spartan did so. I guess it wasn't adequate, cause Cummins changed the spec back to primary + secondary around 2005.
By the way, this is not a Cummins question. The location of fuel filters is determined by the chassis builder, not Cummins.
|
Must have been the '02's also as we (supposedly) got the last '02 MM chassis that Newmar had to build on.
Our 2000 DSDP on FL had two filters.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
|
|
|
05-11-2012, 03:18 PM
|
#11
|
Senior Member
Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,385
|
I believe Cummins will configure any engine for water separator type single filter, and the decision to add a second is the vehicle mfgr's (they call them OEM's) decision. My 06 m.y. coach had single on an ISL, remote mounted. The engine came w/a remote-mount filter head on the engine, for piping to the remote filter & back.
My o8 rig has a standard Cummins mount filter on the PS of engine, and remote w/water separator where I can drain it to check fuel status.
__________________
Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
|
|
|
05-17-2012, 07:17 PM
|
#12
|
Senior Member
Texas Boomers Club
Join Date: Dec 2003
Location: Mo/Texas
Posts: 3,555
|
Had the anti-freeze and trans fluid changed on Wed, 5/16/12 and spoke with the service mgr at the Cummins-Onan shop about adding a second fuel filter. Looks to be about a $300-350 dollar bill so am going to most likely get it done soon. Thanks everyone for your input and advice.
|
|
|
05-17-2012, 07:27 PM
|
#13
|
Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
|
Quote:
Originally Posted by JC2
Had the anti-freeze and trans fluid changed on Wed, 5/16/12 and spoke with the service mgr at the Cummins-Onan shop about adding a second fuel filter. Looks to be about a $300-350 dollar bill so am going to most likely get it done soon. Thanks everyone for your input and advice.
|
I've thought about doing it but in 10 years I've never had any fuel/filter related trouble nor have I had the "water in fuel" light come on.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|