RV Trip Planning Discussions

Go Back   iRV2 Forums > THE CHASSIS CLUB FORUMS > Spartan Motorhome Chassis Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 09-25-2020, 10:41 AM   #1
Epp
Junior Member
 
Join Date: Aug 2020
Posts: 10
Replacing the lift/transfer pump on a Cummins engine

Hi everyone, it looks like I need to replace my lift/transfer pump on my Cummins engine. I have a 99 Newmark Dutch star on the spartan chassis with the Cummins ISC engine. Iíve done quite a bit of reading on the form here about ordering and changing the pump out, but what I did not see, or I missed it, is; can you just remove the three hex bolts on top of the mounting bracket, unplug the electrical connector and drop the pump out? And then reverse this for installing the new pump? I understand I would have to make sure I got all the residual gasket material off between the old pump and the manifold.

Other than physical access to the location on the engine, is it this simple of a job?
Thanks in advance,
Epp
Epp is offline   Reply With Quote
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!

Old 09-25-2020, 12:21 PM   #2
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 20,763
Some members report that the replacement pumps are only available with the manifold .

But I'm thinking that just the pump , has to be available .
Yes the three bolts and electrical connection is all that's required .

Did you happen on my post with supplier info for those who require the gasket only as the part is no longer available from Cummins.

http://www.irv2.com/forums/f123/isc-...et-490205.html
Attached Thumbnails
Click image for larger version

Name:	Isc lift pump.jpg
Views:	4
Size:	91.2 KB
ID:	302301  
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 09-25-2020, 12:35 PM   #3
Senior Member
 
Old Scout's Avatar
 
Join Date: Nov 2005
Posts: 6,056
….,Don't think its quite that simple--the pump and manifold come as a single assembly, so you have to remove the pump mounting bracket from the side of the engine [not the 3 manifold bolts on top]...The pumps are also shipped with a generic hose manifold config so you have to open some inlet/outlets and plug others to match your fuel hose config....old hoses tend to harden over time so it often difficult to reconnect the "shortened" OEM hoses....also watch for leaks on the injection pump banjo fittings....Lastly, access and other engine components tend to block or restrict access to the pump.....this is often not an easy task to accomplish on RVs...
__________________
Old Scout
2003 Alpine 40' MDTS
New Braunfels, Texas
Old Scout is offline   Reply With Quote
Old 09-25-2020, 03:29 PM   #4
Epp
Junior Member
 
Join Date: Aug 2020
Posts: 10
Quote:
Originally Posted by Skip426 View Post

Did you happen on my post with supplier info for those who require the gasket only as the part is no longer available from Cummins.

http://www.irv2.com/forums/f123/isc-...et-490205.html
Yes I did, and I appreciate it.

I spent the last day or so on and off reading about the FASS & air dog pumps, And I remember seeing your post about the gaskets.

I think I am going to go down the route of the auxiliary fuel filters andpump but I did want to address the gasket on my rig since I believe it is original to 2001.
Epp is offline   Reply With Quote
Old 09-25-2020, 03:31 PM   #5
Epp
Junior Member
 
Join Date: Aug 2020
Posts: 10
This was one of the reasons I wanted to leave the original manifold and the hoses alone. I was thinking just remove the new pump from the new manifold and bolting it in place on the old manifold. This is if I don’t go down the road of just replacing the gasket.
Epp is offline   Reply With Quote
Old 09-26-2020, 08:23 PM   #6
Senior Member
 
Ray,IN's Avatar
 
Join Date: Aug 2001
Location: North America somewhere
Posts: 20,734
Quote:
Originally Posted by Old Scout View Post
….,Don't think its quite that simple--the pump and manifold come as a single assembly, so you have to remove the pump mounting bracket from the side of the engine [not the 3 manifold bolts on top]...The pumps are also shipped with a generic hose manifold config so you have to open some inlet/outlets and plug others to match your fuel hose config....old hoses tend to harden over time so it often difficult to reconnect the "shortened" OEM hoses....also watch for leaks on the injection pump banjo fittings....Lastly, access and other engine components tend to block or restrict access to the pump.....this is often not an easy task to accomplish on RVs...
I have the same ISC 350 engine, the lift pump is a difficult place to access, I had to remove the starter to gain access from underneath, and stand on my head from under the bed.
Consequently I decided to have the lift pump replaced by a local HDT repair shop. Total cost $3K, including all new hoses.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
Ray,IN is offline   Reply With Quote
Old 09-28-2020, 06:59 PM   #7
Member
 
Join Date: Jun 2010
Location: Hadley NY
Posts: 71
I had to remove the assembly as a complete unit. Cummins only sells it as a unit, I think it was around $350 to $400 for the pump assembly. I pulled up the bedroom floor and could lay down and reach it easily. Have to remove all the fuel lines and electric wire, remove mount from side of motor and install new unit in reverse order. Only took me a few hours to do the job. Hope your job goes as well as mine did
__________________
Not here for a long time, Here for a good time!!
DicknBambi
2001 DSDP 4095. 24ft Look car hauler 2004 Excape
DicknBambi is offline   Reply With Quote
Reply

Tags
cummins, engine



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Transfer Pump / Lift Pump ? BobJones Monaco Owner's Forum 31 09-17-2020 04:29 PM
Cummins ISM engine versus Cummins Non ISM engine gimlimike Newmar Owner's Forum 4 08-06-2017 04:39 AM
ISC Lift/Transfer Pump Spilled Guts out! Krash Cummins Engines 3 05-06-2017 07:29 AM
Cummins lift pump garybtt Freightliner Motorhome Chassis Forum 5 06-03-2007 12:00 PM
Engine Fuel Transfer/Lift Pump Failure Question jetar Alpine Coach Owner's Forum 7 01-13-2007 08:35 AM


All times are GMT -6. The time now is 06:03 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.