Reply
 
Thread Tools Display Modes
 
Old 10-21-2018, 03:11 PM   #11
Almost There
 
Bon Voyage's Avatar
 
Join Date: Dec 2016
Location: Calgary, Alberta
Posts: 77
Year: 2001
Coachwork: Thomas
Chassis: Freightliner
Engine: Cummins ISC 260/660
Rated Cap: 81
Quote:
Originally Posted by TJones View Post
I've been doing some research on the early ISC CAPS injection pumps. They will last longer if a low pressure fuel pump around 15 psi is placed at the fuel tank. This pushes fuel to the CAPS pump preventing it from pulling in air if there is a leak in the fuel line. It also pushes more fuel through the CAPS pump which improves cooling of the pump. I havn't had a chance to check my bus to see if it has an additional pump but it does have a fuel filter next to the fuel tank so I'm thinking it might.

Ted
Thatís interesting. Iíll have to read more about this too. Do you have any links Ted?
Bon Voyage is offline   Reply With Quote
Old 10-21-2018, 07:33 PM   #12
Bus Geek
 
Tango's Avatar
 
Join Date: Mar 2011
Location: Houston, Texas
Posts: 7,919
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
If it is a 5.9 that is nonsense. You can add nearly 50 hp with a screwdriver and no parts on a 4BT. More on a six. Check out the many Cummins forums (such as 4BTswaps.com). Between the smoke screw and timing you can do a surprising upgrade and often pick up a few mpg's in the process.
Tango is online now   Reply With Quote
Old 10-21-2018, 07:34 PM   #13
Bus Geek
 
EastCoastCB's Avatar
 
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 15,587
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
Quote:
Originally Posted by Tango View Post
If it is a 5.9 that is nonsense. You can add nearly 50 hp with a screwdriver and no parts on a 4BT. More on a six. Check out the many Cummins forums (such as 4BTswaps.com). Between the smoke screw and timing you can do a surprising upgrade and often pick up a few mpg's in the process.
See thread title.
__________________
.
Roll Your Own Build Thread
EastCoastCB is offline   Reply With Quote
Old 10-21-2018, 10:59 PM   #14
Skoolie
 
Join Date: Jul 2017
Location: Rapid City, SD
Posts: 135
Year: 2001
Coachwork: Blue Bird
Chassis: All American?
Engine: ISC 8.3 L 260 hp
Rated Cap: 36
Quote:
Originally Posted by Bon Voyage View Post
Thatís interesting. Iíll have to read more about this too. Do you have any links Ted?
Here is a thread discussimg the problem.

Repeating CAPS Failures - Need Help - iRV2 Forums


Ted
TJones is online now   Reply With Quote
Reply

Tags
8.3, cummins, electronic, isc, mechanical

Thread Tools
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


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 10:17 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions, Inc.