Advertisement
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Home Who's Online Today's Posts HP Calculator CompD Gift Shop Mark Forums Read
Go Back   Competition Diesel.Com - Bringing The BEST Together > Tech- General Diesel > General Diesel Tech
Register Members List Timeslips EFI Live Library Invite Your Friends FAQ Calendar Mark Forums Read

General Diesel Tech Farm equipment, Medium Duty, Big Rigs, and other General discussion can be found in here.

Reply
 
Thread Tools
Old 06-27-2018, 11:08 PM   #1
cntryby
 
cntryby's Avatar

Name: cntryby
Title: Rookie
Status: Not Here
Join Date: May 2010
Member`s Gallery
Posts: 26
8.3l CAPS Pump

I'm looking at a school bus with an 8.3 that has the CAPS pump. Will the pump from a tractor (I think) run it on the bus?

PES6P

If not what would be the best solution to make it trouble free and what cost would it be. (approximately)
  Reply With Quote
Old 06-28-2018, 06:48 AM   #2
Snedge
 
Snedge's Avatar

Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 15,326
An 8.3 ? Must be a hell of a school bus. I've seen a few videos on putting a P7100 in place of the CAPS pump. I believe there was a thread on that here years back. Maybe someone can dig that one up for you.
  Reply With Quote
Old 06-28-2018, 07:11 AM   #3
Signature600
 
Signature600's Avatar

Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,061
What's wrong with the CAPS pump? Until something happens to it, I'd run it. They aren't nearly as bad as everyone says as long as you don't let Cummins overcharge you to work on it.

Chris
__________________


THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply

  Reply With Quote
Old 06-28-2018, 07:12 AM   #4
cntryby
 
cntryby's Avatar

Name: cntryby
Title: Rookie
Status: Not Here
Join Date: May 2010
Member`s Gallery
Posts: 26
I found a thread or two but the guy that seemed to know what was needed was talking about tractors so I'm not sure its applicable.

Also, it was rather vague as they started talking details in e-mail or on the phone.
  Reply With Quote
Old 06-28-2018, 07:14 AM   #5
cntryby
 
cntryby's Avatar

Name: cntryby
Title: Rookie
Status: Not Here
Join Date: May 2010
Member`s Gallery
Posts: 26
Quote:
Originally Posted by Signature600 View Post
What's wrong with the CAPS pump? Until something happens to it, I'd run it. They aren't nearly as bad as everyone says as long as you don't let Cummins overcharge you to work on it.

Chris
Thats what I've been looking for but your the first to say it.
  Reply With Quote
Old 06-28-2018, 07:28 AM   #6
Snedge
 
Snedge's Avatar

Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 15,326
Quote:
Originally Posted by cntryby View Post
Thats what I've been looking for but your the first to say it.

It's not a bad fuel system. Filtration is the key to longevity.
  Reply With Quote
Old 06-28-2018, 07:35 AM   #7
Signature600
 
Signature600's Avatar

Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,061
Quote:
Originally Posted by cntryby View Post
I found a thread or two but the guy that seemed to know what was needed was talking about tractors so I'm not sure its applicable.

Also, it was rather vague as they started talking details in e-mail or on the phone.
Quote:
Originally Posted by cntryby View Post
Thats what I've been looking for but your the first to say it.
That was probably me...


We've figured out how to work on them without letting Cummins just replace the pump for $5800 plus labor.

Now, is it cheap when something goes wrong, not exactly, but you'll spend way more trying to make a P-pump fit than you'll spend to keep it running, IMHO.

I service probably 200 of them in Combines...only difference between them and a truck engine is the ECM.

I even have a Steinbauer chip for a QSC/ISC that I stole if you're looking for more power. Might have a 340hp ECM running around here too.
Chris
__________________


THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply

  Reply With Quote
Old 06-28-2018, 08:11 AM   #8
cntryby
 
cntryby's Avatar

Name: cntryby
Title: Rookie
Status: Not Here
Join Date: May 2010
Member`s Gallery
Posts: 26
Quote:
Originally Posted by Signature600 View Post
That was probably me...


We've figured out how to work on them without letting Cummins just replace the pump for $5800 plus labor.

Now, is it cheap when something goes wrong, not exactly, but you'll spend way more trying to make a P-pump fit than you'll spend to keep it running, IMHO.

I service probably 200 of them in Combines...only difference between them and a truck engine is the ECM.

I even have a Steinbauer chip for a QSC/ISC that I stole if you're looking for more power. Might have a 340hp ECM running around here too.
Chris
Man, that would be awesome.

Here's my situation, I found this school bus at a good price, has the 8.3 and Alison md3060, and suppose to be rust free, 190K on the odo. (no hours available)

I would have to fly out west and drive it home, 2000 miles

I will have a day to drive it around before I pay for it and leave to come home. I plan on:

frequent checks of the oil
smelling for fuel in the oil
monitoring the coolant temps
close eye on the trans fluid and temp (I'll take my infrared thermometer)
how the trans shifts
vibrations and or noises
keep checking the hubs for heat
the diff for heat
brake air pressure
power steering fluid
pre and post drive inspections for leaks
oil and filter change
air and fuel filter changes prior to leaving for home.


What else?

Last edited by cntryby; 06-28-2018 at 08:22 AM.
  Reply With Quote
Old 06-28-2018, 09:39 AM   #9
Signature600
 
Signature600's Avatar

Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,061
I'd say that's a pretty good list.

That is also a hell of a drivetrain for a school bus.
Chris
__________________


THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply

  Reply With Quote
Old 06-28-2018, 10:05 AM   #10
cntryby
 
cntryby's Avatar

Name: cntryby
Title: Rookie
Status: Not Here
Join Date: May 2010
Member`s Gallery
Posts: 26
Which would be better, 8.3 with md3060 and CAPS or 8.3l mechanical with mt643?


Can the MT643 be swapped to md3060 with a stand alone controller?
  Reply With Quote
Old 06-28-2018, 11:09 AM   #11
Signature600
 
Signature600's Avatar

Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,061
I have an MD3060 laying here off an 8.3L CAPS engine...no wiring, but the controller is there.


Personally, I would say the CAPS engine with the newer OD transmission, and deal with any potential CAPS problems if they happen. You'll like the newer transmission a lot better, IMHO.

Chris
__________________


THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply

  Reply With Quote
Old 06-28-2018, 11:13 AM   #12
Snedge
 
Snedge's Avatar

Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 15,326
Quote:
Originally Posted by Signature600 View Post

That is also a hell of a drivetrain for a school bus.
Chris
Must of been a school bus for giant children.
I'd like to see picture of the bus. I've never seen one with the 8.3.
  Reply With Quote
Old 06-28-2018, 11:24 AM   #13
Signature600
 
Signature600's Avatar

Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,061
No doubt.

Chris
__________________


THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply

  Reply With Quote
Old 06-28-2018, 11:29 AM   #14
cntryby
 
cntryby's Avatar

Name: cntryby
Title: Rookie
Status: Not Here
Join Date: May 2010
Member`s Gallery
Posts: 26
headache

Man I've been researching so much I have a headache.

I guessed I'm being a bit paranoid about the CAPS. There's just so many horror stories!

wah wahh I want everything... lol.

I know the p7100 is as bullet proof as the 8.3, I plan on driving this thing all over the country, probably even up to Alaska. I'm just wanting good power and stone cold reliability. Don't wanna be stranded in the middle of nowhere as an old man.
  Reply With Quote
Old 06-28-2018, 11:30 AM   #15
cntryby
 
cntryby's Avatar

Name: cntryby
Title: Rookie
Status: Not Here
Join Date: May 2010
Member`s Gallery
Posts: 26
Quote:
Originally Posted by Snedge View Post
Must of been a school bus for giant children.
I'd like to see picture of the bus. I've never seen one with the 8.3.

Hey now, don't be pick'n on the fat kids!
  Reply With Quote
Old 06-28-2018, 11:35 AM   #16
Signature600
 
Signature600's Avatar

Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,061
Quote:
Originally Posted by cntryby View Post
Man I've been researching so much I have a headache.

I guessed I'm being a bit paranoid about the CAPS. There's just so many horror stories!

wah wahh I want everything... lol.

I know the p7100 is as bullet proof as the 8.3, I plan on driving this thing all over the country, probably even up to Alaska. I'm just wanting good power and stone cold reliability. Don't wanna be stranded in the middle of nowhere as an old man.
Just leave it yellow and put some mannequins in the seats...everyone will stop to help.

Honestly, I wouldn't worry about the CAPS that much

Chris
__________________


THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply

  Reply With Quote
Old 06-28-2018, 02:59 PM   #17
Snedge
 
Snedge's Avatar

Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 15,326
Quote:
Originally Posted by cntryby View Post
Hey now, don't be pick'n on the fat kids!
I feel really bad about what McDonald's did to them.
  Reply With Quote
Old 06-28-2018, 04:14 PM   #18
cntryby
 
cntryby's Avatar

Name: cntryby
Title: Rookie
Status: Not Here
Join Date: May 2010
Member`s Gallery
Posts: 26
Quote:
Originally Posted by Snedge View Post
I feel really bad about what McDonald's did to them.
They should sue!
  Reply With Quote
Old 06-28-2018, 05:25 PM   #19
Snedge
 
Snedge's Avatar

Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 15,326
  Reply With Quote
Old 06-28-2018, 09:27 PM   #20
cntryby
 
cntryby's Avatar

Name: cntryby
Title: Rookie
Status: Not Here
Join Date: May 2010
Member`s Gallery
Posts: 26


  Reply With Quote
Reply

Thread Tools

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

Forum Jump


All times are GMT -5. The time now is 09:59 PM.

 


Powered by vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright ©2006 - 2018, CompetitionDiesel.com
all information found on this site is property of www.competitiondiesel.com