RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Newmar Owner's 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 09-03-2006, 05:49 PM   #1
Senior Member
 
Lug_Nut's Avatar


 
Join Date: May 2005
Location: British Columbia
Posts: 3,827
One thing I noticed on the new ISM is the seemingly short pre-heat light time. If you turn on the ignition the pre-heat light goes out in 3 seconds along with all the other warning light tests.

To confirm this was the way it was, I went to the dealer today and tried it on a MADP '07 with the ISM. It was the same, just as quick.

My last coach, a DSDP '02, took about 5 seconds and showed deflection in the volt meter on an off for about a minute or two even after start. This showed it was heating the grid until it showed it was getting warm.

I also noted that because the '02 had intake grid heating no starting aid could be used. The '07 engine manual indicates starting aids may in some cases be acceptable.

So, how does the '07 pre-heat the combustion chamber or intake? Is this an EPA thing?
__________________

__________________
Peter - Doctor of Mixology
KADB 2013
Lug_Nut 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 09-03-2006, 05:49 PM   #2
Senior Member
 
Lug_Nut's Avatar


 
Join Date: May 2005
Location: British Columbia
Posts: 3,827
One thing I noticed on the new ISM is the seemingly short pre-heat light time. If you turn on the ignition the pre-heat light goes out in 3 seconds along with all the other warning light tests.

To confirm this was the way it was, I went to the dealer today and tried it on a MADP '07 with the ISM. It was the same, just as quick.

My last coach, a DSDP '02, took about 5 seconds and showed deflection in the volt meter on an off for about a minute or two even after start. This showed it was heating the grid until it showed it was getting warm.

I also noted that because the '02 had intake grid heating no starting aid could be used. The '07 engine manual indicates starting aids may in some cases be acceptable.

So, how does the '07 pre-heat the combustion chamber or intake? Is this an EPA thing?
__________________

__________________
Peter - Doctor of Mixology
KADB 2013
Lug_Nut is offline   Reply With Quote
Old 09-04-2006, 10:19 AM   #3
Administrator Emeritus
 
rebelsbeach's Avatar


 
Join Date: Dec 2003
Location: Virginia Beach, VA
Posts: 10,033
Peter,

HERE'S somewhere we can start looking....it's a Cummins ISM page...I'm still looking.
__________________
2019 Grand Design Solitude 380FL fifth wheel
2017 40' Renegade Verona LE LTS (traded)
2018 F150 King Ranch Crew Cab Diesel
rebelsbeach is offline   Reply With Quote
Old 09-04-2006, 11:54 AM   #4
Member
 
Join Date: Nov 2005
Posts: 47
rebelsbeach

Nice ISL Link, tks ---OOPS, Wrong link for me, tks anyway
we_rv is offline   Reply With Quote
Old 09-06-2006, 10:57 AM   #5
Senior Member
 
Lug_Nut's Avatar


 
Join Date: May 2005
Location: British Columbia
Posts: 3,827
I spoke to Bob, Rebelsbeach, today. He and his freind were near Gary Ind. on I80 heading for Newmar.
His freind was familiar with the "no glow plug like starting" of the ISM engine and says it is normal. Apparently it uses a different priciple in the starting sequence. I can't explain it as I really don't quite understand it.

Perhaps Bob, or Bob's freind can post a description we can grip.

Anyway, Bob is still kicking, currently without his computer during his travels, so I guess we'll here all about his journey when he returns. He did have some very graphic descriptions of the ISL failure in the coach they are bring home. It should make interesting posts when he's back.
__________________
Peter - Doctor of Mixology
KADB 2013
Lug_Nut is offline   Reply With Quote
Old 09-07-2006, 04:21 PM   #6
Administrator Emeritus
 
rebelsbeach's Avatar


 
Join Date: Dec 2003
Location: Virginia Beach, VA
Posts: 10,033
Peter, when I called you we had left the Sioux Falls Cummins dealer and were in transit back home..

My friend Jeff and I had indeed spoken to Chad, who is the service manager at the Sioux Falls Cummins dealer and I'll paraphrase as best I can....

ISL engines and smaller.....have preheat.

ISM and above use a "sensor" of some sort that measures temperature and barometric pressure to "sense" the amount of fuel needed to start and just how to "set" the parameters to start the engine...Thus, there is NO preheat in ISM and above...

Maybe our new "diesel-mech" member can help me out??
__________________
2019 Grand Design Solitude 380FL fifth wheel
2017 40' Renegade Verona LE LTS (traded)
2018 F150 King Ranch Crew Cab Diesel
rebelsbeach is offline   Reply With Quote
Old 09-07-2006, 05:12 PM   #7
Junior Member
 
diesel-mech's Avatar
 
Join Date: Sep 2006
Posts: 3
when you turn the key over the ecm checks intake manifold temp and based on temp turns on the wait to start light and energizes the intake heater grids then you can start it and depending how cold it might be it can continue to energize for several minutes after restart
diesel-mech is offline   Reply With Quote
Old 09-08-2006, 02:59 AM   #8
Senior Member
 
Lug_Nut's Avatar


 
Join Date: May 2005
Location: British Columbia
Posts: 3,827
Diesel-Mech, That's the way my '02 DSDP operated, however the ISM does not seem to function in that manner.
On the DSDP I could actually see heavy deflection of the voltage guage when the grid cut on and off. On the Essex, no such voltage draw is apparent.
__________________
Peter - Doctor of Mixology
KADB 2013
Lug_Nut is offline   Reply With Quote
Old 09-08-2006, 03:26 AM   #9
Administrator Emeritus
 
rebelsbeach's Avatar


 
Join Date: Dec 2003
Location: Virginia Beach, VA
Posts: 10,033
Peter, I do believe he is describing the ISL and below still....I agree with you there's no deflection in gauges.
__________________

__________________
2019 Grand Design Solitude 380FL fifth wheel
2017 40' Renegade Verona LE LTS (traded)
2018 F150 King Ranch Crew Cab Diesel
rebelsbeach is offline   Reply With Quote
Reply



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
Engine Pre-Lubricator - Pre-Lube Engine Oiler Doggy Daddy MH-General Discussions & Problems 2 06-22-2008 02:55 AM
Dish Net Work Pre-paid SteveG Technology: Internet, TV, Satellite, Cell Phones, etc. 18 05-06-2008 05:43 PM
Pre heat light RotorWing iRV2.com General Discussion 4 01-03-2008 02:49 AM
Cat Engine Pre heat The Sunde's Winnebago Industries Owner's Forum 11 12-28-2007 03:21 PM
Pre heat light RotorWing Cummins Engines 6 10-31-2007 05:52 AM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:31 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.