RV Trip Planning Discussions

Go Back   iRV2 Forums > POWER TRAIN GARAGE FORUMS > Cummins Engines
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-22-2018, 02:15 AM   #15
Senior Member
 
vito.a's Avatar
 
Monaco Owners Club
Join Date: Oct 2009
Location: Tucson, AZ
Posts: 2,825
Mr D this is disturbing for all of us ISX owners.
The chromium and silicone levels are still within noise level of the last reading unless they continue to rise. I agree with Tom in changing the oil and taking another sample at 1000 miles.
How many miles on it since the last oil sample check and then since the last rebuild?

But, the iron level doubling is not good. Almost sounds like a liner scuffing like the one in Ron's pictures. Another possibility is the coating on the piston skirt may also be chromium with silicone.

This is a list of the ISX piston and liner updates but does not get into the coating specifics.
https://highwayandheavyparts.com/n-1...x-engines.html
__________________

__________________
97 Monaco Windsor- Sold
07 Monaco Executive McKinley- Sold
04 Monaco Signature Chateau IV
vito.a 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 11-22-2018, 06:52 AM   #16
Senior Member
 
Unplanned's Avatar
 
Join Date: May 2016
Location: Kamloops, BC, 60 miles from the Center of the Universe
Posts: 2,581
Quote:
Originally Posted by Mr_D View Post
Mark:
I have no idea what changes Cummins made to the head over the last couple years.
I'm figuring at least $25,000 if I do a preemptive rebuild.
I am planning on selling the house next year and going full time and I'd really like the MH to be reliable!
I'm not sure what changes have been made lately, I have been out of the loop for 7 years since I retired. Maybe Macwrench will chime in. I think he is still working.
I could talk to the warranty manger where I used to work at Peterbilt if you don't get any answers.
Happy Glamping.
__________________

__________________
2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with GSXR 1100T or KLR650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
Unplanned is online now   Reply With Quote
Old 11-22-2018, 07:45 AM   #17
Senior Member
 
Mark D's Avatar
 
Join Date: Nov 2016
Posts: 553
Quote:
Originally Posted by Mr_D View Post
Mark:
I have no idea what changes Cummins made to the head over the last couple years.
I'm figuring at least $25,000 if I do a preemptive rebuild.
I am planning on selling the house next year and going full time and I'd really like the MH to be reliable!
Based on that type of change it may be good piece of mind. If you plan on 25k and it's less yippee but I would be shocked if it's more than that.

How good is your local Cummins shop? Maybe they can tell you what the reasons behind the increased levels?

Good luck either way.
__________________
2011 American Coach, American Eagle 45B with 650hp ISX on a Liberty (Mountain Master Chassis K3 Tag) with two Vizsla's and two cats.....
Mark D is offline   Reply With Quote
Old 11-22-2018, 03:08 PM   #18
Senior Member
 
Mr_D's Avatar
 
Country Coach Owners Club
Winnebago Owners Club
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 34,271
Quote:
Originally Posted by vito.a View Post
Mr D this is disturbing for all of us ISX owners.
The chromium and silicone levels are still within noise level of the last reading unless they continue to rise. I agree with Tom in changing the oil and taking another sample at 1000 miles.
How many miles on it since the last oil sample check and then since the last rebuild?

But, the iron level doubling is not good. Almost sounds like a liner scuffing like the one in Ron's pictures. Another possibility is the coating on the piston skirt may also be chromium with silicone.

This is a list of the ISX piston and liner updates but does not get into the coating specifics.
https://highwayandheavyparts.com/n-1...x-engines.html
Original rebuild was 09/29/2010 19,082, dropped intake valve #6, new turbo too
Second turbo 10/29/2010 20,386 miles

Then we bought it
Purchased 02/15/2015 42,625 miles
Blew up 03/10/2015 45,154 miles dropped intake valve #6
oil sample #1 06/10/2017 mileage not recorded, can look in my fuel records and get close.
oil sample #2 10/10/2017 49,831 miles
oil sample #3 11/15/2018 51,502

Wife's poor health and death is the reason for not much use in 2015 and 2016.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote
Old 11-22-2018, 03:10 PM   #19
Senior Member
 
Mr_D's Avatar
 
Country Coach Owners Club
Winnebago Owners Club
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 34,271
Quote:
Originally Posted by Mark D View Post
Based on that type of change it may be good piece of mind. If you plan on 25k and it's less yippee but I would be shocked if it's more than that.

How good is your local Cummins shop? Maybe they can tell you what the reasons behind the increased levels?

Good luck either way.
Won't take it to the Portland OR Cummins shop. Too much damage to the rig that they refused to stand behind. Probably take it to Cummins in Coburg OR even though it's 100 miles away.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote
Old 11-22-2018, 06:01 PM   #20
Senior Member
 
Winnebago Owners Club
Join Date: Jun 2012
Location: British Columbia
Posts: 534
Quote:
Originally Posted by Mr_D View Post
Won't take it to the Portland OR Cummins shop. Too much damage to the rig that they refused to stand behind. Probably take it to Cummins in Coburg OR even though it's 100 miles away.
I had to have mine towed to the Cummins facility in Sumner Washington for a new ECM. They were exceptional. Extremely good service. They worked with my warranty company and got the bill down to a reasonable number for me, throwing as much as they could at the warranty. And the job was well done. You might wanna give them a try.

Sorry to hear of your troubles.
__________________
2008 Newmar Dutchstar 4023, 425hp Cummins ISL
SOLD: 2005 Winnebago Journey 39K, 350HP C-7 Cat
Toad: Flat deck car trailer hauling a 1932 ford tudor sedan
Deucenut is offline   Reply With Quote
Old 11-26-2018, 03:16 PM   #21
Senior Member
 
Mr_D's Avatar
 
Country Coach Owners Club
Winnebago Owners Club
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 34,271
It appears that I have ALL the original parts and none of the new ones that came out to alleviate the problem so all they can say it can happen again. This is not good news for me!!

In service date 03/10/2009

Original rebuild was 09/29/2010 19,082, dropped intake valve #6, new turbo too
Second turbo 10/29/2010 20,386 miles

Then we bought it
Purchased 02/15/2015 42,625 miles
Blew up 03/10/2015 45,154 miles dropped intake valve #6
oil sample #1 06/10/2017 mileage not recorded, can look in my fuel records and get close.
oil sample #2 10/10/2017 49,831 miles
oil sample #3 11/15/2018 51,502

Wife's poor health and death is the reason for not much use in 2015 and 2016.

First failure was after only 1 1/2 years and 19,000 miles and I'm at 2 1/2 years and about 6,300 miles since the second rebuild.

Small claims court is not an option as the limit is $5,000 and there is no legal backing to collect it. Been there and done that with two car wrecks and never collected a dime from either party.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote
Old 11-26-2018, 03:22 PM   #22
RV Mutant #172
 
Electra 225's Avatar


 
Newmar Owners Club
Winnebago Owners Club
Ford Super Duty Owner
Freightliner Owners Club
Join Date: Feb 2014
Posts: 3,408
They'd probably tell me where to go, but I'd be saying to them.....well, looks like another rebuild with the current parts on their dime treating it as a recall so to speak. How do you know when they're going to redesign parts? And....if there's no issue, then WHY redesign the parts. They KNOW in time yours will fail again.
__________________
BILL {aka-"Admiral"-"Deuce"-"W.D."}
2014 Itasca Ellipse 42QD,
Freightliner Maxum, 450HP Cummins ISL, 3000 Allison,
Roadmaster Nighthawk II towing a 2011 Lincoln MKX.
2012 Newmar Canyon Star (first coach) FMCA F428511/ Good Sam/ Passport America.
Electra 225 is offline   Reply With Quote
Old 11-26-2018, 06:28 PM   #23
Senior Member
 
Mark D's Avatar
 
Join Date: Nov 2016
Posts: 553
Quote:
Originally Posted by Mr_D View Post
It appears that I have ALL the original parts and none of the new ones that came out to alleviate the problem so all they can say it can happen again. This is not good news for me!!

In service date 03/10/2009

Original rebuild was 09/29/2010 19,082, dropped intake valve #6, new turbo too
Second turbo 10/29/2010 20,386 miles

Then we bought it
Purchased 02/15/2015 42,625 miles
Blew up 03/10/2015 45,154 miles dropped intake valve #6
oil sample #1 06/10/2017 mileage not recorded, can look in my fuel records and get close.
oil sample #2 10/10/2017 49,831 miles
oil sample #3 11/15/2018 51,502

Wife's poor health and death is the reason for not much use in 2015 and 2016.

First failure was after only 1 1/2 years and 19,000 miles and I'm at 2 1/2 years and about 6,300 miles since the second rebuild.

Small claims court is not an option as the limit is $5,000 and there is no legal backing to collect it. Been there and done that with two car wrecks and never collected a dime from either party.
It looks like you have an updated valve but not the seat. When I was researching this I found a write up by an engine rebuild association. It showed what changed by part number and when. I couldn't upload the PDF but google "cummins tb040318-2". It shows new valve in that head, but the seats where not introduced until Sept 2016. Not sure if a failing seat can cause the same type of failure but it can add to other failures.

Good luck.
__________________
2011 American Coach, American Eagle 45B with 650hp ISX on a Liberty (Mountain Master Chassis K3 Tag) with two Vizsla's and two cats.....
Mark D is offline   Reply With Quote
Old 11-26-2018, 06:42 PM   #24
Senior Member
 
Mr_D's Avatar
 
Country Coach Owners Club
Winnebago Owners Club
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 34,271
I have that rebuilders papers along with the original Cummins TSB150130.
Possibly I do have the new intake valve. My paperwork just shows the head as being 4331387RX and it came out 06 Aug 2014 with no info on valve part numbers.

The Cummins TSB says that
Quote:
ISX Intake Valve Chordal Failures - QSOL Reference: TSB150130. Under severe operating conditions, acidic corrosion and thermal stresses induced in the intake valve can initiate fatigue cracking which, over time, can propagate until a portion of the intake valve separates from the valve head and enters the cylinder. This type of valve failure is commonly known as a chordal failure. Once failed, performance of the engine is compromised and progressive damage to the piston, cylinder liner, cylinder head and turbocharger can occur. Typical complaints following intake valve chordal failures include but are not limited to check engine light, low engine power, cylinder misfire, “popping” noise from the air intake manifold, excessive engine noise, and engine shut down and no start conditions.
ISX's in truck go 500,000 miles with usually no trouble hauling up to 110,000#'s but a 50,000# motorhome being driven as per normal driving goes 12,000 to 19,000 miles and breaks valves off?
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote
Old 11-27-2018, 08:10 AM   #25
Senior Member
 
Mark D's Avatar
 
Join Date: Nov 2016
Posts: 553
Quote:
Originally Posted by Mr_D View Post
I have that rebuilders papers along with the original Cummins TSB150130.
Possibly I do have the new intake valve. My paperwork just shows the head as being 4331387RX and it came out 06 Aug 2014 with no info on valve part numbers.

The Cummins TSB says that

ISX's in truck go 500,000 miles with usually no trouble hauling up to 110,000#'s but a 50,000# motorhome being driven as per normal driving goes 12,000 to 19,000 miles and breaks valves off?
So far the temps are down on mine on average and also the rear bath is cooler at then end of the day. We will be in Florida in a month and that will be the true temp test.

I did have a new EGR cooler installed that is part of the puzzle per the ISX people on Facebook.
__________________
2011 American Coach, American Eagle 45B with 650hp ISX on a Liberty (Mountain Master Chassis K3 Tag) with two Vizsla's and two cats.....
Mark D is offline   Reply With Quote
Old 11-27-2018, 08:50 AM   #26
Senior Member
 
guardrail53's Avatar
 
Monaco Owners Club
Vintage RV Owners Club
Join Date: Sep 2014
Location: anywhere U.S.A, Currently back home in Thailand!
Posts: 3,025
Mr. D, I can't imagine the stress you are going thru, worrying about this ongoing problem! It sure would take the enjoyment and fun out of driving your sweet MH! I sure hope Cummins steps up and does you right! Good luck! Rail!
__________________
Retired, and "Always on Holiday!"
1996 Monaco Windsor 38PB, "Mona" 275 HP., 8.3 Cummins, 3060 Allison 6 speed, 2001 PT Cruiser, "Bailey"
guardrail53 is online now   Reply With Quote
Old 11-27-2018, 09:16 AM   #27
Senior Member
 
1doodadd's Avatar
 
Join Date: Dec 2016
Location: So Cal
Posts: 940
Quote:
Originally Posted by Mr_D View Post
I have that rebuilders papers along with the original Cummins TSB150130.
Possibly I do have the new intake valve. My paperwork just shows the head as being 4331387RX and it came out 06 Aug 2014 with no info on valve part numbers.

The Cummins TSB says that

ISX's in truck go 500,000 miles with usually no trouble hauling up to 110,000#'s but a 50,000# motorhome being driven as per normal driving goes 12,000 to 19,000 miles and breaks valves off?

Mr_D, Here in the state of California the ISX will haul more than 110,000 lbs. in the class 8 truck. If I had a Caterpillar 657G scraper on the weight of just the LOAD is over 160,000 lbs. and that does not include the truck and trailer.

A 9 axle here in CA axle weight limits are as follows. Front axle 22,000 lbs. drivers 46,725 lbs. First grouping of 16 tires, 2 axles, is 60,000 lbs. Second grouping of 16 tires, 2 axles, is 60,000 lbs. The third 2 axle set is also 60,000 lbs. Thats what is known as a 9 axle lowbed here in CA. The engine is known for being a work horse and has a better track record in class 8 trucks and I don't know what has happened to the rv industry motors.

Sorry again for your problems the 3rd time. It may be cheaper to switch to a Detroit this time over another rebuild
__________________
2000 42' BEAVER MARQUIS AMETHYST w/tag 2 SLIDES CAT C12 425 hp ALLISON HD 4060 HURRICANE HEATER ONAN 10000 kw
1doodadd is online now   Reply With Quote
Old 11-27-2018, 09:22 AM   #28
Senior Member
 
Unplanned's Avatar
 
Join Date: May 2016
Location: Kamloops, BC, 60 miles from the Center of the Universe
Posts: 2,581
Mr. D, have you looked into this?

https://www.m18performance.com/produ...cm870-stg1.htm

Sounds like it might be your answer if you don't put many miles on. I'm pretty sure that there are a lot running around using a delete kit. Might be a bit frowned upon, but who will ever know?

Happy Glamping.
__________________

__________________
2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with GSXR 1100T or KLR650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
Unplanned is online now   Reply With Quote
Reply

Tags
ems, problem, problems



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
Cummins ISX-12 & ISX-15, fuel "economy" JMonroe Cummins Engines 13 07-07-2015 09:20 PM
Women drivers....again....blondes again mick RV'ing Humor & Crazy but True Stories 3 07-18-2012 02:23 PM
Home again, home again.. Sandman iRV2.com International Rally 35 10-14-2011 01:54 PM
On again -- off again internet satellite access... Wandrin New Horizons Owners Forum and NHOG 3 07-31-2007 05:56 PM
Home again Home again jiggity jig Chandler Bing Winnebago Industries Owner's Forum 2 03-02-2006 05:49 AM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 08:46 AM.


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