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09-22-2017, 02:11 PM
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#1
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Senior Member
Join Date: Sep 2010
Posts: 4,505
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Time to remind owners to check coolant for DCA/SCA
A number of Cummins owners are having major problems with cavitation problems with wet sleeve liners on C, L, M and even X engines. Cummins diesel owners with these engines need to check their coolant with test strips to see if they have sufficient DCA ( Diesel Coolant Additive) also called SCA to protect their cylinder liners from cavitation which cause small holes in liners which lets coolant into cylinders. Make sure you know what coolant you have and that your engine is protected. This can be in 10K$ of damage.
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09-22-2017, 02:15 PM
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#2
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Registered User
Join Date: Oct 2011
Posts: 2,183
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[attach]177460
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09-22-2017, 08:53 PM
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#3
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Senior Member
Join Date: Jul 2011
Posts: 264
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Regardless of the fact that your friendly service shop of choice says they check DCA/SCA, you need to check this yourself. I learned a very expensive lesson the hard way about this.
__________________
Todd
2011 Itasca Ellipse 42QD
112K miles and counting
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09-22-2017, 10:19 PM
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#4
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Senior Member
Join Date: Sep 2010
Posts: 4,505
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Todd is the one right now dealing with this problem. It would be good for all to hear about what he is dealing with and how much it has cost him.
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09-22-2017, 11:58 PM
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#5
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Senior Member
Join Date: Aug 2010
Posts: 2,772
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Is this limited to just Cummins, are Cat immune?
__________________
Terry & Alice
2006 Bounder 38L DP
2012 GMC Terrain
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09-23-2017, 12:26 AM
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#6
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Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Aug 2006
Location: MotherLoad foothills approx.60 m.s east of Sacramento
Posts: 1,281
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Make sure that the test strips are not expired. Last year I bought some from Bakersfield Ca Cummins that were already expired when they shoved them across the counter.
__________________
Full time since Nov 2012 RVM#41 Gary and Marian Hill 2001 Monaco Dynasty Jack 38' 370 hp ....If it ain't broke I can still fix it.
Like putting shoes on an octopuss, so are the days of our lives....
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09-23-2017, 08:49 AM
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#7
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Senior Member
Join Date: Sep 2010
Posts: 4,505
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Cat engines other then C7 can also have cavitation issues too. With a diesel engine your coolant is more important then in gas engines because of the wet liners. The first thing is you need to know what coolant you have in your engine and then at least once a year check your coolant to make sure this cavitation concern isn't a problem on your engine. There are owners with 5 year old engines with less then 50K of have major damage done to their diesel engines.
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09-23-2017, 02:06 PM
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#8
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Senior Member
Join Date: Jul 2011
Posts: 264
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Quote:
Originally Posted by tom chelbana
Todd is the one right now dealing with this problem. It would be good for all to hear about what he is dealing with and how much it has cost him.
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Detailed here in my initial and most recent update to this thread:
http://www.irv2.com/forums/f123/cumm...rs-336707.html
__________________
Todd
2011 Itasca Ellipse 42QD
112K miles and counting
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09-23-2017, 06:55 PM
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#9
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Senior Member
Join Date: Sep 2010
Posts: 4,505
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Do click on Todd's Cummins issues and repairs to see what I am suggesting you need to know.
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09-23-2017, 07:44 PM
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#10
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Senior Member
Texas Boomers Club Holiday Rambler Owners Club
Join Date: Jun 2002
Location: What? Like right now? ;-)
Posts: 1,302
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Did it - and also got my blackstone report...
Did two LONG trips (6400 miles total with an mpg of about 9.0 and ZERO oil use -).. Now If I get my inverter issues sorted out ill be golden.
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2003 Scepter 40PDBB - Roadmaster RR8S - Cummins ISC350 - purch aug16
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09-23-2017, 08:38 PM
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#11
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Senior Member
Join Date: Aug 2010
Posts: 2,772
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Quote:
Originally Posted by tom chelbana
Cat engines other then C7 can also have cavitation issues too. With a diesel engine your coolant is more important then in gas engines because of the wet liners. The first thing is you need to know what coolant you have in your engine and then at least once a year check your coolant to make sure this cavitation concern isn't a problem on your engine. There are owners with 5 year old engines with less then 50K of have major damage done to their diesel engines.
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Ok, so with my C7 I don't have to obsess over this issue. I can find enough others, like HEUI pump.
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Terry & Alice
2006 Bounder 38L DP
2012 GMC Terrain
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04-22-2018, 12:14 AM
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#12
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Junior Member
Ford Super Duty Owner
Join Date: Jul 2017
Location: TX
Posts: 14
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Finely got test strips, tested and found NO DCA. No way to find any information on it. 4 years ago it had a new Rad. tank and 2 gallon antifreeze only, started OK and set 4years. I bought from the owner last Oct. It had a rebuild transmission and new radiator installed at a local truck shop. Going to get them to drain a/f out and flush, then I'LL service it the way it should be done. 02 isc8.3 15K miles.
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Jere & Jenalee
93 Winnebago Adventurer DP Gone
02 Monaco Knight Up & loving it. MasterTow Dolley
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04-22-2018, 12:27 AM
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#13
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 15,749
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I had our ISC changed over to the extended coolant last year.
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Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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04-23-2018, 10:55 AM
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#14
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Moderator Emeritus
Monaco Owners Club Texas Boomers Club
Join Date: Nov 2015
Location: Central Texas
Posts: 13,426
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Why wouldn't you just change to an OAT coolant and eliminate the issue entirely?
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Dennis and Katherine
2000 Monaco Dynasty
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