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Frozen "coolant" advice #4524661
09/24/17 08:49 AM
09/24/17 08:49 AM
Joined: Dec 2015
Posts: 38
London
alexanderfitu Offline OP
alexanderfitu  Offline OP
Joined: Dec 2015
Posts: 38
London
Hi all

I have a Kubota D722 that was supplied with water in the cooling system rather than coolant!

The engine sat on its delivery pallet for a year and we had cold weather (-6 deg c) for a month or so.

I believe the engine was only half full of water but it still did some damage. It popped one core plug out and cracked the thermostat housing. As its a cast iron engine, I ran it up to temp today to see if I could see any issues. Apart from the leaking thermostat housing, it ran fine. I drained the oil and it has no coolant in it. I had to pull the head off to replace the thermostat housing and found some marks that concern me.

This engine has 0 hours on it and is new apart from some idling. There are these marks on the front and back of the bore:



This mark is slightly above the core plug that popped out:





The engine runs fine and has good compression. Thoughts on what I should do?

Re: Frozen "coolant" advice [Re: alexanderfitu] #4524664
09/24/17 08:54 AM
09/24/17 08:54 AM
Joined: Apr 2008
Posts: 37,959
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,959
Ontario, Canada
Looks like the bores got a bit rusty while it sat, and that's now coming off quicker on the loaded side. I wouldn't worry about it, just run it unless you want to re-hone the cylinders and put new rings in it.


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: Frozen "coolant" advice [Re: OVERKILL] #4524668
09/24/17 09:00 AM
09/24/17 09:00 AM
Joined: Sep 2010
Posts: 7,594
Planet Earth
2015_PSD Offline
2015_PSD  Offline
Joined: Sep 2010
Posts: 7,594
Planet Earth
Originally Posted By: OVERKILL
Looks like the bores got a bit rusty while it sat, and that's now coming off quicker on the loaded side. I wouldn't worry about it, just run it unless you want to re-hone the cylinders and put new rings in it.
Agree; though if it were mine, I would probably do two short OCIs on the oil to dump the extra wear metals that will likely be generated from the rust.

Re: Frozen "coolant" advice [Re: alexanderfitu] #4524675
09/24/17 09:06 AM
09/24/17 09:06 AM
Joined: Aug 2013
Posts: 406
Alberta
tcp71 Offline
tcp71  Offline
Joined: Aug 2013
Posts: 406
Alberta
Is that a crack in the liner in the second picture?


2016 F150 Eco: Edge 0w40
2005 Sienna 3.3: mobil 0w40 (varies)
Re: Frozen "coolant" advice [Re: tcp71] #4524677
09/24/17 09:08 AM
09/24/17 09:08 AM
Joined: Jun 2003
Posts: 17,834
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,834
Deplorable in apple valley, ca
Originally Posted By: tcp71
Is that a crack in the liner in the second picture?
looks like it to me.


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Frozen "coolant" advice [Re: tcp71] #4524680
09/24/17 09:13 AM
09/24/17 09:13 AM
Joined: Apr 2008
Posts: 37,959
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,959
Ontario, Canada
Originally Posted By: tcp71
Is that a crack in the liner in the second picture?


Hard to tell, even zoomed in. It may just be a rust line from where the piston was parked, or it could, as you've noted, be a crack. If it is a crack, the engine is scrap, so hopefully it is just rust. The OP could try rubbing it clean with some oil on a rag.


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: Frozen "coolant" advice [Re: alexanderfitu] #4524687
09/24/17 09:20 AM
09/24/17 09:20 AM
Joined: Dec 2015
Posts: 38
London
alexanderfitu Offline OP
alexanderfitu  Offline OP
Joined: Dec 2015
Posts: 38
London
Thanks for the quick replies!

Yes the second picture is the one I am worried about. That mark is opposite the core plug that popped out. Rubbing it with clean oil does not change its appearance. I cannot feel the mark at all.

This engine is designed to have liners replace, so I suppose I could get somebody to put some new liners into it?

Re: Frozen "coolant" advice [Re: alexanderfitu] #4524688
09/24/17 09:24 AM
09/24/17 09:24 AM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Sounds like a warranty claim with your supplier!


Thick vs Thin test: 15k / 43k miles complete
Re: Frozen "coolant" advice [Re: Kuato] #4524689
09/24/17 09:25 AM
09/24/17 09:25 AM
Joined: Dec 2015
Posts: 38
London
alexanderfitu Offline OP
alexanderfitu  Offline OP
Joined: Dec 2015
Posts: 38
London
Originally Posted By: Kuato
Sounds like a warranty claim with your supplier!


Ugh, engine was supplied 2 years ago and they have long since gone bust!

Re: Frozen "coolant" advice [Re: alexanderfitu] #4524701
09/24/17 09:35 AM
09/24/17 09:35 AM
Joined: Apr 2008
Posts: 37,959
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,959
Ontario, Canada
Originally Posted By: alexanderfitu
Thanks for the quick replies!

Yes the second picture is the one I am worried about. That mark is opposite the core plug that popped out. Rubbing it with clean oil does not change its appearance. I cannot feel the mark at all.

This engine is designed to have liners replace, so I suppose I could get somebody to put some new liners into it?


What if you hit it with a piece of scotchbrite?


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: Frozen "coolant" advice [Re: OVERKILL] #4524712
09/24/17 09:44 AM
09/24/17 09:44 AM
Joined: Dec 2015
Posts: 38
London
alexanderfitu Offline OP
alexanderfitu  Offline OP
Joined: Dec 2015
Posts: 38
London
Originally Posted By: OVERKILL
Originally Posted By: alexanderfitu
Thanks for the quick replies!

Yes the second picture is the one I am worried about. That mark is opposite the core plug that popped out. Rubbing it with clean oil does not change its appearance. I cannot feel the mark at all.

This engine is designed to have liners replace, so I suppose I could get somebody to put some new liners into it?


What if you hit it with a piece of scotchbrite?


No change, unfortunately.

Re: Frozen "coolant" advice [Re: alexanderfitu] #4524719
09/24/17 09:53 AM
09/24/17 09:53 AM
Joined: Apr 2008
Posts: 37,959
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,959
Ontario, Canada
That's concerning, because generally if it is rust, you'll be able to change its appearance. A crack on the other hand.... you won't.


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: Frozen "coolant" advice [Re: OVERKILL] #4524722
09/24/17 09:53 AM
09/24/17 09:53 AM
Joined: Dec 2015
Posts: 38
London
alexanderfitu Offline OP
alexanderfitu  Offline OP
Joined: Dec 2015
Posts: 38
London
Originally Posted By: OVERKILL
That's concerning, because generally if it is rust, you'll be able to change its appearance. A crack on the other hand.... you won't.


ahh, I see!

I think this is a crack. Its location opposite the core plug is not coincidental I believe.

Re: Frozen "coolant" advice [Re: alexanderfitu] #4524723
09/24/17 09:54 AM
09/24/17 09:54 AM
Joined: Jan 2013
Posts: 2,100
Texas
WyrTwister Offline
WyrTwister  Offline
Joined: Jan 2013
Posts: 2,100
Texas
Would it be definitive if you had it magnafluxed ?

Best wishes , :-)


Wyr
God bless
Re: Frozen "coolant" advice [Re: alexanderfitu] #4524727
09/24/17 09:57 AM
09/24/17 09:57 AM
Joined: Apr 2008
Posts: 37,959
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,959
Ontario, Canada
Originally Posted By: alexanderfitu
Originally Posted By: OVERKILL
That's concerning, because generally if it is rust, you'll be able to change its appearance. A crack on the other hand.... you won't.


ahh, I see!

I think this is a crack. Its location opposite the core plug is not coincidental I believe.


Then you'll likely need to get that liner, but preferably all of them, replaced. As if that one has experienced damage from the freeze event, the odds of the others being out-of-round is higher. I would not expect a huge price difference to do them all but I could be wrong, LOL


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
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