Coolant treatement

37chief · Feb 26, 2017

The post below got me thinking about my JD 401 industrial. When I got it had water in the pan.The previous owner ran it that way until it spun a main bearing. then it sat for months. Long enough to cause a lot of rust damage to the inside of the engine. I found a small pin hole in one of liners. What caused this? I don't want this to happen to me. I use Prestone anti freeze. It was changed last year. Should I be using something different? Stan

David G · Feb 27, 2017

I believe cavitation is caused by tiny explosions on the surface caused by the shock from Diesel combustion, any diesel should run anti cavitation additives. I do not think regular Prestone contains those additives.

David G · Feb 27, 2017

You will see the same thing on pump impellers that are cavitation, will erode the impeller clear away.

rustred · Feb 27, 2017

yes, and have a good rad cap to keep the coolant under pressure is another big factor.

caterpillar guy · Feb 27, 2017

The stuff I get is from Baldwin been using it for 20 years and use it in all the wet sleeve diesels. Comes in half gallons sizes plus probably more if you need it. Only takes about a cup to a Quart per year depending on the size of the cooling system, and the condition of the coolant. Use the test strips first to determine the condition then add according to the results. If it needs qiute a lot then I run on some job and retest.

Matt from Oz · Feb 27, 2017

Hi All

Cavitation is caused by the breakdown of the structure of the fluid which leaves air bubbles. So this is like throwing sand grains through the system which causes trouble. Have seen pitting on irrigation pump impellers where try to pump too much water on start up and destroy the impeller due to damage and corrosion. I just run a complete treatment in my old ford diesels which are notorious for pin holing cylinder liners.

John M · Feb 27, 2017

Solution to it all is Evans.

Geo-TH,In · Feb 27, 2017

Stan,
What would cause a small pin hole? Two years ago my Jubilee started leaking oil from the rear axle. It was a pin hole in rear axle casting that took over 60 years before it started leaking.

Years ago I decided to rebuild a 10 hp kohler. Took block to town to be bored out for over sized piston. A large casting flaw showed up in cylinder.

Twice I've seen casting flaws cause problems.

4520BW · Feb 27, 2017

I use DCA coolant additive from fleetguard.

Texasmark1 · Feb 27, 2017

JD sells a liquid for prevention. That's what I use. I guess it works. "Proof is in the puddin".

OTR trucks with 100,000's of miles have a problem with it and use a special "deionization" spin on filter in a coolant bypass line to protect against it. I had one on my 800 cu in 400 hp in big cam Cummins.

M-MAN · Feb 27, 2017

Your local NAPA dealer will have the additive on the shelf. Use it and change the antifreeze every three to four years.

Ferd · Feb 27, 2017

Napa has test strips (be sure they aren't out of date) that will tell you by color change if additive is needed and how much. Bought a 2520 once that the former owner hadn't kept up the coolant and ruined the Block.

Coolant treatement

37chief

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David G

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David G

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rustred

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caterpillar guy

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Matt from Oz

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John M

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Geo-TH,In

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4520BW

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Texasmark1

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M-MAN

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Ferd

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