Coolant leaks - Oil Cooler

[Dieselfuture]

2 hours ago, NIsaacs said:

As far as pits in the cylinders/blocks, isn't that more electrolysis than anything? 

That's what I used to think too, then I found out that it's from violent detonation of diesel engine that creates tiny little bubbles that form on cylinder walls and when they explode they carve a lil into the metal. A place that's what I found out I'm sure there is more reasons why it happens. Took this picture when I was getting few things at the Cat dealer 

[Mopar1973Man]

Still in all... 360k miles and now losing a gasket. No big deal. I've got to get some time and order a gasket from Rocky Mountain Cummins. 

[Guest 04Mach1]

4 hours ago, NIsaacs said:

 

That sucks, I just checked my stock and out of three brands none are CES 14603. This is good to know, I have never heard of it, and this is from a 20 year log truck owner. Was this around in the 70's and 80's?

 

As far as pits in the cylinders/blocks, isn't that more electrolysis than anything? 

I honestly don't know when Cummins and other manufacturers started pushing maintaining molybdate and nitrites in coolant. My grandfather had a fleet of trucks when I was growing up and I don't remember testing and maintaining coolant but I do remember rebuilding a Cat 1693 due to cavitation of the wet liners. I think molybdate and nitrites probably came about some time in the 90's.

 

1 hour ago, Mopar1973Man said:

Still in all... 360k miles and now losing a gasket. No big deal. I've got to get some time and order a gasket from Rocky Mountain Cummins. 

How do your cylinder walls and inside engine block look? It's never too late to start using the proper coolant.