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[quote]QUOTE: Originally posted by rvos1979 Don't forget about the Caterpillar-repowered locomotives, CAT 3512 and 3612 engines use antifreeze too. I wouldn't be too worried about water getting in the oil, as it is usually under fairly low pressure, it's usually the other way around. I'm not to familiar with the crankcase design of the EMD block, though, so the above statement is strictly opinion. Water may wipe out mains and rods, but raw fuel will do it too, and usually much quicker. Randy, did you ever hear of many injector cup leaks (the usual cause of fuel in the oil) in your job? This seemed to happen often in our Series 60 Detroits in the truck shop I used to work at. Another question for Randy: Did you ever work with some sort of auxilliary power unit (i.e., Kim Hotstart)? We installed four in our SD40s on the WSOR, and they seemed to be problematic, either could not keep the cabs warm enough, or cooling water warm enough, we had a lot of radiator problems after installation. These setups are a great way to save fuel, just wish we could get the bugs out of them. Randy Vos WSOR engineer [/quote] You are right. I totally forgot about the little kitty cats running around out there. As for water in the oil, that happens a lot in all diesel engines big or small. The only things keeping the two apart are a few o-rings on most of them. The usual causes are a hole in the cylinder liner which is caused by cavitation erosion or in the case of an EMD there are two water pipes per cylinder that are sources of leaks also.
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