Quote:
Originally Posted by Buster13
Thanks for showing me an example and that is definitely the part with the crack in it. I think my mechanic friend got his price from the local napa store. Its definitely worth a try to replace. Question though is if that part is an oil cooler why is there water in it? Is there water and oil? Also if it cracked, I wonder if there is more damage likely somewhere else? Thanks again for the info!
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its an oil to water cooler. the coolant goes through the oil cooler in one part and the oil in another.. typically the oil cooler sees the coolant early on in the cooling cycle.. the coolant cools the oil..
since it hangs out the side of the engine it is one of the first things to freeze when it gets cold.. I cant say about other damage, how cold did it get and how was it just pure water? what prompted there to be no coolant? was there a leak before the bus was parked?
if it was just pure water all this time im guessing you had some brown nasty looking water pouring out of the oil cooler? if there was even a little coolant in the mix it substantially lowers the temperature at which you will see a complete freeze up inside the block that would damage internals..
if this bus is a new acquisition to you, maybe the oil cooler had already cracked before the previous owner parked it?
if in fact the oil cooler froze and broke id be concerned about other near-externals.. radiator, water pump, air compressor head, copper heater tubing..
ultimately if you popped the head off the engine from a completely frozen internal it would run pretty bad when you started it.
what would I do? id probably measure the current freeze temperature of the water, and then knowing how long and how cold it got. if temperatures had been way below that freeze point for anything more than a few hours, id be inclined to swap the engine out to a reman. (or good used). I drive my busses sometimes 1000 miles at a time ..
if I was totally cash strapped id start looking and emailing the folks at vanderhaags, truckpartsinventory. etc to see if a good used oil cooler could be had on the cheap. put the engine back together and drive it.. checking for coolant leaks and signs of coolant in the oil....
-Christopher