Hello i have a 92 7.3 IDI. got it free has been setting for a year after owner saw water in crankcase.
This motor has been rebuilt and used very little in 10 years after rebuild. I took off the heads the head gaskets look ok. #2 and #4 cylinders have some rust at the top 1.5 inch's of the cylinders. I did notice some small cracks in head around where the fuel is injected but no rust in cracks. From what i have read here it sounds like water can get into oil from cavatation holes, head gaskets and the oil cooler. I don't think it is head gaskets. Only found a small amount of coolant in oil when drained. Top of#2 piston looks clean (white'ish) could that be sign that water is leaking into this cylinder? Cylinders have no ring ridge and can still see cross hatch pattern. I am wanting to repair this motor and replace my tired 6.9. How can i check my oil cooler for leaks? Take it off and look for water in it? where do the coolers leak from? Any idea's?
Thanks
Don
This motor has been rebuilt and used very little in 10 years after rebuild. I took off the heads the head gaskets look ok. #2 and #4 cylinders have some rust at the top 1.5 inch's of the cylinders. I did notice some small cracks in head around where the fuel is injected but no rust in cracks. From what i have read here it sounds like water can get into oil from cavatation holes, head gaskets and the oil cooler. I don't think it is head gaskets. Only found a small amount of coolant in oil when drained. Top of#2 piston looks clean (white'ish) could that be sign that water is leaking into this cylinder? Cylinders have no ring ridge and can still see cross hatch pattern. I am wanting to repair this motor and replace my tired 6.9. How can i check my oil cooler for leaks? Take it off and look for water in it? where do the coolers leak from? Any idea's?
Thanks
Don
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