Coolant in engine oil on a 5603?

[Tx Jim]

Local neighbors employee got the engine hot and now coolant is in the oil. I understand how the problem could be a bad head gasket or cracked head. I'm also aware of oil cooler & lining o-rings. But looking at parts schematic I don't understand if water pump can contribute to coolant in the oil? Could WP be the problem?Thanks,Jim

 

[jd110]

Water pump can't leak into the crankcase on this model. The water pump fits into the timing cover and possibly a porous timing cover could get coolant into oil. Haven't seen that happen, but is possible.

 

[Tx Jim]

I thought from viewing parts schematic WP couldn't be the problem but I thought I'd ask. Thanks for reply,Jim

 

[art]

Oil pressure is far higher then coolant pressure. You have the potential of a head being cracked, block being cracked, cylinder sleeve or head gasket.

 

[Tx Jim]

I just told my neighbor I thought he should pull pan,pressurize cooling system and look for drips. Cyl head has been removed, checked for cranks and new head gasket installed Thanks for replies,Jim