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Oil from the exsahst system is called wet stacking and is usualy caused by two things. Excessive idle time and over fueling. If you see wet stacking after a highway run you have a serious internal engine problem. The 8V71 was the choice of bus companies and fire depatments for years because they do not need long warm ups (I have started them cold reved to govenor to get air pressure and gone straight to high load high speed operation) and can be shut down any time the engine is at normall running temp without damage. If you must idle these engines make sure it runs 1000 rpm or higher and maintains 180 F at all times. These engines take damage from idling, very large damage if they are wet stacking. The oil you are seeing is actualy mostly fuel. Over fueling washes the oil off the cylinder walls and causes huge wear. I hope you don't mind the lecture. Good Luck |
RV and bus conversion info since 1996.
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