There are several causes for excessive blue exhaust smoke. These probable causes are:
Defective Turbocharger
Worn or Damaged Valve or Cylinder Kit
14.10.1 Troubleshooting Procedure for a Defective Turbocharger
To determine if a defective turbocharger is causing excessive blue exhaust smoke, perform the
following:
1. Remove the charge air cooler inlet duct connected between the turbocharger and charge
air cooler.
2. Visually inspect the charge air cooler inlet duct.
[a] If excessive engine lube oil is present, refer to section 14.10.2.
[b] If minimal engine lube oil is present, check for worn or damaged valves or cylinder
kit; refer to section 14.10.3.
14.10.2 Turbocharger Replacement
Perform the following steps to replace a defective turbocharger:
1. Remove the defective turbocharger from the engine; refer to section 7.4.2.
2. Tag the removed turbocharger for remanufacture.
3. Install a replacement turbocharger to the engine; refer to section 7.4.3.
4. Verify replacement of the new turbocharger; refer to section 14.10.2.1.
14.10.2.1 Test Engine with Replaced Turbocharger
Perform the following steps to determine if a replaced turbocharger has resolved the excessive
blue exhaust smoke condition:
All information subject to change without notice.
6SE414 0303
Copyright © 2003 DETROIT DIESEL CORPORATION
From Bulletin 7-MBE900-03
14-115
The engine blow by is exhaust gasses trough out the breather pipe
Engine is severely worn.
on top of the valve cover
Yes, you get carbon monoxide poisoning from a diesel exhaust leak from the engine.
inboard gas engine exhaust
Presumably, exhaust from a gasoline or CNG engine.
You have busted piston rings.
You can drive a diesel engine, or any other type, blowing any colour smoke you wish. Though it is pretty foolish to smoke
If your diesel engine is running on (presumably you switch it off and it carries on running) Then either the fuel stop solenoid on the pump is not working and you have to "stall" the engine to stop it. Alternatively somehow the engine oil is getting in to the inlet manifold and is being burnt in the engine in place of the fuel. This can sometimes happen when the engine is badly worn or the engine "breather" is malfunctioning. the latter will usually be accompanied by black smoke from the exhaust.
in a diesel engine, no power and blowing white smoke, indicates a bad turbo on the engine
The flow of exhaust gasses
If the air intahe and exhaust valves were not actuated what damages expected with the diesel engine? The engine is a four stroke marine diesel engine and because of the rocker arm gears broken the valves remained closed and not actuated.