Well folks, I have been knocking around here sly of 2 years and it amazes me of the amount of topics about engines that crop up. The colour of the exhaust smoke it a red light issue for everyone. Basically a healthy exhaust is a healthy engine, ie no colour.
I don't want to alarm anyone and anything that I refer to, may be corrected to by experience and knowledge. But I will attempt to clarify for those not mechanical inclined. If this post is successful, maybe the admin, might move it to the knowledge based side for future reference.
No 1,
Cold start, and slow to fire, with lots of white smoke, you have compression issues. The rings of the piston are worn, and when the engine fires, there is blue smoke. This blue smoke is the engine burning its own oil.
No 2.
Black smoke. On reving up the engine, there is black smoke. This because of unburnt fuel. Check the air intake filter, and see if it is clean. If not the erg valve is broken or common rail fuel system is over supplying some of the pistons in your engine with fuel which is not been burnt clean.
No. 3
White smoke all the time. There's a gasket in your engine that it allowing water into the piston at all times.
All of the above is only based on my experiences, I'm not a mechanic just an unlucky so and so who has learnt the hard way.
If buying a diesel engine, always get it started from cold. If it is a warm start, walk away immediately.
Anyone else, anything to add?
Malcolm
I don't want to alarm anyone and anything that I refer to, may be corrected to by experience and knowledge. But I will attempt to clarify for those not mechanical inclined. If this post is successful, maybe the admin, might move it to the knowledge based side for future reference.
No 1,
Cold start, and slow to fire, with lots of white smoke, you have compression issues. The rings of the piston are worn, and when the engine fires, there is blue smoke. This blue smoke is the engine burning its own oil.
No 2.
Black smoke. On reving up the engine, there is black smoke. This because of unburnt fuel. Check the air intake filter, and see if it is clean. If not the erg valve is broken or common rail fuel system is over supplying some of the pistons in your engine with fuel which is not been burnt clean.
No. 3
White smoke all the time. There's a gasket in your engine that it allowing water into the piston at all times.
All of the above is only based on my experiences, I'm not a mechanic just an unlucky so and so who has learnt the hard way.
If buying a diesel engine, always get it started from cold. If it is a warm start, walk away immediately.
Anyone else, anything to add?
Malcolm
