Go anywhere Mog.

[b101uk]

It’s a 416 with an om352 engine, the mog originally would have probably come from Europe as the American Case MB4/94 is a 406 underneath as is the Case SEE, as such the injection timing will be set up for DERV (EN590) in the EU which has a higher Cetane number (CN) than that of the USA (ASTM D975) which is similar to gas-oil (red diesel) over hear (excepting city gas-oil/ULSG which is to BS EN590), as such the injection timing really should advanced a couple of degrees to account for the longer ignition delay from a lower CN fuel thus allowing cleaner combustion, the other reason is om352 engines tend to run quite cool unless worked hard which combined with the above leaves residue in the exhaust system which is only burn off when worked hard which generally doesn’t happen when trundling about off-road.

 

This is why over hear mogs running on ordinary red diesel smoke more and have slightly less power than they do when run on DERV or city gas-oil/ULSG

 

White smoke = fuel injected at the wrong time which remains partly unburnt and vaporised which can condense in a cool exhaust and also stings your eyes and takes a bit of time to burn off under load.

 

Black smoke = fuel injected at the right time but with under/over fuelling for the volume of air causing soot instead of vapour. (hence why blocked/restricted air filters and/or fuel filters or leaking inlet pipes on the pressure side of a turbo cause black smoke)

 

With turbo when they are spooling up you expect a burst of black/grey/tan smoke as the volume of forced air changes vs. fuelling, also at some temperatures spooling turbo vs. injection timing and fuelling level cause the exhaust smoke to have a blue tinge to it much like when burning oil though no oil is being burnt.

 

And lastly the compression used by youtube or prior to uploading can make smoke look thicker than it is or a slightly different colour than it was due to how compression algorithms work and the colour background

[arbclimber]

B101uk, thanks very much mate. Very comprehensive answer. Never will I be confused about smoke again:thumbup1:

[tommer9]

Christ b101uk, that was amazing. Thanks!!

[defenderjack]

It’s a 416 with an om352 engine, the mog originally would have probably come from Europe as the American Case MB4/94 is a 406 underneath as is the Case SEE, as such the injection timing will be set up for DERV (EN590) in the EU which has a higher Cetane number (CN) than that of the USA (ASTM D975) which is similar to gas-oil (red diesel) over hear (excepting city gas-oil/ULSG which is to BS EN590), as such the injection timing really should advanced a couple of degrees to account for the longer ignition delay from a lower CN fuel thus allowing cleaner combustion, the other reason is om352 engines tend to run quite cool unless worked hard which combined with the above leaves residue in the exhaust system which is only burn off when worked hard which generally doesn’t happen when trundling about off-road.

 

This is why over hear mogs running on ordinary red diesel smoke more and have slightly less power than they do when run on DERV or city gas-oil/ULSG

 

White smoke = fuel injected at the wrong time which remains partly unburnt and vaporised which can condense in a cool exhaust and also stings your eyes and takes a bit of time to burn off under load.

 

Black smoke = fuel injected at the right time but with under/over fuelling for the volume of air causing soot instead of vapour. (hence why blocked/restricted air filters and/or fuel filters or leaking inlet pipes on the pressure side of a turbo cause black smoke)

 

With turbo when they are spooling up you expect a burst of black/grey/tan smoke as the volume of forced air changes vs. fuelling, also at some temperatures spooling turbo vs. injection timing and fuelling level cause the exhaust smoke to have a blue tinge to it much like when burning oil though no oil is being burnt.

 

And lastly the compression used by youtube or prior to uploading can make smoke look thicker than it is or a slightly different colour than it was due to how compression algorithms work and the colour background

 

blimey !! i thought i new what black and white smoke meant till i read that ! nice one ! someones done there homework

[slack ma girdle]

I got lost in the first sentance..............