EXHAUST HEAVY BLACK SMOKE

Just because it smokes don't mean it's broke :B

eHoefler wrote:

Executive wrote:

Passin Thru wrote:
There is a small rod sticking down in the intake that measures intake air and they get dirty. Get a can of carb cleaner and clean it but be gentle as it will break. May be that simple.

??? Never heard of this, but I'm eager to learn something new....where exactly is this rod?, and how would one find it....?....thanks...Dennis

Either injection for cold starting, nothing to do with anything else.

Look for a fresh air intake blockage, air filter, intake piping to air filter. Most likely rats/bird nest in the intake to the air filter.

The poster was probably referring to the mass air flow sensor, which many engines use to determine the fuel needed for proper fuel injector activation or other related functions.

As it turns out, the OP's problem was too much fuel from a faulty fuel injector.

Dano,

Make sure that the final fuel filter (if two) or the only fuel filter if only one has a 2 micron filter element.

Filter elements all look and fit the same, and come in 2,5,10 and 30 micron filter elements.

Injector failure on any diesel can be caused by allowing dirt into the injectors.

Not suggesting that this is what happened, but it is certainly one of the possible causes of injector failure on any diesel.

Thank you for getting back to us with the results.

Found out problem on this posting-#4 Fuel Injector went out
causing it to dump raw fuel into my exhaust system.
Luck I guess being on my side it did not catch fire. It
was so hot it cooked most of the internal parts of the
exhaust and the stainless tail pipe end was tarnished.
Had to change out exhaust system completely
plus fuel injector which was done by Catipillar!
Since having it @ repair facility I had all fluids
changed, hoses, fuel filter & Air Filter.
Runs Great now again! My surprise is this Catipillar 330
HP did not give me any signs that I was having a
problem, never lost power- other than me noticing more
than usual black smoke from exhaust ??

Thanks again from all for your input, they were
very helpful !!!
DANO2014

Executive wrote:

Passin Thru wrote:
There is a small rod sticking down in the intake that measures intake air and they get dirty. Get a can of carb cleaner and clean it but be gentle as it will break. May be that simple.

??? Never heard of this, but I'm eager to learn something new....where exactly is this rod?, and how would one find it....?....thanks...Dennis

Either injection for cold starting, nothing to do with anything else.

Look for a fresh air intake blockage, air filter, intake piping to air filter. Most likely rats/bird nest in the intake to the air filter.

Passin Thru wrote:
There is a small rod sticking down in the intake that measures intake air and they get dirty. Get a can of carb cleaner and clean it but be gentle as it will break. May be that simple.

??? Never heard of this, but I'm eager to learn something new....where exactly is this rod?, and how would one find it....?....thanks...Dennis

Worst case scenarios include broken piston rings, leaky valve guides, bad valve guide seals.

Better cases might be some valve (EGR or other) plugging up the smog control system(s) not allowing proper crankcase ventilation.

If you have fuel injection, check for bad injectors, dirty intake system, bad gaskets almost anywhere.

Passin Thru wrote:
There is a small rod sticking down in the intake that measures intake air and they get dirty. Get a can of carb cleaner and clean it but be gentle as it will break. May be that simple.

More information or link please.

There is a small rod sticking down in the intake that measures intake air and they get dirty. Get a can of carb cleaner and clean it but be gentle as it will break. May be that simple.