M923 Smoke

[wadefreedomvehicles]

Is there anyway I can lessen the smoke, or blow by in on my M923? Is there a fuel additive or something out there?

 

[HMMWV Nut]

Is there anyway I can lessen the smoke, or blow by in on my M923? Is there a fuel additive or something out there?

I have added Lucas heavy duty oil stabilizer when i changed oil and added Howes diesel treat additive. There are many good products on the market but i have used these in the past and they have solved the issues you are experiencing.

 

[Ue413]

Is your 923 an 8.3? I've got constant smoking on an 8.3, but I believe good compression as it fires up immediately, but believe it has suffered from sitting and / or ether use.

 

[wadefreedomvehicles]

Yeah, mine I think has blow by/smoking from sitting. I will try replacing the oil, and see if that helps. And yes mine is an 8.3 I am pretty sure.

 

[Suprman]

The nhc250 motors injectors can be adjusted but you need someone old school to do it. I used to have one that fogged mosquitos still it was decently warmed up and it still smoked a bit. Depending on the color of the smoke you could be burning oil also.

 

[wadefreedomvehicles]

I am pretty sure I am not burning oil. And ok. I will keep that in mind. Adjust the injectors.

 

[Ue413]

Can smoke (from diesel) be associated with timing?

 

[JohnnyBM931A2]

Yeah, mine I think has blow by/smoking from sitting. I will try replacing the oil, and see if that helps. And yes mine is an 8.3 I am pretty sure.

Pretty easy to tell if you have an 8.3 instead of a 250.. The 8.3 is smaller, and it has a turbo on the passengers side of the engine

Also, if your truck has the tire inflation system, or 4 shackles on the front bumper, you know it's an A2 with the 8.3 engine.

 

[wadefreedomvehicles]

Ok than I do have the 803 I have four shackles.