Adjusting fuel on 3B

[BreckenridgeCruiser]

Uh... No. Black smoke means too much fuel, which means to much heat, which leads to cracked heads and precups.

Adjust fuel so that when you have your foot into the go pedal at hard as your want to drive, you see little to no black smoke at all.

But even then, you could still get the EGTs into the danger zone on long hills, headwinds, etc. Get an egt guage asap if you don't want to have to buy a new head.

 

[BreckenridgeCruiser]

Just to clarify... Too much air kills gas engines. Too much fuel kills diesels.

 

[mano002]

Just to clarify... Too much air kills gas engines. Too much fuel kills diesels.

I agree with you 100%, I was answering his question.

With my intercooler my EGTs stay low at ~900F, but my 3BT overheats if I push it up hill.

 

[BreckenridgeCruiser]

@mano002 Ah... I see, you were answering the fuel adjustment question and not the black smoke question...

 

[BreckenridgeCruiser]

I just didn't want him to read your affirmation as being about black smoke being safe/okay.

 

[CptCanada]

Oh so diesels are Not like gas engines where as too much fuel doesnt cool the combustion like it does on a gas. Interesting. Ok good to know.
Yes and EGT gauge is top on my list of things to get to be driving the truck.
I also heard that I need to adjust the pump timing when boosting. Can anyone speak to that?

 

[back2cruiser]

Oh so diesels are Not like gas engines where as too much fuel doesnt cool the combustion like it does on a gas. Interesting. Ok good to know.
Yes and EGT gauge is top on my list of things to get to be driving the truck.
I also heard that I need to adjust the pump timing when boosting. Can anyone speak to that?

In my turboed 3b, it ran better at stock settings. The difference between timing settings between the factory na 3b and the 13bt is likely to be due to the different injection type (direct/indirect), and head arrangements, rather than whether the engine has a turbo on it or not.

 

[mginn68]

I have a turbo 3B in a 1980 BJ41. EGT and boost gauges are installed. I’m looking to add more fuel to get my EGT up to 1,000-1,100, so I would turn the screw circled in red counter clockwise correct ?

 

[duncanrm]

I have a turbo 3B in a 1980 BJ41. EGT and boost gauges are installed. I’m looking to add more fuel to get my EGT up to 1,000-1,100, so I would turn the screw circled in red counter clockwise correct ?

Yes..

Wind the screw out (towards the firewall) for more fuel at Wide Open Throttle..
Wind the screw in (towards the radiator) for less fuel at Wide Open Throttle.

 

[mginn68]

Yes..

Wind the screw out (towards the firewall) for more fuel at Wide Open Throttle..
Wind the screw in (towards the radiator) for less fuel at Wide Open Throttle.

Thank you very much!

 

[dirtyham]

or there is Ashtray setting where you pull it out completely and leave it in the Ashtray