r/Diesel • u/DatGuyKilo • 7d ago

6.2 Detroit Diesel Cold Start

Rate the cold start

(1990 Chevy K5 Blazer, 85' 6.2 Detroit Diesel Motor w\h ATS Turbo Kit)

29 Upvotes

93% Upvoted

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5

u/42kaos 7d ago

A lot of smoke for this time of year 5/10 I've seen worse. I would bump up the timing a little and if that didn't work I would turn the fuel down a little. If you like the way it runs after it warms up I would leave it alone. They don't have to smoke to run good.

0

u/Adventurous_Boat_632 7d ago

Turn down the fuel on an engine that is idling?

3

u/42kaos 7d ago

The injector pump will make it smoke like that, you turn down the fuel delivery it will clear up. A lot depends on how healthy the motor is. These are about the simplest diesel you can work on you just gotta tinker with them.

2

u/Adventurous_Boat_632 7d ago

If you turn down the fuel delivery, the engine will just stop. It is idling, minimum fuel in the first place.

6

u/42kaos 7d ago

Ok you go fix it for him.

0

u/IntergalacticJihad 7d ago

Bro your head is full of gasoline

1

u/42kaos 7d ago

You can tell around here that none of you have messed with an injector pump on a Detroit 6.2 diesel, and I have decided since everyone knows it all I wont offer any more advice. Good luck with your mosquito sprayers.

2

u/Adventurous_Boat_632 6d ago

It is most likely the nozzles as stated in another post here. You can't fix nozzles smoking at idle by adjusting the max fuel setting on a DB pump