Smoking engine

[69DeuceJuice]

After my truck sits and idles a while 30 minutes or so. It will smoke horribly when I give it throttle to take off and drive away and it’ll continue this white smoke for a few seconds as I shift through each gear then it clears up and doesn’t smoke except the normal black diesel smoke. I have a non turbo Hercules multi fuel, is this normal.

 

[williamh]

Mine will usually blow smoke if it’s sitting at idle for an extended time and mine has a turbo.

 

[69DeuceJuice]

Mine will usually blow smoke if it’s sitting at idle for an extended time and mine has a turbo.

Ok so there’s two that do it if I get like five more I’m gonna say it’s normal

 

[davidb56]

I would think a non turbo would smoke a bit until the cylinders warm up since part of the combustion is from heated air.

 

[HDN]

I've always heard the non-turbo multifuel trucks were particularly smokey throughout the engine's operating range, so I'm guessing it's normal.

 

[SCSG-G4]

The turbos were added to 'clean up' the exhaust. Read the contemporary literature on that subject (1970-1980's).

 

[rustystud]

After my truck sits and idles a while 30 minutes or so. It will smoke horribly when I give it throttle to take off and drive away and it’ll continue this white smoke for a few seconds as I shift through each gear then it clears up and doesn’t smoke except the normal black diesel smoke. I have a non turbo Hercules multi fuel, is this normal.

Like most Diesel engines, it needs to be run, and run hard. This helps to "reseat" the rings on the pistons. If a Diesel is allowed to set for long periods of time the rings loosen up which will cause the engine to burn oil until the rings reseat themselves.
So take your Deuce out for a good long "hard" run and it will be very happy !

 

[G744]

"So take your Deuce out for a good long "hard" run and it will be very happy ! "

AKA an Italian tune-up...

 

[rustystud]

"So take your Deuce out for a good long "hard" run and it will be very happy ! "

AKA an Italian tune-up...

Italian tune-up ! Now that's funny

 

[RedNBlue]

The smoking after idling for 30 minutes is likely from wet stacking. Like @rustystud mentioned, they're meant to be run. Idling for extended periods doesn't get or keep the engine at optimal running temp, which will likely result in wet stacking, particularly in older diesel engines. Wet stacking results in excessive smoke, carbon buildup, and if experienced over a long period of time, can actually result in fouled injectors, diesel thinning the engine oil, and all sorts of other bad things down the road.