Wet Stacking - Diesel Engine Question

As I break-in the JD5055d, I am very mindful of wet stacking and engine temps. In generator applications, I've seen built-in resistive heater load banks that put around a 30 percent load on the engine when there is no or low electrical load present. As the electrical demand increases, the load banks are shed - freeing the full hp potential of the engine as the increased load prevents wet stacking.

One thing is for sure, if the generator's diesel's engine is not loaded, it will wet stack - but this typically at 1,800 constant rpms.

What about a diesel tractor? There must be a ton of hours that the diesel engine sees little to no load and unlike a generator, no load banks to deal with wet stacking.

Haven't encountered wet stacking with my 5055d as I make it a point to keep the engine loaded to some extent during the break-in AND up to temperature, but my MF 50 will start giving a bit of blue smoke with very strong diesel vapors if it idles for an extended period, like when I'm attaching an implement. Once in gear, implement attached, there no visible sign of wet stacking. It seems that just having the tractor up to temperature and making it move itself around are enough.

But I read about and see some of the larger IH tractors or a JD 4020 that are being used with some lightweight chores, i.e. pulling a wagon, haybine (with sickle vs disc) or a small baler. These tractors look like over kill for the implement attached. Is wet stacking a problem for these larger tractors?

Anyone deal with wet stacking on their small or large hp diesel tractors? If so, how you prevent it?

Just curious.

Thanks!
Bill

Our 1855 will wet stack during the summer if we put it on the haybine, but as soon as we put it on the chopper it clears up again as long as I can work it in first crop. Lighter cuttings don't always work it unless we double it up to have a 28' windrow.

When fall rolls around and we chop corn and plow the fields, wet stacking is far from an issue.

Donovan from Wisconsin

Diesels need to be worked hard to stop wet stacking it is just the nature of the diesel engine run hard and be ok run lightly it will wet stack

On an engine in good shape I have not seen issues with wet stacking.
Seen it plenty on those that need attention though.

depends a lot on how the injection pump is set also.more fuel,more power more wet stacking at light loads.

Check timing. Sometimes late timeing will cause 'wet stack'.As was stated,A diesel that just idles/poops around is more prone to wet stack.Go work it hard,really pull the snot out of it for a few hours,even days.

Aw,

They'll wet stack right off the transport.

Allan

We use a JD 4430 and a CIH 7210 - both in good condition - to pull hayrides at the pumpkin patch and U-cut Christmas tree farm in season. Both wet stack pretty good as they idle around the wagon routes, especially in colder weather.

However load them up plowing, fitting, etc. and the wet stack condition quickly disappears. They'll smoke and shoot sparks and even fire out the stack when first worked hard. But after a few minutes the exhaust clears up and the stacks go clean.