What exactly is wet stacking?
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From: Belair md
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From: Newport, WA
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From: Gambrills
how is running it hard washing the rings when there is oil behind it? The carbon crud is not built up in the cylinder...it's built up in the exhaust and the maybe the valve.
I have run the crap out of wet stacked gensets in Kuwait-Iraq to Bosnia-Watertown NY...never had a problem w/any of them in any temps. Unless I let my truck idle for HOURS/DAYS on end I would not even think of wet stacking....IF I thought it may be wet stacked I would run it hard for a bit.
When the gensets are wet stacked the blew BLACK smoke till they were clean. I am going to go out on a limb and say our trucks would do the same.
I have run the crap out of wet stacked gensets in Kuwait-Iraq to Bosnia-Watertown NY...never had a problem w/any of them in any temps. Unless I let my truck idle for HOURS/DAYS on end I would not even think of wet stacking....IF I thought it may be wet stacked I would run it hard for a bit.
When the gensets are wet stacked the blew BLACK smoke till they were clean. I am going to go out on a limb and say our trucks would do the same.
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Joined: Jul 2003
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From: Newport, WA
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From: Ashland City, TN
we refer to it in the military vehicles as well, but a little different, they consider it wetstacking when the trucks idle too long and unburnt fuel begins to build up and wash the rings out. its a problem on some of our vehicles because they are running higher hp numbers and have the fuel "turned up" on them. the fix was to have teh trucks run at a high idle if idling for more then 2 minutes
From what I remember off the top of my noggin, wet stacking is caused by excessive idling with low EGT's. The concern isn't unburned fuel out the tail pipe (who gives 2 craps about that honestly... most of us try to get our trucks to dump black smoke) but rather that if the motor wet stacks enough, it will wash down the cylinder walls (decreasing lubriction of the cylinder) and cause build-up on the piston crown, valves, etc. I also remember reading that thanks to the fancy electronic gizmos bolted all over the hunk of iron under the hood on our trucks, wet stacking is a non-issue.
On edit- c00n replied while I was typing my response.
On edit- c00n replied while I was typing my response.
+1 on the owned for bragging.
I've let my truck idle for a long time, never any smoke.
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Joined: Jun 2007
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From: Austin, TX
my truck on a cold start will smoke white for a long time until i get the temps up. my truck used to be a work truck and i will tell you it was worked hard and long and was idled A LOT. that might be why mine does it, but from my understanding its worse for guys like me or the big guys that are running injectors with 80%, 100%, 200%, 400%, 600%, & 800% over stock nozzles. you let those things idle with out being at a higher idle then i could see it washing the cylinders. i have let mine idle for about 20 minutes in my big tune(forgot it was in extreme) when i was trying to jump my buddys truck. we were working on it letting it charge while we did that. i think i may get tony to burn me a high idle tune now.. haha. the EBPV may also help with this as it should increase EGTs.
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