engine cool down vs. wet stacking?
Elder User
Joined: Oct 2004
Posts: 602
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Originally Posted by bkrfrmhell
You don't have to worry about wetstacking......idle your truck for hours and you won't have any real problems....I work in the arctic circle on large mining equipment and have only seen wetstacking once.... on a cat 3516.....fast idle program malfunctioned...truck idled at 700rpm for approx 40 hours straight at -50 degrees before there was enough build up on a valve stem to cause it to stick and smack the piston... people that worry about this in their pickup have way too much time on there hands...better to idle too long than not enough
Postmaster
Joined: Nov 2004
Posts: 2,854
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From: New Hampshire
i am no expert, but, i know that if you have just been towing or running down the highway for awhile, the motor is much too hot for any deposits to form on the valves... the exhaust coming out my tailpipe after towing is hot enough to burn your hand quick..! and plenty hot enough to cook a turbo...! run the truck for ten to twenty mins after you stop... and the exhaust is just warm to hot...probably right around 300 degrees though i don't have egt gauge yet... i think the odds of cooking a turbo are much greater than a motor wet stacking... i'll continue to let her cool down..
Junior User
Joined: Feb 2004
Posts: 71
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From: Fremont Mi
I have owned an 1988 7.3, a 1990 7.3 with a banks tubo, a 95psd, and a 97psd. All of those trucks idled for extended periods(1 hr+) of time w/o a problem. I'm no expert, but i haven't had any problems yet. I just hate cold trucks and on the older two the glow plugs weren't the best so i use to leave them run all day while i was in school for fear that they wouldn't restart when cold.
Postmaster
Joined: Dec 2003
Posts: 2,864
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From: STEPHENVILLE,TX!!!!!
a truck will start smoking like crazy, white smoke before the wet stackin will cause catastropic damage. also on the psd's the computer can see the oil temp dropping and fire the GP's back up too. my bucket truck has idled for hours upoin hours to keep the tool hydraulics and the lighting goin. when we had all thoose fires down here couple years back that truck ran for 6 weeks strait. 2 crews running it 24hrs a day.
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