Ford 6610 fuel exhaust

mikewood869

Well-known Member
We have a 1982 or 1983 Ford 6610, we know that it has been dieseling (oil coming out of the stack and going everywhere on the tractor), all of a sudden today, it started to rain, but the liquid wasn't rain, it might have been fuel coming out of the exhaust stack (the liquid clear). I have never have seem this in the years that we have owned the tractor (2 or 3 years). The tractor does use a little antifreeze, but in front of the water pump looks wet so I don't know. Yesterday the tractor was running a little odd but then went back to normal. The tractor had the head gasket done during mid summer. The tractor doesn't really get a work out (runs a woods mower 6 times a year, runs a haybine and baler for 12 hours x2, and runs a wood chipper but that doesn't bog it down), the tractor also has a loader on it too. If this is normal, I wouldn't care.
 
you need to find out what the liquid is. fuel is way different than water.

if water gets in the exhaust, that and soot can blow out, it could be excess slobber from a lack of workout among other things.

Is it getting water emulsion in the oil?

Is it getting oil in the radiator
Post back.
 
"The tractor doesn't really get a work out".

There's my clue - sounds like it's "wet stacking". Take it out and work the snot out of it and report back.
 
(quoted from post at 07:34:09 02/12/19) you need to find out what the liquid is. fuel is way different than water.

if water gets in the exhaust, that and soot can blow out, it could be excess slobber from a lack of workout among other things.

Is it getting water emulsion in the oil?

Is it getting oil in the radiator
Post back.

Pulling out the dipstick, the oil looks good and doesn't smell like antifreeze, I ended up adding a half or fourth of a quart either Sunday (02-10-2019) or Monday (02-11-2019). The radiator was drained last September (2018) and seemed dark like oil (the radiator cap had grease or soft oil on the under side of the cap), yesterday the antifreeze looked dark but not when we drained it the first time, but I would have to look again. I ended up having to move the tractor out of the way and when I started the tractor up the second time, I didn't see anything come out of the stack (probably expect oil when dieseling). The first time today when I start the tractor, the tractor ran for 30 seconds and the second was 20 minutes (I stayed near the tractor to see if anything odd out of the normal was going to happen for 2 minutes). When I start the up tractor (cold start with block heater), I have the tractor in idle for around 5 minutes then increase between 900 - 1000 rpm. The tractor usually idles around 400 rpm.
 
(quoted from post at 08:21:01 02/12/19) "The tractor doesn't really get a work out".

There's my clue - sounds like it's "wet stacking". Take it out and work the snot out of it and report back.

Whats the difference between Dieseling and wet stacking, are they the same or close?

The rpm on the tractor only gets increased when driving (1200 rpm), when chipping (13-1400 rpm) and when haying or woods mowing (2000-2200 rpm) and the tractor doesn't usually bog down.
 

Mike, are you talking about a gas tractor that has oil coming out of the stack and going everywhere on the tractor, and you are calling that dieseling? To most of us dieseling is a gas engine continuing to run after the ignition is switched off.
 
(quoted from post at 16:34:44 02/12/19) I’m talking about the diesel engine. Maybe I’m mixing up the terms?

OK, if you are describing what a diesel is doing that is referred to as wet stacking, as Bern referred to.
 
(quoted from post at 15:47:52 02/12/19)
(quoted from post at 16:34:44 02/12/19) I’m talking about the diesel engine. Maybe I’m mixing up the terms?

OK, if you are describing what a diesel is doing that is referred to as wet stacking, as Bern referred to.
Even if the tractor coughs up oil or fuel?
 
I’m hoping it’s just fuel, I’ve never seen the antifreeze that clean before, but I’ll be looking in the morning. Sometimes when starting the tractor the underside of the flapper is wet till I run the tractor enough.
 
Believe it or not, diesels don't "diesel". The term "dieseling" is reserved for gas engines that continue
to run when the key is turned off, self-igniting on glowing carbon in the combustion chambers. It's called
"dieseling" because it does not rely on a spark to ignite the mixture, just as with true diesel engines.
This was a bigger problem on older engines with carburetors.

"Wet stacking" refers to unburned fuel making its way through the exhaust and picking up carbon on the
way, depositing itself as a black gooey mess over the exhaust manifold and surrounding areas. Best way to
avoid this is to not let it idle a lot, and make sure the thermostat is hot and functioning. Also, as I
said earlier, work the snot out of your engine from time to time.
 
(quoted from post at 17:50:40 02/12/19) Believe it or not, diesels don't "diesel". The term "dieseling" is reserved for gas engines that continue
to run when the key is turned off, self-igniting on glowing carbon in the combustion chambers. It's called
"dieseling" because it does not rely on a spark to ignite the mixture, just as with true diesel engines.
This was a bigger problem on older engines with carburetors.

"Wet stacking" refers to unburned fuel making its way through the exhaust and picking up carbon on the
way, depositing itself as a black gooey mess over the exhaust manifold and surrounding areas. Best way to
avoid this is to not let it idle a lot, and make sure the thermostat is hot and functioning. Also, as I
said earlier, work the snot out of your engine from time to time.
Might also be time to call the chimney guy in then. The inside of the pipe has a lot of crap in it. Still wondering how the crap or whatever got on the side of the exhaust manifold (not the strait pipe)and then the right side of the motor mostly (also the valves cover breather tube). I’ll grab some pictures tomorrow.
 
(quoted from post at 22:29:12 02/12/19)
(quoted from post at 17:50:40 02/12/19) Believe it or not, diesels don't "diesel". The term "dieseling" is reserved for gas engines that continue
to run when the key is turned off, self-igniting on glowing carbon in the combustion chambers. It's called
"dieseling" because it does not rely on a spark to ignite the mixture, just as with true diesel engines.
This was a bigger problem on older engines with carburetors.

"Wet stacking" refers to unburned fuel making its way through the exhaust and picking up carbon on the
way, depositing itself as a black gooey mess over the exhaust manifold and surrounding areas. Best way to
avoid this is to not let it idle a lot, and make sure the thermostat is hot and functioning. Also, as I
said earlier, work the snot out of your engine from time to time.
Might also be time to call the chimney guy in then. The inside of the pipe has a lot of crap in it. Still wondering how the crap or whatever got on the side of the exhaust manifold (not the strait pipe)and then the right side of the motor mostly (also the valves cover breather tube). I’ll grab some pictures tomorrow.

Mike, it doesn't take much of a leak in your pipe for the oil to slowly drip out and make a mess, because the breeze from the fan spreads it out. You don't need to call a chimney guy, just follow the advice that you asked for.
 
(quoted from post at 01:38:05 02/13/19)
(quoted from post at 22:29:12 02/12/19)
(quoted from post at 17:50:40 02/12/19) Believe it or not, diesels don't "diesel". The term "dieseling" is reserved for gas engines that continue
to run when the key is turned off, self-igniting on glowing carbon in the combustion chambers. It's called
"dieseling" because it does not rely on a spark to ignite the mixture, just as with true diesel engines.
This was a bigger problem on older engines with carburetors.

"Wet stacking" refers to unburned fuel making its way through the exhaust and picking up carbon on the
way, depositing itself as a black gooey mess over the exhaust manifold and surrounding areas. Best way to
avoid this is to not let it idle a lot, and make sure the thermostat is hot and functioning. Also, as I
said earlier, work the snot out of your engine from time to time.
Might also be time to call the chimney guy in then. The inside of the pipe has a lot of crap in it. Still wondering how the crap or whatever got on the side of the exhaust manifold (not the strait pipe)and then the right side of the motor mostly (also the valves cover breather tube). I’ll grab some pictures tomorrow.

Mike, it doesn't take much of a leak in your pipe for the oil to slowly drip out and make a mess, because the breeze from the fan spreads it out. You don't need to call a chimney guy, just follow the advice that you asked for.

Sorry, I was joking about the "chimney guy", because of all the carbon in the pipe (when we took the exhaust pipe off, the tractor needed a head gasket), there was a thick coating of carbon all the way up the pipe.
 
Very normal for engines that don't work hard. The first time I ever dynoed an engine at night, there were sparks and embers flying out of the stack at full load. Freaked me out until I figured out what was going on.
 
Wet stacking is sometimes also called slobbering...

after rain or humidity is high, it can "slobber" a lot when first started till it burns off the moisture. BUt hopefully you have either a 90 degree bend on the top of the muffler or a rain cap. Also leaky exhaust valve guides can dip oil into the combustion chamber when it sits up a while and that will also "slobber" as it is expelled and burnt off. Then add the unburnt diesel fuel from a very cold start sequence and you have yourself a nice gooey mess ....................till it finally is hot enough, long enough to burn it off. Idling will not burn it clean usually as the engine does not come up hot enough.

When feed round bales in the winter, the poor tractor only runs for 10 minutes or less, at low rpm, so it will slobber a bit. Also due the long crank/glow cycle, the battery need a mbattery maintainer on it when parked. Summer, it only gets run to shred, plow, or hay cutting so it stays very clean, battery is fullly charged.
 
Wet stacking should not cause the tractor to run any different.

The 6610 does not have any glow plugs, but might have a thermostart

Does yours have the inline pump, if so make sure and change the oil regularly in that.
 

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