Mud in the carb
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Post Fiend
Joined: Jul 2003
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From: Spokane, WA
Mud in the carb
Went to the ORV park today and buried my truck in mud. Twice I managed to suck a good amount of water into my carb and almost stalled the engine. So tonight I cleaned the truck and pulled my air filter. Inside of my carb is filthy, time to pull it off and clean it up. Short of adding a snorkel does anyone know of a good way to keep water from getting into the intake?
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From: Houston, Texas
I am planning on running a setup from the intake through the firewall and inder the cowel of my jeep. It looks like (from the pic of your truck) that you might be able to do the same. I was going to use a 4" diameter K&N inline. How are you getting mud inside the intake?? Did you completely bury then engine as well? Or was it just slung up there?
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Joined: Dec 2003
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Here's just an idea: Make some sort of basin in the airbox, as the heavier water will stay towards the bottom and not go into the intake(somewhat). This is done on ATV's alot, and it appears to work well. As for the mud, if it's alot, try a nylon stocking over the filter or somehwere in the intake to sollect some of it(just make sure you aren't seen buying one of those!)
Good Luck.
Good Luck.
Elder User
Joined: Jan 2003
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ivan, I've run into the same trouble with my bronco. I've tried most everything i could think of short of a snorkle. Since I don't want everyone knowing my bronco can swim with a snorkle hung on the side. I'm going to do about like Jeremy stated, But I'm going to plumb mine up into the glovebox with a K&N type filter eliment inside the glovebox. It'll allow more motor noise inside the cab, but that don't so much bother me as mud clogging the carb/filter. If your truck has to pass a look see ems. test builb it where it's easily unhooked under the hood so you can drop your stock eliment back on.
Postmaster
Joined: Jul 2003
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From: Pittsburgh
But doing that would create somewhat of a negative pressure within the cab encouraging water into the cab. If you don't want your feet wet or your motor drinking, a snorkel is the only way to go. (this only applies if your floor boards are still in one piece 
).
If you have holes then the breather on the dash or in the glovebox would work great.
Could just run a pipe from the intake as high as it'll go under the hood, that way so long as your hood isn't covered, your motor is breathing.
Have you extended your axle/tranny breathers yet? If not that should be up there on your list too. I have mine all run together under the truck and then come up the shifter for my T-18. So long as my hand isn't wet, they're breathing.
Justin
).If you have holes then the breather on the dash or in the glovebox would work great.
Could just run a pipe from the intake as high as it'll go under the hood, that way so long as your hood isn't covered, your motor is breathing.
Have you extended your axle/tranny breathers yet? If not that should be up there on your list too. I have mine all run together under the truck and then come up the shifter for my T-18. So long as my hand isn't wet, they're breathing.
Justin
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Post Fiend
Joined: Jul 2003
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From: Spokane, WA
I drove through some fairly deep stuff, about halfway up my grill and leaking through the doors, but I think most if it is splashing up. I had thought about cutting a hole and running my intake via the cowel but I had a lot of water rushing into the cowl as well.
Now I'm wondering if I could just build a cover for my cleaner, to replace the top cover but something that had maybe 3" sides as well. If the diameter was about 2" bigger than my filter it would keep the filter from getting splashed from the sides, like water and mud coming in through the grill. Otherwise Tx had a good idea for running my intake through the cab to avoid drowning.
Now I'm wondering if I could just build a cover for my cleaner, to replace the top cover but something that had maybe 3" sides as well. If the diameter was about 2" bigger than my filter it would keep the filter from getting splashed from the sides, like water and mud coming in through the grill. Otherwise Tx had a good idea for running my intake through the cab to avoid drowning.
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Lead Driver
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From: Senoia, GA
i got a round piece of foam that was made to go around the air filter and it keeps mud out...not water. I think K&N sells them, but they work really well!
-jason-
-jason-
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Post Fiend
Joined: Jul 2003
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From: Spokane, WA
I've seen those foam filters Jason, I'll pick up one and give it a try. Water sucks because I don't want to be choking out in the middle of a swamp but I REALLY don't like all the mud and dirt getting in the carb. A foam pre-filter would probably fix it.
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[/QUOTE]Have you extended your axle/tranny breathers yet? If not that should be up there on your list too. I have mine all run together under the truck and then come up the shifter for my T-18. So long as my hand isn't wet, they're breathing.
[QUOTE]
Does this make it smell like hot gear oil in your cab???
[QUOTE]
Does this make it smell like hot gear oil in your cab???
Senior User
Joined: Mar 2002
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From: Rancho Cordova, CA USA
I think your best defence is to loose the mechanical fan for an electric. This is what throws most the mud/water around under the hood. If it's all electrical, you could switch it off when hitting the holes. This setup would also free up some HP wich is somethng you can use in the mud anyway.
The K&N foam filters are not designed to keep out mud.
The K&N foam filters are not designed to keep out mud.
Post Fiend
Joined: Sep 2000
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From: Oregon
Yea, I thought of you Dan (djoffroad) when I read this thread due to our experience 
There are several things you can do, a snorkle being the most obvious. A good filter with a foam pre filter does help a good deal. The thick foam wraps, not the thin little "socks". Like Dan mentioned, having an electric fan to shut off when you hit the depths helps a huge bunch, because fans send a huge amount of gunk flying around at velocity.
I've had a couple of people ask me why I don't run a snorkle, since I seem to have done everything else to my rig. The truth is, I have zero need of one. Why? K&N filter with thick foam prewrap, radiator and fan removed from engine compartment, and my grill opening is sealed by sheetmetal. Plus, my intake is soon to be sealed to my cowl hood. I've never had any mud ingestion problems with this setup. Sitting so high up doesn't hurt either, if I'm to the point that I'm sucking in water its because I've drowned and am sitting at the bottem of a lake.
There are several things you can do, a snorkle being the most obvious. A good filter with a foam pre filter does help a good deal. The thick foam wraps, not the thin little "socks". Like Dan mentioned, having an electric fan to shut off when you hit the depths helps a huge bunch, because fans send a huge amount of gunk flying around at velocity.
I've had a couple of people ask me why I don't run a snorkle, since I seem to have done everything else to my rig. The truth is, I have zero need of one. Why? K&N filter with thick foam prewrap, radiator and fan removed from engine compartment, and my grill opening is sealed by sheetmetal. Plus, my intake is soon to be sealed to my cowl hood. I've never had any mud ingestion problems with this setup. Sitting so high up doesn't hurt either, if I'm to the point that I'm sucking in water its because I've drowned and am sitting at the bottem of a lake.
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Post Fiend
Joined: Jul 2003
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From: Spokane, WA
I'd planned to go to an electric fan eventually but haven't got around to it yet. Didn't even occur to me but I'll be that's 90% of my problem. Something got tossed around in there and shredded my fan shroud to bits and pieces, I'm just lucky I didn't send a fan blade through my radiator! 
I checked my axles and all looks good in terms of no water. Didn't even think about my tranny but the vent sits up close to hood level. My carb is as high as I can have it (breather actually rubs the hood) so I'm just going to see about a prewrap and electric fan, then hit the mud again.
Thanks for all the suggestions guys!
I checked my axles and all looks good in terms of no water. Didn't even think about my tranny but the vent sits up close to hood level. My carb is as high as I can have it (breather actually rubs the hood) so I'm just going to see about a prewrap and electric fan, then hit the mud again.
Thanks for all the suggestions guys!
Senior User
Joined: Mar 2002
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From: Rancho Cordova, CA USA
Originally Posted by proeliator
Sitting so high up doesn't hurt either, if I'm to the point that I'm sucking in water its because I've drowned and am sitting at the bottem of a lake.
