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Topic Review (Newest First)
04-08-2012 06:29 AM
Comac90
Quote:
Originally Posted by pluke the 2 View Post
they will never suck in.

and if it does suck in, you got major problems.

so no its not bad for your exhaust to be submerged
Actually, if the engine is cut-off or stalls while the pipe is submerged, water can get sucked in ... and often into the engine block in deeper water. If that happens you'll need to winch out (under battery power if the winch is on your rig) or get a snatch out of the water, pull the plugs, and crank the engine over a few times to flush the water - then reinstall plugs and go...

You can generally go pretty deep, though, as long as you're slow and steady, creating a bow wave in front of the rig - that tends to keep water out of the engine compartment. At one point in Moab after an 'epic' rain storm I drove through water over the hood with a mildly lifted TJ. I don't recommend it with - but, only say that to say you can go pretty deep without mods if you have to.

T
04-08-2012 02:05 AM
jyp
Quote:
Originally Posted by pluke the 2 View Post
they come out near the tires fender wells.
Thanks. I'll take a look and try to find them tomorrow. Just so I know how far is too deep for now. I suppose that deep water riders also do something more to seal their battery terminals and fuse box than the plastic cap and stock box as well. But that's not in my immediate future, still got a lot to learn about regular offroading.

I guess I knew about the exhaust not sucking in unless you have a valve problem or something, but I'm glad to hear that the air pressure out is enough to keep water from coming in.

Thanks for the info.
04-07-2012 01:58 PM
pluke the 2 Project-JK.com - Jeep JK Wrangler Resource » Jeep JK Wrangler Axle Breather Hose Extension
04-07-2012 01:55 PM
pluke the 2
Quote:
Originally Posted by jyp View Post
I've been lurking this forum for a while now, and this is my first question: What happens when you submerge your tailpipe in water.

I recently had mine completely under (reversed into water for a tight turnaround, see pic) and got really nervous from the bubbling sound. How far up will the water run? Can it damage my exhaust system from the inside?

Does the answer change depending on the depth/pressure of the water?

I notice snorkels on the air intake of certain jeeps... does a deep water system also need an exhaust snorkel. In fact, is there anything other other than the exhaust that might be a vulnerability point in water? Do the gas outlets for tranny etc... need to be snorkeled? Do they water-seal the electricity?

Thanks in advance for the help
what do exhausts do? they blow out. they will never suck in.

and if it does suck in, you got major problems.

so no its not bad for your exhaust to be submerged.

you have what are called breather hoses. you have 3 of them. one for ea. axle, one for the transmission

they come out near the tires fender wells.

i laugh at people who buy snorkels and they don't remember to extend their breathers and end up screwing up their jeeps.


if you want to play in water, make sure you extend your breather hoses, buy a snorkel, and don't go fast through water forges unless you can afford to breaky uor jeep.
04-07-2012 12:51 PM
jyp
newb question: exhaust pipe in water

I've been lurking this forum for a while now, and this is my first question: What happens when you submerge your tailpipe in water.

I recently had mine completely under (reversed into water for a tight turnaround, see pic) and got really nervous from the bubbling sound. How far up will the water run? Can it damage my exhaust system from the inside?

Does the answer change depending on the depth/pressure of the water?

I notice snorkels on the air intake of certain jeeps... does a deep water system also need an exhaust snorkel. In fact, is there anything other other than the exhaust that might be a vulnerability point in water? Do the gas outlets for tranny etc... need to be snorkeled? Do they water-seal the electricity?

Thanks in advance for the help

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