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Unread 12-20-2005, 12:01 PM   #1
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Water Proofing

Anyone have any good links to water proofing steps for my TJ. I hit a pretty deep hole while on the trail and stalled it out. She would'nt start for almost a whole day. Everything is fine now. I want to take some steps to keep this from happening again other than using my head and avoiding suspicious looking water.

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Unread 12-20-2005, 12:06 PM   #2
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1999 TJ Wrangler 
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do a search for water 'proofing' as for the stall that was water in you distributor, dry it out and it will start, i learned to hard way to stay out of deep mud puddles, my last trip in one cost me a clutch, front brakes, new belt, both pinion seals, raditor, and all new fluids, and a tow home (hour and a half trip)
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Unread 12-20-2005, 12:14 PM   #3
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To keep water from getting under the cap, run a bead of silicone under it. Do NOT seal the vent that is on top. Extend it with a breather hose.

The biggest problem with water is that it ruins sensors. It helps to put dielectric (sp?) grease in connections, but it will not prevent problems entirely. I've heard of some people using liquid elec tape to waterproof even more, but I've never done it myself.
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Unread 12-20-2005, 12:20 PM   #4
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From CanukYJ in a post to me many years ago

Water on the coil or distributor will short out the connections and cause the engine to bog, stall, or misfire. Open the distributor cap and try sealing it with soft gasket maker and spray a bit of wd 40 inside to displace any water in there. Get some silicone sealeant (sold as ‘engine electrical sealer’ at most autostores) and spray the hell outta the coil, distributor and plug wires. Those are the prime points of shorting other than the computer (which should be sealed already).
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Unread 12-20-2005, 01:36 PM   #5
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I have waterproofed the tranny (nv3550) and tcase and left the stock diff breathers alone. I have had water/muddy muck to the rockers many times and the Jeep sees 90 miles a day without incident from the trail to the highway. The best thing to do is not hit large or even semi deep pudles at high rates of speed (even though it is fun). It puts water in places it does not belong. Take it slow and steady and all of your intakes and seals will thank you.
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