Water leak making me crazy - have tried everything I can think of and need ideas - JeepForum.com

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post #1 of 47 Old 05-08-2013, 02:26 PM Thread Starter
Colt44
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Water leak making me crazy - have tried everything I can think of and need ideas

My '83 CJ-7 has the dreaded leak that fills the floorboards with water when it rains. Did it when I bought it with a soft top, still does it with the hard top.

I have sealed the windshield gasket with RTV.
I've sealed the windshield frame gasket with RTV.
I've closed off all the screw holes on top of the windshield frame.

I've done all of the above with tape.

The hood vent might be the source, but the hood overlaps the lip of the vent intake box, and the box has a drain tube. I can explore that further, but the water doesn't seem to be coming in through the air passage.

How/where would water get from the intake down into the interior?

Anything else I can try?


"We are all of us in the gutter...
Some of us are looking at the stars."
~ Oscar Wilde via Chrissie Hynde
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post #2 of 47 Old 05-08-2013, 03:14 PM
BESRK
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Check the vent screw holes. On my CJ5, they go right into the cab.. leaking water if the screws don't seal.

'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..


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post #3 of 47 Old 05-08-2013, 03:17 PM Thread Starter
Colt44
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It's supposed to rain Friday/Saturday, so I guess I'll just tape off the whole intake vent and see if it still leaks.

"We are all of us in the gutter...
Some of us are looking at the stars."
~ Oscar Wilde via Chrissie Hynde
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post #4 of 47 Old 05-08-2013, 03:18 PM
Matt1981CJ7
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I always thought the leaking was a built in "feature" to keep my feet cool from the hot floorboards.

Matt
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post #5 of 47 Old 05-08-2013, 03:23 PM
7179CJ5
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Have you ever driven the jeep in rainy weather and not noticed where it the water was coming from?
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post #6 of 47 Old 05-08-2013, 03:25 PM
7179CJ5
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Do you have carpet in your jeep
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post #7 of 47 Old 05-08-2013, 03:43 PM
lucdog
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Sit in thebJeep and have someone spray water on it with a garden hose, use a good flashlight to look around. Thai one of the seats out so you can lay on your back.

1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7
1989 YJ the CJ to YJ.
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post #8 of 47 Old 05-08-2013, 04:10 PM
keith460
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Quote:
Originally Posted by Colt44 View Post
The hood vent might be the source, but the hood overlaps the lip of the vent intake box, and the box has a drain tube. I can explore that further, but the water doesn't seem to be coming in through the air passage.

How/where would water get from the intake down into the interior?
If you don't have a gasket, which are not available anymore, between the cowl vent and upper plenum, it's a sure guarantee that water will get in from there. Use butyl rubber strips to seal the vent to the cowl opening and make sure you include the screw holes that hold the upper plenum to the cowl.

Also, what condition is the sealant in, that is inside the plenum where the two half's are riveted together? May be another source for the leak if the sealant has deteriorated over the years.

You will want to seal your transmission cover plate to the floor with the same stuff.


.
1984 CJ-7 Renegade
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post #9 of 47 Old 05-08-2013, 05:43 PM
gmakra
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Also check your windshield washer squinter, put a cup over the squinter and see if the water stops coming in.
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post #10 of 47 Old 05-08-2013, 06:40 PM
Ivehad4
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Feelin your pain right now. I've been working on mine for a couple months and thought I finally had it nailed, but after 3 days of rain I still have wet socks/pant legs. I sealed the windshield squirter, verified that my air intake grill screws are inboard to the vent box, and have a sore neck and shoulder from the twisting that it requires to do this job. Mine is definitely related to the vent box and doesn't come thru the cowl/windshield seal. My leak comes down the driver side vent (item 13 in Keith's post above). I'll continue searching and post my results if I ever get it sealed up.

1978 CJ7 304/T150
1959 Willys CJ5 F4/T90
1995 XJ 4.0
1998 TJ 4.0
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post #11 of 47 Old 05-08-2013, 06:43 PM
Matt1981CJ7
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Quote:
Originally Posted by Ivehad4 View Post
Feelin your pain right now. I've been working on mine for a couple months and thought I finally had it nailed, but after 3 days of rain I still have wet socks/pant legs. I sealed the windshield squirter, verified that my air intake grill screws are inboard to the vent box, and have a sore neck and shoulder from the twisting that it requires to do this job. Mine is definitely related to the vent box and doesn't come thru the cowl/windshield seal. My leak comes down the driver side vent (item 13 in Keith's post above). I'll continue searching and post my results if I ever get it sealed up.
Please do.

I've restrained from driving mine in any wet weather, since my restore, until I figure it out.

Matt
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post #12 of 47 Old 05-08-2013, 06:55 PM
82JeepCJ7
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Isn't that the reason why Jeeps have drain holes?

Beat it to fit, paint it to match!

Wheel, Wrench, Repeat.
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post #13 of 47 Old 05-08-2013, 07:00 PM
Ivehad4
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Quote:
Originally Posted by 82JeepCJ7 View Post
Isn't that the reason why Jeeps have drain holes?
I guess so and in fact I lost all my plugs years ago. But as my DD it can be embarrassing to explain at work on a rainy morning. Beyond that, its just gnawin at me, cause I know that it didn't leak back in the 80's - so it's fixable.

1978 CJ7 304/T150
1959 Willys CJ5 F4/T90
1995 XJ 4.0
1998 TJ 4.0
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post #14 of 47 Old 05-08-2013, 07:52 PM
texasdave
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I didn't leak in the 80s either but now that it is 2013 I tend to leak every now and then.
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post #15 of 47 Old 05-08-2013, 08:22 PM
WindKnot
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^^^^TMI!!! ^^^^

I'd rather be lost on the trails than found at home!

Phoenix Rising- A Flame Off Restoration? http://www.jeepforum.com/forum/f8/ph...ation-1807257/
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