Hotrod460 Posted April 3, 2017 Share Posted April 3, 2017 I have two R model cabs. Have been working on sealing water leaks for some time now. I recently pulled the cowl vent assembly off the firewall to find the duct not sealed. So I sealed that, re-sealed the vent assembly and re-installed. The roof has all new gaskets. Still there is some water coming through riv nuts or something. That I can address. Are there any "ah hah" locations that other truckers have found water coming in at? Finding water on the floor is getting old and only destroys things over time. Peace Quote Link to comment https://www.bigmacktrucks.com/topic/49381-water-leaks-r-model-cabs/ Share on other sites More sharing options...
Dirtymilkman Posted April 4, 2017 Share Posted April 4, 2017 Visor bolts, roof vent, air horn gaskets, marker light gaskets, windshield weatherstripping 1 Quote Link to comment https://www.bigmacktrucks.com/topic/49381-water-leaks-r-model-cabs/#findComment-366311 Share on other sites More sharing options...
Coenut Posted April 4, 2017 Share Posted April 4, 2017 Wiper pivots. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/49381-water-leaks-r-model-cabs/#findComment-366313 Share on other sites More sharing options...
luke andres Posted April 4, 2017 Share Posted April 4, 2017 remove headliner get 2 cans of flexseal lol 1 Quote Link to comment https://www.bigmacktrucks.com/topic/49381-water-leaks-r-model-cabs/#findComment-366319 Share on other sites More sharing options...
Timmyb Posted April 4, 2017 Share Posted April 4, 2017 (edited) I had rust holes under the lights on the roof. There is also a hole where the wire goes through which might help if it were sealed a bit. Mine had been leaking water for years it seems. My roof lining is stuffed, lots of the cardboard has disintegrated. Edited April 4, 2017 by Timmyb Quote Link to comment https://www.bigmacktrucks.com/topic/49381-water-leaks-r-model-cabs/#findComment-366320 Share on other sites More sharing options...
mackey58 Posted April 7, 2017 Share Posted April 7, 2017 Had new windshields up in the 90 RD690 2 years ago it had the original s and they were pitted had them resales twice and in heavy rains the passenger side still leaks Quote Link to comment https://www.bigmacktrucks.com/topic/49381-water-leaks-r-model-cabs/#findComment-366667 Share on other sites More sharing options...
thomastractorsvc Posted May 1, 2017 Share Posted May 1, 2017 I just had my truck painted and asked the shop to make sure everything on the roof was water tight. Just spent the day loosing everything and adding silicone, have a fan in the truck aimed at the headliner, it leaked through a couple rivnuts and around the vent seal. I took out the vent and silicone the gasket where it pushes in to the roof than did the same where the vent seals in the rubber and added a bead on the roof side took the visor loose and did that to. Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/49381-water-leaks-r-model-cabs/#findComment-368752 Share on other sites More sharing options...
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