Moisture Under Floormats in M35A3

[glcaines]

Has anyone had any luck eliminating moisture build-up under the front floormats in the M35A3? Any water that leaks in seems to go under the floormats and collect there as well as moisture condensing from the air. The rubber floormats don't let it 'breathe' and dry out.

 

[emmado22]

I'd take them out.

 

[shovelheadmike]

Not yet, but I'm planning on removing the seats and floor mat to see what is.going on under there. I suspect it is getting in the auto trans fill flap as well.

 

[wreckerman893]

That is why (for the most part) older military vehicles did not have permanently installed floor mats.

Water was constantly introduced into the cab and if there was something in there to catch and hold it rust would result in short order.

Some units would put removable mats in vehicles that were used a lot in garrison such as the First Sergeants CUCV or the Supply Room M1028. They could be removed and cleaned/dried to keep rust away.

When tactical vehicles returned from the field (military exercises) they usually got a good hosing down with high pressure water lines. Water was blown into every nook and cranny.

I have some floor mats that I put in the deuce occasionally but they never stay in.

 

[runk]

leaks

In the continuing battle to keep some of the heat out of the deuce (a2) for summer use, I've been sealing up the holes and adding insulation. Still need to replace the windshield and door seals, but have done the hardtop seals, which dramatically reduced the amount of water coming into the cab in the rain (both moving and sitting). The doors and windshield still leak a lot while moving, but most of the sitting still leaks seemed to be under the dash. After sitting out in a heavy rain, lots of water on the passenger side floor, none on the driver's. After some experimentation with a hose, I sealed up the seams shown in the pictures a couple of months ago. This morning was the first time I've had water on the floor since (and we've had lots of rain), and at least it was a lot less.

I used silicone window caulk, which I will regret if I ever get to painting the truck...

 

[Armada]

I used silicone window caulk, which I will regret if I ever get to painting the truck...

Use automotive seam sealer. It stays somewhat flexible after it dries and can be painted. New car bodies have all their seams filled with it before they get painted and body shops use it when replacing panels.
CUCVs are prone to leaking in the cab too, and it's always a good idea to remove the old dried seam seal where the floorpan meets the kick panels and door jambs and apply new to keep the moisture out of the cracks.

 

[bratpackdad]

I had the same problem with my A2. I took out the mats and painted the floor with
Line-X. Works great.

 

[Billy Bobbed]

I cant say I have that problem I dont have floor mates.Cant say I have had water on the floor from rain.

 

[USAFSS-ColdWarrior]

Rubber Floormats in a DEUCE - - - UNSPEAKABLE ! ! !

 

[shovelheadmike]

If I.could figure out how to adjust the side windows height another 3/4 - 1" higher, there would be a.bit.less...

 

[shovelheadmike]

Added a.fiberglsss hard top and the windows don't go up far enough now.

 

[runk]

Adjustment procedure is in the TM, now that I actually have seals in the hardtop joints, I need to adjust the door windows to fit, but I'm waiting until I get the new weatherstrips installed.

 

[Flyingvan911]

I agree on several counts. Use some type of bedliner on the floor and rubber floor mats are a very extravagent luxury for a deuce. I plan to put Herculiner on the floor of my A2 and on the outside steps.

 

[shovelheadmike]

Adjustment procedure is in the TM, now that I actually have seals in the hardtop joints, I need to adjust the door windows to fit, but I'm waiting until I get the new weatherstrips installed.

I think that I may have the. Correct.TM. Could you perhaps quote me chapter and verse so I can look it up?