Rusty floorpan

[austinandtina]

Hey after bringing my 94 cherokee home I noticed some baseball size holes in just about every floorpan. Now can i just clean it up and lay out some thick undercoating over it to seal it since my welder is on the fritz

 

[ehall]

JB Weld will do the trick if there's no lateral pressure. Just cut out the rust spots and trace patterns onto cardboard, then cut some sheetmetal patches with a 1/4 to 1/2 inch overlap. Drill a sequence of staggered off-set small holes in both surfaces, prime both surfaces, then apply a bead of JB Weld and let it set. Use some automotive seam sealer to smooth out the transition. I did the same thing with some small patches on my floorboard years ago and they are still holding fine.

 

[austinandtina]

Ok cool I thought it was fishy when the carpet was kinda wet lol

 

[Matthew Currie]

I've had pretty good luck with the above technique, but instead of JB Weld, using short self tapping sheet metal screws. Daub the mating surface with something tarry such as roofing cement before laying the plate down, screw it in, and then daub the underside liberally with more goo to seal it as completely as possible. If JB Weld can hold the plate down without screws, all the better, but after it's hardened, I'd still make sure there's a liberal coat of sealer on the underside so that there is no crack for moisture to sneak into.

 

[austinandtina]

Ok thanks

 

[austinandtina]

I had also thought about trying the fiberglass resin bondo then coating it with roof tar

 

[austinandtina]

Ok just was under there hosing some undercoating along the sides and decided to get a better look at those floorpans. There toast every one of them needs cut out peeled apart in this one's case. What are my options can i just cut it out and weld sheet metal underneath somewhere not sure what there is left to weld to but help is needed

 

[ehall]

http://raybuck.com/c-54807-repair-panels-jeep-1984-2001-cherokee-xj.html

https://www.shermanparts.com/ecat/b...ake=Jeep&model=Cherokee+(XJ+Series)&year=1994

 

[austinandtina]

Thanks why is ray buck so much cheaper

 

[ehall]

Dunno

 

[Pchitti]

Rockauto has it a little cheaper, not sure on shipping though.

 

[austinandtina]

Ya well my drivers side front and rear pans are gone I see hardly any metal left just carpet from underneath. Thought maybe some sheet metal might work but idc

 

[austinandtina]

**idk**

 

[Pchitti]

I finally got under my carpet today, drivers side is toast. Entire rocker panel is gone on the passenger side... I see learning how to weld in my immediate future.

 

[austinandtina]

My rocker and floorpan are gone on drivers side of mine bit passenger side is a little better I just coated it I'm bed liner to get me by for a short time.. I might try just taking sheet metal underneath and welding it in and sealing it

 

[ehall]

If you look at some of the builds here there are a lot of people had to replace the front floorpans. I had to replace the cargo deck and part of the floor under the rear seats.

 

[Pchitti]

I would highly suggest not doing the floor pans from the bottom.

 

[austinandtina]

Well after having another jeep buddy look at it I belive we are going to try and fiberglass it. But I'm having issues getting the darn seat out those nuts seem to be 13mm but just can't get them to turn without slipping off

 

[austinandtina]

this is what I'm going to try and accomplish

 

[David_Bricker]

My first thought would be that fiberglass will not provide any structural strength. Since the XJ is a unibody, that sheet metal floor pan does integrate into the strength of the whole vehicle. Further, if the sheetmetal is really gone, I'd be concerned that the fiberglass will flex a lot as you step on the floor, etc. Granted, fiberglass will seal it from water, but I think I'd go with sheetmetal. The replacement pans, using the correct year, tend to be pretty well formed for the appropriate contours of the floor.

David Bricker / SYR