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Floor pan recommendations?

HFitz

By HFitz,
in BMW 2002 and other '02

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Go to solution Solved by HobieDog,

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HFitz Apprentice

HFitz

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I need to replace my driver's side floor pan and there are a bunch of vendors out there. Does anybody have experience with this who could recommend a quality part that fits well? Sounds like the quality varies quite a bit. 

Since this will be my first major sheet metal job, any tips or encouragement are welcome. Fortunately, my son is a good welder!

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HobieDog Rising Star

HobieDog

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I ordered directly from WallothNesch in Germany and couldn’t have been more pleases. Best price and top quality.  Fast shipping too

 

my only advice would be to pull the carpet and strip out the sound deadening before placing an order…you may uncover more.  
 

Good Luck

 

 

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Mark Hadley Newbie

Mark Hadley

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I just replaced my floor pans this last summer.  Purchased them from Blunttech.  Good heavy gauge, pre primed.  Worked great.

Strip sound deadening per HobieDog for sure. 

Remove the gas line if welding on drivers side.  Grind down welds. Seal with seam sealer. De-grease and prime coat with POR-15.  Top coat with paint or undercoating. 

You will probably need a new gas pedal bracket as well which welds to the new floor.  

 

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popovm Mentor

popovm

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11 hours ago, Mark Hadley said:

I just replaced my floor pans this last summer.  Purchased them from Blunttech.  Good heavy gauge, pre primed.  Worked great.

Strip sound deadening per HobieDog for sure. 

Remove the gas line if welding on drivers side.  Grind down welds. Seal with seam sealer. De-grease and prime coat with POR-15.  Top coat with paint or undercoating. 

You will probably need a new gas pedal bracket as well which welds to the new floor.  

 

 

Did you lap weld or butt weld? Wondering if butt welds need the seam sealer. 

 

And yeah, I keep forgetting about the gas pedal as I am making the list of things I need to buy for my impending driver's side floor pan replacement. My current gas pedal is attached to a piece of sheet metal that's attached with self tappers to the floor pan. Sketchy! I think I am going to go with the fancy IE pedal. 

 

 

BMW-2002-TI-TII-TURBO-ALPINA-BILLET-ALUM

 

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TobyB Grand Master

TobyB

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Remove the gas line if welding on drivers side in the UK.  Passenger's side in the US.

 

I seam seal any weld I haven't pressure tested...

 

t

 

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"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

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Mark Hadley Newbie

Mark Hadley

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We basically lapped pan edges, tack welded every inch or two and seam sealed top and bottom.  

I'm sure everyone will have a different goal for their car.  My goal was to get rid of all rust and corrosion and do a solid structural repair with an acceptable level of aesthetics.  I only replaced sections that had rust, not entire floor pan edge to edge.  I didn't need to structurally.  I cut out rust and cut matching repair panels from the stamped pans.  Welded, seam sealed, POR-15 and 3M undercoating.  Weld seams are visible from the underside of the car and that is OK for me and my car.   I am so happy I did the work knowing I have a structurally sound rust free car.  

Collateral improvements included rebuilt heater, restored gas tank and gas lines, repainted inside trunk, new "Second Skin" sound deadening, new carpet from Esty and rebuilt, reupholstered original seats. 

MH

'74 Inca tii - 22 yr. owner

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popovm Mentor

popovm

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4 hours ago, Mark Hadley said:

We basically lapped pan edges, tack welded every inch or two and seam sealed top and bottom.  

I'm sure everyone will have a different goal for their car.  My goal was to get rid of all rust and corrosion and do a solid structural repair with an acceptable level of aesthetics.  I only replaced sections that had rust, not entire floor pan edge to edge.  I didn't need to structurally.  I cut out rust and cut matching repair panels from the stamped pans.  Welded, seam sealed, POR-15 and 3M undercoating.  Weld seams are visible from the underside of the car and that is OK for me and my car.   I am so happy I did the work knowing I have a structurally sound rust free car.  

Collateral improvements included rebuilt heater, restored gas tank and gas lines, repainted inside trunk, new "Second Skin" sound deadening, new carpet from Esty and rebuilt, reupholstered original seats. 

MH

'74 Inca tii - 22 yr. owner

 

Yours is a pragmatic fix. I like to make things harder on myself. My current plan is to butt weld but I am also a complete welding newb. I might very well try tacking some practice sheet metal together, realize butt welding is hard, and go your route just to stop the rust and get a solid car again. 

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HFitz Apprentice

HFitz

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I'm planning to butt weld using butt weld clamps. They control the joint size and align the two sides pretty well. I think the key is precise scribing and cutting of the new pan and existing floor.

 

Anybody on this thread know where to get the gas pedal bracket? Hoping mine is salvageable and don't want to touch it until I get to the workshop. It's hanging by a thread rignt now...

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