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Body work help
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reluctantartist
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Joined: August 13, 2006
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Location: Bloomington, IN
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PostPosted: Sun Jan 16, 2022 6:17 pm    Post subject: Body work help Reply with quote

I was going over car and found a soft spot in the back seat floor pan that is really this. It is where the front seat belt anchors. What gauge steel is used for the rocker and floor pan? I guess I have to make a patch for the floor pan and a patch for the rocker with a heavy metal piece welded on it for the seat belt anchor?


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The rocker seemed to have rusted from the inside out.


Thanks
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1982 Westy, 1974 412 Variant... Yes, Aircooled's are great! Oh and I do have modern computer controlled vehicles too, but I just don't care about them.
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raygreenwood
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PostPosted: Mon Jan 17, 2022 10:11 am    Post subject: Re: Body work help Reply with quote

Yes....it rusted from the inside out.

Understand that the most destructive area on 411 and 412.....is in the rockers/heater channel area just forward of the rear fender. That area and some of just above it is filled with isocyante foam.

The big water ingress culprit to that foam is actually either water leaking in around window gaskets and the front windshield gasket and flowing rearward. Thats kind o the obvious and minor culprit.

The big one is water leaking in around the outside steel trim holes and dribbling down to the heater channels in the big cavity behind the arm rests in the rear seat. It soaks the foam and stays there rusting out the rockers and sills.

You can pull off the armrests and cardboard panel and look and reach down in there. Of course the heater channel is further below. The fiam is used to plug the rear open end of the heater channel.

One good coarse of action is to remove rear wheel and at the lower edge of the forward side of the rear wheel arch.....take a hole saw....maybe 1.5" diameter. Cut a plug of sheet metal out at the end of the heater channel. Then with rods, hooks and picks you can remove the foam....derust....patch....seal....and then spot weld the disc of metal back in undecoat over it.
Ray
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reluctantartist
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PostPosted: Mon Jan 17, 2022 11:19 am    Post subject: Re: Body work help Reply with quote

i figured it was a foam issue. I still need to know what gauge steel to get. i will need to make a floor pan patch and a rocker patch. Ill salvage the seat belt anchor reinforcement if possible.
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1982 Westy, 1974 412 Variant... Yes, Aircooled's are great! Oh and I do have modern computer controlled vehicles too, but I just don't care about them.
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reluctantartist
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PostPosted: Tue Jan 18, 2022 10:38 am    Post subject: Re: Body work help Reply with quote

Does someone know what gauge steel is used on the rockers and floor pan?
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1982 Westy, 1974 412 Variant... Yes, Aircooled's are great! Oh and I do have modern computer controlled vehicles too, but I just don't care about them.
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Lars S
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PostPosted: Wed Jan 19, 2022 1:02 am    Post subject: Re: Body work help Reply with quote

reluctantartist wrote:
Does someone know what gauge steel is used on the rockers and floor pan?


This is the only info about steel thickness I can find in the factory workshop manual....maybe it can give you a clue...

/Lars S


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