911E resto question

[lwebster19]

Howdy,

In the middle of what I hoped would be a relatively straightforward mechanical restoration on a '69 911E that was in a real barn for the past couple of decades. Sigh. Found a small hole under the pedals. There's this plate under the floor that I hope you can see in the picture. Can someone tell me if this was a previous patch of something that came from the factory???
Thanks!
Larry

[Matt Monson]

That's a poorly done patch of a rusted out pedal box plate.

[lwebster19]

Thanks Matt,

So originally, there was no plate under this area? Or there was a plate and this one is just not done well?

[pors1968]

IT not done properly and this plate belong to the floor you need it to bolt gas pedal

[jrsully]

I actually have to replace a stud on this plate (71 T) mine is originally installed and hasn't been touched since the factory. Question, does it remove easily.? factory welded on.? Looks like it just attached and sprayed over with factory undercoating. Any help removing appreciated

[Daves911L]

That is the original re-enforcing plate under the pedal cluster, providing the mounting studs for the pedal assembly. Yours appears damaged, but I don't think it has been previously patched. Possibly someone tried to pry it loose from the floor pan, or maybe the leading edge of it caught some road hazard. It is originally spot-welded to the floor pan.

It is not unusual to have rust here. Leaked brake fluid lifts the paint/undercoating, and then the remaining brakefluid/water/dirt stew has a feast on the metal. Assuming the rest of your floor is in good, a reasonable repair would involve removing the old re-enforcing plate, replacement of the rusted portion of the pan, and replacement of a new plate/studs. I assume the re-enforcing plate is available from vendors, but if not save the old one and fabricate from appropriately thick steel/M8 studs. Not a particularly big project if you have the right tools (and the rust is truly limited to this area).

Dave
---------------------------------
'88 Carrera Targa (Hygge)
'68 911L Targa (soft window)
'64 C coupe (the Swiss Miss)
'61 B roadster (the Belgian)
'58 A coupe (the Damen)

[jrsully]

How do you remove the reinforcing plate.?

[jrsully]

bump up to see how you get the reinforcing plate off, have the car in the air!

[Daves911L]

If I recall correctly, the plate is spot welded to the pan. Since the plate is thicker metal than the pan, chiseling to break the welds would tend to pull them out of the pan, tearing the metal. You would have to locate the spot welds and drill them out. If everything else is good, and one stud is broken off, it might be more practical to replace the stud with a bolt. You could weld the head to the plate as original, or just accept that in the future r&r ing the pedal cluster would be a two person task.

[jrsully]

Thx Dave, plate stays (there is no rust on this area anyway) will drill out broken stud and throw a new one in. Thx for the info

[lwebster19]

Thanks All.

My plate is damaged because I tried the chisel and hammer to remove. There is so rust on the floorpan at the leading edge of the plate. Think I'm going to have to cut our the floor around the plate and replace it. Sigh...