Have a loose ear that showed up after all the cleaning, straightening and painting, dang the luck.
I think the plate shown on the inside of the pan to be a repair and is on both sides of the pan internally . The plates are very nicely made. There isn't any sign of brass on the pan or the ears inside or out.
If you ever tried to remove brass it is a real pain. Why would someone remove all the brass or have I found the missing link. LOL
The last 12 pan I repaired had those plates as well.
Frank. was the ears and rivets brazed, this one has no sign of ever having brass.
All that I have seen had those plates on the inside and were brazed but it would not surprise me if Ford tried without the braze and/or plates.
Yes it was brazed, the owner found out the hard way it was leaking, on the first start up after I rebuilt the engine, out with it again to fix!
Frank and Layden thank you both.
Layden I assume there is signs of brass on the out side of the pan around the ears and rivets or was just the inside brazed?
Both sides were brazed. Like the solder in 2 piece steering gear cases it is the brazing that keeps the ear from working loose and cracking itself and/or the pan.
Is your example a late 7 rivet? Does the snout piece extend around the drain hole? Does the rear piece have 2 rivets on centerline?
I can see that it is not a really early one as the inspection plate thread ring is not riveted in.
Pan has seven rivets.
Snout piece extends around drain hole.
Rear piece has four rivets tota,l two of the rivets on C/L.
Thread ring is one piece (not horseshoes) not attached to pan.
Inspection cover has embossed edge and looks like the dipper area is deeper.
S/R number on block indicates March 1912
My August of 1912 Touring had the same arm reinforcement plates with no brazing inside. Because I had to weld-up cracks under the arm mounts, I re-riveted, then brazed around the internal plates and the internal diameters of the rivets. Worth noting is there were a number of small cracks around the rivets that became noticeable when I blasted the pan. These probably were not a structural issue, by no reason not to fully restore a pan while you have it off the car. I have rebuilt one 1911 and 2 1912 pans, where the 1911 had no internal plates and a riveted one piece inspection ring. Both 1912's had the un-brazed arm reinforcement plates and non-riveted one piece inspection clamp rings.