The flip top oilers I received from a vendor appear to be zinc plated.
An original oiler I have appears to be zinc plated on the lower part where it is pressed in and the upper "lid" is dark, either painted or black japan finish.
Can anyone verify the original finish of this part?
And for that matter, how about the grease cups on the U-joint, drive shaft, rear wheel bearings? Mine are not painted.
Eric, I can't speak for the oilers but, the original grease cups on my 1919 appear to be nickel plated brass.
The flip top oilers were originally nickel plated.
Were steel grease cups plated or painted? The ones on my car (27 Roadster) are plain steel with no coating and I see a lot are painted black on other cars.
In a factory photo of early '26 models, all the front axle oilers are black. They may have been nickel plated but they were painted black coming down the assembly line.
First of all, I've never seen a nickel plated oiler for a Ford. I put NOS oilers on my '25 a few years back, the big ones and little ones, and they all appeared to be zinc plated. All of them came out of Bob Bergstadts stock from years past.
The grease cups I've seen appear never to have been painted, but probably did when they painted the chassis. I've had all kinds of NOS grease cups over the years, and they were un-painted.
I can't imagine that ford would have left the oil caps and grease cups off during the painting process because the holes would have been closed with paint. From what I've read ford wanted to skimp on time and cost everywhere they could.