Socket / Allen size for Barnes & Jones 122A

OatKing

What is the correct socket size for the 122A cap and Allen wrench size for the spud?

Using a micrometer I estimate 1 7/16" socket and 9/16" Allen, but I want to make sure before. I called the company and they have a special wrench for the cap, but i'd rather have a socket. Been down the road of picking the wrong tool for the job too many times. Thanks!

Gordo

A 1-7/16" 6-point socket should do it. The special wrench B&J has is a reasonable "assembly" tool as it is only stamped metal, but to depend on it to get the cap off all the time without it being wrenched off beforehand and a bit of anti-seize used, is a bit much.
I've found a bit too much variation in the cap sizes and B&J's wrench sizes. For example, I've had it where a particular B&J wrench is too small, I've filed it to fit a particular B&J cap, then it's too sloppy for other caps! I've got at least a half-dozen B&J wrenches around. I just grab a proper impact socket and have done.

OatKing

Thanks @Gordo! I'll get the socket on order.

What do you use for the radiator spud? I noticed it's shaped for an Allen key.

EBEBRATT-Ed

I have removed many spuds. When I don't have something that will fit I get a piece of steel and grind it until it fits.

I am sure the right wrench is better,

It's just another option