In Reply to: Re: Found an odd distributor posted by Tim Daley(MI) on October 19, 2018 at 05:05:41:
Here are some pictures of the OEM Ford Front Mount distributor, p/n 9N-12000 assembly. The base casting number is 9N-12131 as shown in cast raised characters. Casting numbers are never listed in the parts books, only assembly numbers and individual parts are. The circled cast raised (2) is simply a mold number. Another identifier of an OEM unit is the vent and drain hole plugs shown.
FORD 9N-12000 DISTRIBUTOR BASE w/ VENT AND DRAIN PLUG SHOWN:
9N-12131 BASE CASTING NUMBER:
Note the cracked aluminum boss around the cam and bushing end. This is what happens when you install the unit 180° off. I keep this as a reminder of what not to do.