: #1 on dist cap

04-20-05, 09:52 AM
How do I determine what the #1 is on my dist cap.

Their is no # on the cap, and the haynes manual is less than desirable.

04-20-05, 10:37 AM
Trace the sparkplug wire from the number 1 plug. Front driver side.


04-21-05, 08:09 AM
#'s are not usually put on the distributor cap because the different GM divisions that may use the same cap for their V8s will have different firing orders.

A factory Service manual will give you a section on GM HEI distributors and will show you the referencing position for the distrib as well as the positions for the plug wires.

I noticed that this is true in the Cadillac FSMs for the 368 and the HT4100