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FE Technical Forum / Distributor Gear Roll Pin Broke
« on: May 23, 2022, 09:09:20 PM »
Took our '69 Shelby to Road America for the Optima event this weekend. The car (and I) have a lot of sorting out to do, but the big problem was a broken distributor gear roll pin. Using a Precision Oil Pumps blueprinted HV oil pump/billet driveshaft and Edelbrock (think MSD) Pro Flo 4 distributor with their gear/roll pin. Not running lots of oil pressure with a Canton remote filter and Mishimoto cooler (thinking about installing the high pressure spring kit). Going to put the MSD 85813 gear on the distributor (Comp roller hydraulic cam with Morel 8591 lifters)
Question 1: Is the distributor gear supposed to make contact with the block?
Question 2: Is there a procedure to make sure the bottom of the gear is a specific distance from the point where the distributor housing makes contact with the block to the bottom of the gear?
Question 3: Should the new gear/distributor shaft be drilled out for a larger roll pin?
Anything else?
For what it's worth, the engine pulled very nicely (thanks for the great job on the heads Barry) and I look forward to getting it on the track again. Yeah, we were the only FE there...
Question 1: Is the distributor gear supposed to make contact with the block?
Question 2: Is there a procedure to make sure the bottom of the gear is a specific distance from the point where the distributor housing makes contact with the block to the bottom of the gear?
Question 3: Should the new gear/distributor shaft be drilled out for a larger roll pin?
Anything else?
For what it's worth, the engine pulled very nicely (thanks for the great job on the heads Barry) and I look forward to getting it on the track again. Yeah, we were the only FE there...