shuckett

Will do, but I am limited to use of one arm at the moment (Rotator Cuff surgery). 🤕 Will need another month or so before I can justify crawling under the old girl to actually do what's necessary with the oil pump. I can and will take the measures of the distributer between now and then.

Well, the teeth of both gears seem OK; no nicks, chips, breaks, scoring, or other visual evidence of damage. The distributer rotates fully smoothly, however end play of the distributor shaft does seem somewhat excessive, no more than 1mm though. Lateral play of the shaft is nil. Looks like I'll need to invest in a micrometer to take some measurements of the system. Next up is a thorough inspection of the oil pump and pan. Being an owner of a Rover V-8, I am well aware of the issues one can have with the pump.

Hey Folks, I am stumped and hope that one of you may have an answer/solution for this peculiar problem. I am resurrecting a 1968 Buick 225 with a 430 V-8 for my uncle. It sat (but started regularly) in storage for nearly 20 years before I started work on it. At first it started and ran fine, but over time the engine ran rougher and rougher until one day it would not start. Upon thorough inspection, I found that there was no spark and that the rotor was not spinning with the engine. Digging deeper I found that the roll pin which secures the distributer timing gear to the distributer shaft had sheared off, leaving the gear to float. The distributer gears look fine and the timing chain/gears are spinning when the starter is engaged. Also, the oil pump moves freely when turned with an screwdriver through the distributer port. So, I replaced the roll pin, reset the timing, and it started/ran. However, after less than an hour run time, the same thing has happened; roll pin has sheared. Before proceeding, I would like to ask what could cause of this pin to shear? Second, Solutions? Thanks in advance,