This past weekend after pulling the distributor from my 1FZFE (325,000 miles) to replace the O-ring I noticed that the plastic seals or caps for the G1 and G2 pick up coils were cracked and was able to lift one of them up revealing the coil underneath. At first I was just going to seal them up but noticed a bit of play in the vertical axis of the shaft and a very faint noise when holding the dizzy bracket to directly to/on my ear while turning the shaft (rough or dry bearing), so decided to install a spare 97 model dizzy I had on the shelf which only has 1/3 the miles on it compared to my original distributor. The lower mile dizzy had no noise or play in the shaft. Attached a few pics.
First shows the crud on the dizzy shaft. This tells me there is another reason to pull the dizzy as a PM, to clean out the shaft housing when replacing the O-ring. Those two open slits provide lube (splashed oil) to the shaft bushing. Second shows setting the air gap on the pick up of the replacement dizzy. I used .276mm for the air gap as it was about where the original pick up gaps were set at. The FSM says .2 to .4mm is good, but I don't understand why the FSM says to replace the dizzy housing if the air gaps are outside that range, the position/air gap of each pick-up is adjustable?? Last photo is the cracked cap or seal of a pick up, haven't decide yet what I may use to reseal/repair that. Just something to check next time you have your distributor out IMHO.
View attachment 881556
First shows the crud on the dizzy shaft. This tells me there is another reason to pull the dizzy as a PM, to clean out the shaft housing when replacing the O-ring. Those two open slits provide lube (splashed oil) to the shaft bushing. Second shows setting the air gap on the pick up of the replacement dizzy. I used .276mm for the air gap as it was about where the original pick up gaps were set at. The FSM says .2 to .4mm is good, but I don't understand why the FSM says to replace the dizzy housing if the air gaps are outside that range, the position/air gap of each pick-up is adjustable?? Last photo is the cracked cap or seal of a pick up, haven't decide yet what I may use to reseal/repair that. Just something to check next time you have your distributor out IMHO.
View attachment 881556
Last edited: