Quote:
"Before drilling a new hole for the roll pin, ensure there is sufficient end float at the top of the gear. (Use a shim or similar when drilling). The clearance required is minimal but is needed to ensure the distributor spins freely" in the e15 modification wiki.. there are some things that aren't clear to me.. can someone point out what the roll pin is and where it is on the dizzy and what kind of clearance is needed?
"drill a new hole in the shaft, grind, file and drill the housing" - what is the hole in the shaft used for and where is it drilled.. "grind file and drill the housing" - where, by how much and why?
The cog that meshes into the cam shaft gear is located on the end of the distributor shaft with a roll pin. The roll pin is simply a piece of flat metal rolled over to make a shaft or sleeve, this sleeve (roll pin) locates and secures the distributor cog/drive, it's purpose serves as locating & securing pin. So at the top of the cog you will see a hole that travels right through the shaft out to the other side. And this roll pin is pressed or tapped into and through the hole to secure the gear.
The E15 dizzy almost identical to the A-series distributor [in it's lower half design] except that it has a different fitting at the end (not a spiral cog). The wiki article says to remove this and the A-series cog, from a A-series distributor will slide over the shaft except the shaft has no hole for you to put the roll pin through. So you need to drill the hole through the shaft so as you can then press or tap this rooll pin into and therefore secure the cog to the shaft of the distributor.
If you have a stock distributor at hand you will notice that when you pull on the cog there is a slight bit of movement, that gap is 'the clearance required' that you need to judge when drilling and installing the new cog gear.
I can upload some pics if you like??
Transfer
