Yes, those are NICE, as they allow you to remove the distributor
from the top, without dropping the oil pan.
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They use an aluminum adapter, to go from the distributor size shaft,
to the oversize hole.
I'm not exactly sure of there origin.
On 2/1/2020 4:09 PM, Jim Bollman wrote:
I know I saw a bare crankcase with a bigger
distributor hole at Wauseon years ago, now I have no idea what
it was, maybe someones experiment.
On Feb 1, 2020, at 3:51 PM, Butch via
Nope Jim, same size hole, they are
interchangeable. Be aware, the tune up parts, for the
large distributor, are MUCH more expensive than the
more common, small distributors.
I believe that they were used on some commercial
engines. The racers liked them, supposedly they were
more stable at speed, but I never checked one in my
distributor machine, to verify that.
That said, they are easier to work on and as I recall,
the points are a bit easier to set, also.
On 2/1/2020 2:59 PM, Jim
I have never owned an engine with the big
distributor and I don't know why it was made, but it
sticks in my mind that it takes a bigger hole in the
crankcase. There are not a lot of them around.
Hopefully someone knows more about the
On Jan 31, 2020, at 11:56 AM,
dkduster70 via Groups.Io <dkduster70@...
Is there anyone that can clarify
some information about the small and large
Are they interchangeable, and is there any
advantage to using either a large or small
one if they are interchangeable?
I have wondered about this, and it seemed
relevant to this conversation.