Mallory distributor 2301105 2301106

[RUNNERBUN]

Hi everyone, I'm looking for some information regarding Mallory Distributors for the Model A.
I have a 1928 Model A with a Model B engine fitted and running a Mallory 2301105 single point distributor. I note that Mallory also make and supply a distributor for the Model B engine which is distributor model # 2301106.
Q.1 Can anyone tell me what the difference between the two distributors is.
Q.2 Can the Model A distributor be used succesfully on a B engine.
Q.3 Can anyone supply setting up or fitting instructions for either the 2301105 or 2301106 distributors.
Any help or recommendations would be greatly appreciated.

Runnerbun

[rally 1]

I'm using the 2301105 distributor in my banger engine.
Other than an extensive amount of time tuning the advance curve to my engine, it has been trouble free.
My distributor is a single point unit.
I believe that the 2301106 has a different advance curve.
Either unit is fully adjustable for advance rate and total degrees.
I'm using the MSD High Vibration coil.

Ken

[RUNNERBUN]

Thanks Ken, you have confirmed my suspicion that the only difference between the 2301106 & 2301105 is the advance curve.
I have done considerable mileage with my 2301105 in the B Engine and it has been trouble free but I get the feeling that at normal cruising speed the advancing is not correct. I'll do some homework and see how I go with changing the advance curve. Any advice on changing the advance curve to suit the B engine would be appreciated.
I have added a pointer to show TDC so timing can be set by regular timing light.

Runner

[1931 flamingo]

Go over to the EV8 board and look for posts by BUBBA. He deals w/ distributors, and mallory's, 4,6,8 cyl. He will probably be able to help you, w/adv curves, springs,etc.
Paull in CT

[just plain bill]

Originally Posted by RUNNERBUN

Thanks Ken, you have confirmed my suspicion that the only difference between the 2301106 & 2301105 is the advance curve.
I have done considerable mileage with my 2301105 in the B Engine and it has been trouble free but I get the feeling that at normal cruising speed the advancing is not correct. I'll do some homework and see how I go with changing the advance curve. Any advice on changing the advance curve to suit the B engine would be appreciated.
I have added a pointer to show TDC so timing can be set by regular timing light.

Runner

Timing kit with general (not specific A B) instructions, springs, plus timing key to change existing advance available at Jegs, Summit and others. Check to see if it covers your distributor.

[RUNNERBUN]

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Thanks Paull & P/Bill. I will follow up both leeds.
Runnerbun

[Mike V. Florida]

According to what I see the '05 is as you stated a single point dist and the '06 is a dual point dist. The '05 is a replacement for the A and the '06 for the B.

You might like this as well,

http://g0ddx.ath.cx/Docs/Mallory%20U...d_Vac_Dist.pdf