Timing an electronic Mallory dostributor

Joined
Aug 13, 2005
Messages
2
I have a 1975 FJ55 with a stock F motor. I just got it and it has a Mallory electronic distributor. I have never delt with one before and was wondering how to time it. There seems to be no way of disconnecting the advance. Thanks for any help.
 
Joined
Mar 27, 2003
Messages
6,169
Location
Georgia Tech
let it warm up, hook up a vacuum guage to manifold vacuum.

Loosen retaining bolt at base of distributor, with engine idling, rotate distributor for maximum/ most consistent (non flucuating) vacuum.

The advance should not have any appreciable effect at idle. If it is a vacuum advance simply unplug it and plug the hose.
 
Joined
Aug 13, 2005
Messages
2
It has no vacuum advance, just 3 wires going to it. Check it by vacuum?
 
Joined
Jul 2, 2002
Messages
1,424
Location
New Hampshire
I have a mallory on mine with no vacuum advance. But mines got points. I set my timing to the bb on the flywheel, just like stock and it seems to be fine. Mine gets to about 30-32 degrees advance at around 34-3500rpm. Vacuum advance sure would be nice though. I may get another toyota (maybe a non-usa one) distributor when I do my engine rebuild.
 
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