Changing a Timer on a Model
T Ford
See www.andersontimer.com
for additional helpful information.

Unpack your New

Remove the oil fill cap and plug the Move the wires one at a time
to the new
hole to get more space to work. housing. Hopefully your old timer will
Remove the old housing and rotor. be
cleaner than mine was. Install the
Install the new rotor new housing, connect
the timer rod and
fully retard the spark at the steering
column. (push the spark lever fully
forward)

Remove No. 1 spark plug,
reconnect Note
the plastic rod (this one from a weed
the wire and set it up on the head
trimmer) has a ferrule
larger than the hole
as shown.
(Better yet, remove all in
the fitting so it can’t fall in. The
plastic
plugs, clean and re-gap to .025 in.) rod is
following the piston’s travel up
Look in the plug hole with a flashlight and down. Here, the piston is moving up.
or use a plastic fitting as shown with a
plastic rod to determine piston location.
Here, the piston is down.

Here, the piston has reached the top Adjust the timer rod for the proper timer setting
and is slightly on the way back down. The EZ-Bend tools make
the job easy.
You can see the plug firing. Note that The EZ-Bend tools and the plastic rod
and
the plug only fires every other
revolution, fitting are available from Frank’s Timer Service.
so you may have to turn the engine
over several times.
The timer is installed and properly adjusted so that
when starting the engine with the spark lever fully retarded, the plug will not
fire until the piston is on the way back down on the compression stroke. If the plug fires too soon or too late,
adjust the timer rod making it longer or shorter to get the correct
adjustment. Use the EZ-Bend tools.
The correct adjustment is critical to be sure the
engine does not fire before the piston reaches top dead center. Severe damage can occur to the Bendix drive on electric starters and to bones, tendons and
ligaments on Armstrong Starters.
Please take the time to do it right.
User assumes all risks and liability.

Note the timer removed was an
Frank’s Timer Service, 2251 Morgan Lane,
Ingleside, TX 78362
Telephone: 361-230-0318E-mail:
Frank@andersontimer.com www.andersontimer.com

Roadside Service for
the Dependable Model T Ford
(my
1912 Delivery Truck)
Frank’s Timer Service, 1880 Yale Bridge
Road, South Beloit, IL 61080
Telephone: 815-289-3440, E-mail: Frank@andersontimer.com www.andersontimer.com