This guide was prepared as a reference for the make, model,
part number, lens color and arm style to help you quickly:
* Identify which semaphores you have, or
* Determine the correct semaphore for your vehicle.
Year |
Model and Part Number |
Brand |
Lens Color |
Arm |
1940-1943 |
19290-left hand |
|
Orange |
Ribbed |
1940-1943 |
19294-right hand |
|
Orange |
Ribbed |
1943-1946 |
20 953 021-left hand |
|
Orange |
Ribbed |
1943-1946 |
20 953 022-right hand |
|
Orange |
Ribbed |
1946-July 1949 |
AL 142.001
Right and Left
or
L143.001-2
Right and Left |
SWF |
Orange |
Ribbed |
July 1949 -December 1953 |
AL.143.001.1
or
L.143.001-2
or
111 953 021 |
SWF |
Orange |
Ribbed |
July 1949 -December 1953 |
111 953 021 |
SHO |
Orange |
Grooved |
January 1954 -August 1957 |
AL 143.001.1
or
111 953 021B |
SWF |
Orange |
Smooth |
January 1954 -August 1957 |
111 953 021A |
SHO |
Orange |
Smooth |
September 1957 to August 1959 |
111 953021D |
SWF |
Yellow |
Smooth |
September 1957 to August 1959 |
111 953 021C |
SHO |
Yellow |
Smooth |
September 1959-August 1961 |
111 953021F |
SWF |
Yellow |
Smooth |
September 1959-August 1961 |
111 953 021E |
SHO |
Yellow
K20605/1 |
Smooth |
Convertible |
151 953 021 A
or
151 953 021 B
or
15.143.001.1 |
SWF |
Orange |
Smooth |
Semaphore FAQ - General
How do they work?
Semaphores are operated by a push/pull solenoid that pulls on a
piston connected to the arm and lens assembly.
The upward rise of the arm is cushioned by a spring so that the
action is not too strong. When the semaphore is
completely extended from the side of the car, the pointed end of the
piston touches a metal contact sending a signal
to the light bulb inside your speedometer confirming that your turn
indicator is on. The semaphore arm retracts into
its pocket in the side of the car under the force of gravity and a
small return spring when the turn signal switch is
turned off.
What color should the arms be?
The arms were always painted body color; however, the arms of
replacement semaphores purchased at the dealership were black.
What is the difference between SWF and SHO?
SWF and SHO are two different manufacturers of semaphores. Parts
are not interchangeable.
What is the difference between ribbed and grooved semaphores?
Ribbed semaphores were made by SWF and grooved semaphores by SHO.
These two types are often confused but you can tell the difference
by the:
* SWF or SHO logos on the underside of the body and/or on the
lenses.
* Part numbers on the underside of the body and/or on the lenses and
referring to the chart above.
* Look of the arm. For ribbed semaphores, visualize a flat surface.
On the outside edges of the ribbed arm material has been added (a
rib) above the flat surface of the arm. For grooved semaphores,
visualize a flat surface. On the outside edges of the grooved arm
material has been removed (a groove or channel) from below the flat
surface of the arm.
Semaphore FAQ - Troubleshooting
Why don't my semaphores rise properly? (They rise slowly, bind or
don't rise at all).
Recommended steps:
1. Ensure that the semaphore is centered in the semaphore post. It
may bind by rubbing on the side of the body post (not centered left
to right) or may bind on the bottom or top of the post (not centered
top to bottom).
2. Remove semaphore and inspect the piston-it may be rusty or very
dirty-if so, it must be replace or cleaned.
3. Check tension of return spring because it may be too great. This
is the spring that is on the side of the semaphore and winds around
the hinge pin.
4. Check all moving parts and linkages by slowly moving the arm up
and down to see if any part is binding or catching. Sometimes the
pin that goes through the tail of the piston is offset and catches,
other times the link between the piston and the piston tail is bent
and catches or binds.
Can I operate semaphores on 12 volts?
This topic is covered in an article in the June 1997 issue of
"Hot VWs". I strongly encourage running your semaphores on 6 volts
if it is at all possible. If you must use 12 volts, your options
are:
* Install 12-volt, 3-watt semaphore bulbs and you are done! The main
downside is that the push/pull solenoid may quickly get hot and
possibly burn out. If you choose this option, don't leave the
semaphores "up" for long.
* Install a 12-volt to 6-volt step down reducer. A key drawback is
the heat produced by the device. It must be safely mounted well away
from any other wiring, parts or person that could be damaged or hurt
by the heat KYMCO Motorsports in Costa Mesa, California carries
reducers including a step down adjustable type reducer. |