Servo 132 scale was made between 1978 and 1983.
in 1983 Servo 132 was discontinued.
There appears to have been 1 revision to the cars and tracks.
The early track has an error with the wall height of the curve track sections for inside lane bumper hooks.
the early cars: Have Contact shoes without Brushes, A riveted in place front bumper, front pot metal cast wheel hubs.
[picture of old car]
Late track, has corrected wall height for the inside lane bumper hooks.
The late cars: have contact shoes with brushes, the front bumper is screwed to the chassis with flat head screws making it easy to make repairs, the front tires are grey plastic.
[picture of new car]
Unique to 132 scale: wheelbase is adjustable there were many different wheelbase lengths and body styles for 132 that came from the Carrera Universal slot car line. the different wheel bases require different length steering gears from 4mm to 17mm, these special pinion gears are very hard to find and are required for the different body wheelbases. Racing motors were also available for the 132 servo product line sold with different length pinion gears with separate part numbers.
Servo 132 went though some revisions. A major Issue was a design defect with the Curve #1.
The defective version on the left has the inside lane retainer as too low. this low wall causes the 132 chassis bumper hooks to pop off very easily and most cars cannot stay on the inside lane, they pop right off.
These Curves are defective and pretty much worthless however if you have a complete early set with this defect you can use the cars with full function by installing a 2mm bumper spacer the template is located below. Just install it between the bumper and the chassis and it will lower the front bumper 2mm allowing the bumper hooks to be fully seated when the car drives the inside lane. Combine the bumper spacer with my Nerf design and the car will drive the inside lane with no problems.
Combining curves with the higher and lower wall is a bad idea and you will not be able to use the bumper spacer with the high wall versions. this is only if you have an old set and all the curves are defective as shown.
Build Nerf Bars
A problem i noticed with 132 scale was a lack of Nerf bars. many car bodies allow the rear tire to rub the inside lane retainer wall, causing the chassis to derail and stall out. This problem is worse with early versions of the 132 track system that have a design error and have a very low inside lane retainer wall that slides under many of the bodies. So a quick fix is to cut some plastic sheet about 1-2mm thick into a nerf bar.
The Nerf bar will fit any wheelbase chassis and can be adjusted, use Shoe Goo to hold it to the chassis. Shoe Goo can be easily removed and won't damage the chassis. the curve cut into the sides of the Nerf allows the chassis to track Closer to the retainer wall in the inside lane and ride it smoothly. It protects the rear tire from making contact and makes entering a curve easier.
Lower the front bumper
Located in the file for the Nerf bars is a template for a bumper spacer. Later 132 chassis have a detachable front bumper, the spacer is designed to fit between the chassis and the bumper. the bumper screws then pass through the bumper and spacer into the chassis and hold everything together. the effect is the front bumper is lowered slightly. This is to compensate for Early 132 track designs with the lower inside lane retainer wall design error. it will allow any 132 servo car to hold the inside lane correctly with the defective 132 servo track. it lowers the bumper hooks to fully grip the retainer wall.
You can use any material up to 2mm even lead sheet to add lower weight distribution and help the cars increase speed when driving the inside lane in curves.
Do not exceed 2mm of thickness or the bumper hooks will smack into the top of the retainer wall.
I attempted a Digital Conversion to Servo 132 which did not work well at all and the project was aborted.
there were mechanical aspects to the 132 scale that caused problems:
1) the track is of older design and uses narrow rail conductors, this caused the digital signal to be lost easily.
2) the amp draw of 132 was blowing the transistors for the servo conversion. it was also causing heat to build up on the mosfets and causing the PRO-X controller to shutdown.
conclusion: digital servo 132 was not viable the cars ran glitchy and no mater how much work you put into the conversion it was just not going to work correctly. Digital does work for 140 scale with a correct combination of parts.
Here is the digital installation
I built 2 132 servo Digital cars for testing. After testing and finding problems the 2 prototypes were scraped and the parts used in a Digital Servo 140 conversion.
original hosted website: http://www.carrera-servo-140.de/
English translation: Carrera Digital Servo Conversion Manual
Great sites for 132 paper crafting.
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