Drive +Drive Belt

Driving belt

The driving power is transferred by the motor using a Poly v belt directly to the rear axle (Series I vehicles used a toothed, Gilmer belt). The tension of the belt is regulated by a two roller tensioner enclosing the driving pulley. Unfortunately there are difficulties again and again with this drive system, so that belt life is often short. The belt slips, then tracks toward the motor and mills itself to pieces. Often one hears noises before the belt is quite ruined, and there will be some cords hanging from the belt.


The belt is structured like a spiral with a common back. If the belt tears itself can one often the away-hanging pieces off cut, with a side cutter or a sharp knive. With the belt remainders one can possibly limp home.

 Belt wheel (Drive Pulley)

Altes Kunststoff- riemenrad With the belt drive there were some problems. The large belt wheel break, particularly in vehicles with more armature current (torque). There were the following variations on the belt wheels:



  1. Plastic wheel (series 1 toothed belt)
  2. Plastic wheel with resin filled (series 1 toothed belt)
  3. Sheet metal wheel
  4. Sheet metal wheel with stronger sheet metal
  5. Aluminum wheel with lateral bar (company: Comb)
  6. Aluminum wheel spherically (series since 97)

The original sheet metal wheel (type 3 above - RRY) distorts itself in itself and breaks by fatigue.

The dealer Joachim Comb solved this problem, together with me and a mechanical engineering company, and aluminum belt wheels was devloped.

The current status 97 factory-installed delivered belt wheels also have a lateral bar for belt guidance, but are also spherically turned and are likewise substantial - this is to now solve the problems. (If you break a drive pulley, I suggest you order one of these from the factory - RRY)

Driving belts change

Who has something experience in " screws ", can a driving belt change.

Alternatively one can use also a special tool to belt breakdowns.

TIP: With the next belt change, thread a back-up belt on the rear axle, do not install it, just leaves fastened in place so that it doesn't touch any wearing parts.