Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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On-Vehicle Balancing

On-Vehicle Balancing
On-vehicle balancing will help correct vibrations due to brake drum, rotor, and wheel cover imbalances.

1. During on-vehicle balancing, do not remove the balance weights from the off-vehicle dynamic balance.

NOTE: Do not allow the front suspension to hang free. When the drive axle is run at an extreme angle, extra vibrations can occur, as well as damage to seals and joints.

2. If more than 28.4 grams (1 ounce) of additional weight is required, split the weight between the inner and the outer rim flanges.








3. Spin the driven tire and wheel assemblies using the engine.

WARNING: Do not spin the drive wheels faster than 55 km/h (35 mph) as indicated by the speedometer. This limit is necessary because the speedometer indicates only one-half of the actual wheel speed when one drive wheel is spinning and the other drive wheel is stopped. Personal injury and damage may result from high-speed spinning.