Checking Drive Belt 2

Checking drive belt

Preliminary work

1. Remove connecting tube from air cleaner to engine.

Checking drive belt

ATTENTION Risk of damage!
^ If the drive belt is removed when it is hot, it may become deformed and damaged.
^ Never remove the drive belt when it is hot - let the engine cool down!

ATTENTION Consequential damage of broken pulley belt!
^ Due to a broken drive belt during driving, surrounding components (panelling, electric cables etc.) can be damaged by thrashing or flying belt parts.
^ Parts of the drive belt can jam behind deflection rollers or vibration balancers and damage surfaces and sealing rings there. In particular, the sealing ring of the crankshaft vibration balancer can become leaky as a result of a broken belt.
^ Following a belt breakage the surrounding components and the interior of the engine compartment must be inspected for damage, and if necessary damaged parts (sealing ring of the crankshaft vibration balancer, deflection rollers, panelling, lines, electric cables etc.) repaired or replaced.
^ The reason for the belt breakage must be established. Check deflection rollers or crankshaft vibration balancers for prior damage.

Note: If spark plugs must be changed in the course of maintenance operations, the drive belt should be checked when the spark plugs are removed. The engine can then be cranked easier.





1. Mark the rolling direction of the drive belt with chalk.
2. Turn engine at the vibration damper in the direction of movement using a socket wrench (a/f 19) until the chalk mark is at the same place again. While turning at the crankshaft, check the belt at the deflection rollers for signs of damage.

Information

Damage symptoms

Note: The following table indicates damage which necessitates replacement.








Subsequent work

1. Fit connecting tube from air cleaner to engine.