Engine

Page 14

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Volvo Bus Service and Maintenance Manual

 Intake air pipes and hoses
14 Check hoses and pipes. Make sure they are securely fitted and do not leak.
 
 Starting heater
15 Check connections and function, also the timer relay.
 

Intake air pipes and hoses

On the clean side of the air filter the flexible hose must be free from damage and its connections to the air cleaner and turbo-compressor must not admit unfiltered air. Loose connections, etc., will cause a lot of dust and impurities to get into the engine and result in unnecessary cylinder wear.

Check the air intake rough filter and clean if necessary.

Air intake hoses

Starting heater

If the starting heater is working properly, it should feel warm on the outside when felt by the hand.

WARNING! Be careful! The area around the starting heater may be too hot to touch.

Starting heater, engines THD100, 101, 102 (G-engines)
Engines THD101, 102 (K-engines)
Starting heater, engines THD101, 102 with intercoler (k-engines)
Engines THD101, 102 (K-engines)