KnockBlock G4+ (KNB)

KnockBlock G4+ (KNB)
(Import only)

G4+ KnockBlock is an essential tuning tool that can help detect incorrect ignition timing, lean fuel mixtures and mechanical issues early. Used with headphones or noise-canceling earmuffs, it has specialized filtering to help you hear and detect knock in time.

Listen to one or two knock sensors
Special filtering improves the signal-to-noise ratio
Can be used with headphones, headsets or noise-canceling earmuffs
Rechargeable lithium battery with long battery life
Durable CNC aluminum housing
Headphone connector on a flying lead
Can be used with all OEM knock sensors

*** Can connect directly to a laptop to record engine noise or analyze knock sensor frequency using PCLink G4+. ***

Please note that headphones with their own noise filtering may be unsuitable for use with G4+ KnockBlock

What's in the box:
G4+ KnockBlock main unit
2 sensor harnesses (attached)
*Quick start guide
1 Mini USB cable
2 OEM Bosch donut-type knock sensors 
2 small Link Engine Management stickers

Operating instructions:

1. Install the knock sensor(s) in a suitable location on the engine, usually a solid mounting point on the block near the cylinder head. If using only one sensor, leave the unused sensor cable disconnected.
   
2. Turn the volume control clockwise until it clicks.
3. The LED indicator turns blue when KnockBlock is operating.
   Turn the volume to minimum (fully counterclockwise)
   
4. Connect headphones to the 3.5 mm audio socket
   
5. Start the engine and carefully increase the volume (clockwise) until you can hear the engine's mechanical noise. Adjust to a comfortable listening level.

Charging:

1. Switch off KnockBlock by turning the volume control counterclockwise until it clicks.
   
2. Connect the USB charging cable to KnockBlock's Mini USB socket. Charge from a standard PC, laptop, car or phone USB charger (maximum 2.1A at 5V).
   
3. The LED is red while charging. When it turns off, the battery is fully charged.
   
4. Charge G4+ KnockBlock after use and before storage.