Knock sensor
08-28-2011 | 05:08 PM
#2
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Joined: Dec 2008
Posts: 89
Likes: 1
The knock sensor retards the timing when it senses detonation. If the knock sensor is disconnected the engine can be destroyed from an ignition system that is too far advanced (thus detonation).
Generally the knock sensor protects the engine from poor gas, a severely overloaded boat/overpropped boat or extremely hot weather.
Generally the knock sensor protects the engine from poor gas, a severely overloaded boat/overpropped boat or extremely hot weather.
08-30-2011 | 08:32 PM
#5
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Joined: Apr 2007
Posts: 267
Likes: 2
From: Williamston / Grand Haven, MI
The knock sensor retards the timing when it senses detonation. If the knock sensor is disconnected the engine can be destroyed from an ignition system that is too far advanced (thus detonation).
Generally the knock sensor protects the engine from poor gas, a severely overloaded boat/overpropped boat or extremely hot weather.
Generally the knock sensor protects the engine from poor gas, a severely overloaded boat/overpropped boat or extremely hot weather.
Thanks.
08-30-2011 | 11:15 PM
#6
Charter Member # 55
Joined: Oct 2000
Posts: 20,232
Likes: 2,482
From: Omaha/LOTO
A boat that is over propped will not reach the recommended WOT range. It causes the engine to work much harder. It like going up a small hill in an empty truck vs going up a steep hill towing 10k.
The engine works harder and cylinder temps increase which increase the risk of detonation.
The engine works harder and cylinder temps increase which increase the risk of detonation.
