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-   -   Engine surges when warm (https://www.offshoreonly.com/forums/general-q/336484-engine-surges-when-warm.html)

jeffswav 04-19-2016 01:05 PM
Originally Posted by BUP (Post 4429953)
If he has the OEM service manual or google it they Merc have a testing procedure for knock sensor and knock module right after for the T bolt V ignition testing flow chart.

Knock sensor install is 12 to 16 ft lbs no more and nor less installed per Merc specs. I just did one on a 350 HO mag.
What symptoms did you have on the one you replaced?

BUP 04-19-2016 01:28 PM
lagging and seemed not crisp throttle response

jeffswav 04-25-2016 08:53 AM
Knock sensor fixed the problem.


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