496 HO sounds much louder when cranking
#1
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Joined: Jan 2012
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From: Howell, MI
Twin engine boat... The problem started a few days ago. Noticed when starting the engines that the port engine when cranking over to start was much louder and higher pitched when starting vs. the starboard engine. I can't figure out or even start to imagine what the issue could be but never had any issue like this prior. Any ideas? Otherwise, it's running great and no odd noise when running. Sounds to me like a noise from the valve area of the engine but they only have about 425 hours, so I'd be surprised if there was a major issue.
Last edited by APEXrtx06; 09-06-2016 at 06:43 PM.





