Winnipesaukee Forum - View Single Post - Bill would allow 'switchable exhausts' on boats

Woodsy · 06-20-2011, 03:04 PM

Using any type of switchable exhaust at an engine RPM higher than what the mfr recommends may cause the internal flapper to break or an excessive water amount too close to the exhaust port... this can potentially cause reversion! Reversion (water being ingested into the engine via the exhaust valve due to camhaft profile) usually equals catastrophic engine failure....

Woodsy

06-20-2011, 03:04 PM	#49
Woodsy Senior Member Join Date: May 2004 Location: Weirs Beach Posts: 1,949 Thanks: 80 Thanked 969 Times in 432 Posts	Using any type of switchable exhaust at an engine RPM higher than what the mfr recommends may cause the internal flapper to break or an excessive water amount too close to the exhaust port... this can potentially cause reversion! Reversion (water being ingested into the engine via the exhaust valve due to camhaft profile) usually equals catastrophic engine failure.... Woodsy __________________ The only way to eliminate ignorant behavior is through education. You can't fix stupid.