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post #1 of 4 Old 03-02-2012 Thread Starter
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Ramp Launching

For folks who launch their boat with inboard via a ramp - do you block the exhaust outlet (say a tennis ball?) to prevent the chance that water backups up into the engine prior to starting, as the angle may put the entire exhaust system including the riser and back cylinder, below the waterline?

I think this needs to be a practice...but have never heard it discussed as such. Maybe I've just missed it...This picture reminded me.
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post #2 of 4 Old 03-02-2012
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I always put a piece of duct tape over mine. In my case, I doubt that the riser ever goes under but still, it would be nice not to find out.
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post #3 of 4 Old 03-03-2012
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Never do it!
I've got a flapper valve on the transom, but I'm sure it's not watertight.
I've never met anyone who does it, and I've never heard of anyone having a problem.
I suspect your over analyzing this stuff.
sam :-)

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post #4 of 4 Old 03-03-2012 Thread Starter
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Quote:
Originally Posted by Liquorice View Post
Never do it!
I've got a flapper valve on the transom, but I'm sure it's not watertight.
I've never met anyone who does it, and I've never heard of anyone having a problem.
I suspect your over analyzing this stuff.
sam :-)
Hmmm...the subject is on the table due to a real world engine failure. The Yanmar mechanic considers this the probable cause of head rebuild for a low hours engine. The tennis ball was his suggestion.

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Last edited by sailingfool; 03-03-2012 at 09:18 AM.
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