Engine Break-In
03-25-2007, 07:30 AM
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Engine Break-In
I have 496HOs - read the Mercruiser manual and it basically says to vary speed, avoid extensive idling and no WOT for the first 10 hours (3/4 max).
I have heard several say that it is good to run at WOT a few times to help seat the rings (small bursts - 30 seconds).
The obvious thing is to follow the manual however, will I hurt anything if I open her up for a short burst in the first few hours? Gonna be toigh not too
I have heard several say that it is good to run at WOT a few times to help seat the rings (small bursts - 30 seconds).
The obvious thing is to follow the manual however, will I hurt anything if I open her up for a short burst in the first few hours? Gonna be toigh not too
03-25-2007, 07:52 AM
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Well, I broke mine in by the book. But my buddy, who bought his boat at the same time, runs em like he stole em. From day one! And he has had no issue with his...except a blown drive. 
The HO's are sweet motors for sure.
I only hope I will be so lucky with my 525's.
The HO's are sweet motors for sure.
I only hope I will be so lucky with my 525's.
03-25-2007, 08:24 AM
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03-25-2007, 10:32 AM
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03-25-2007, 11:03 AM
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