Originally Posted by beamishken
A few seconds on the rev limiter wont do a fit engine any harm & will prove whether the problem is a miss reading tacho or an overpropped engine
have you never had a boat airborne? far worse for an engine to go offload onto rev limiter then back on load when the prop grips the water
I bet there isn't a member on here who hasn't had a huge grin on hearing the engine bark as it comes clear of the water!
It proves nothing worthwhile,and the motor's oil delivery isn't built to deal with prolonged revving at high revs with no load. Problems under load are just as likely not to be replicated. You could even have a 50psi compression drop on 2 cylinders and it wouldnt show. As a diagnostic tool it's invalid.
(and if you're still under full throttle when the boat hits the water you need to learn to drive it)
Originally Posted by Davie
What would it prove reving that engine to any amount of revs in neutral. It will only have sparks on 6 cylinders after you put it into gear.
As I said, As a diagnostic tool it's invalid.
Originally Posted by Bigtalljv
And newer engines have a neutral rev limiter. My 2005 suzuki will only go to 3000 or so in neutral.
Can you try a different tach?
Again,as a diagnostic tool it's invalid.
44mph at WOT actually sounds a bit slow to me-as though it's overpropped.
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