merc 115 4 stroke - wrng prop

[pattimo]

Hello-I have a mercury 115 4 stroke that had the wrong prop on it for about 2 years. Can anyone tell me what type of damage this has done to my engine?

 

[stevens]

Re: merc 115 4 stroke - wrng prop

Wrong in which way? Too high pitch lugging the engine, or too low pitch over-revving the engine?

 

[pattimo]

Re: merc 115 4 stroke - wrng prop

Over revving the engine.

 

[rndn]

Re: merc 115 4 stroke - wrng prop

Over revving by how much? Nobody can help without knowing the details. If it's over then you need more prop pitch, but how much depends on how many RPM's you want to reduce.

 

[rickdb1boat]

Re: merc 115 4 stroke - wrng prop

Unless you ran it over the redline all the time, then I doubt there would be any damage. I thought they had the rev limiter set at around 6200-6400 anyway..

 

[Bigjohn1]

Re: merc 115 4 stroke - wrng prop

There is a rev limiter on this engine where cylinders begin to be cut out at 6,200. What prop you have now?