Cant get boat upto speed?

[arw2009]

Hey everyone im hoping someone can guide me in the right direction, I have my first boat it has the merccruiser v6 4.3 . I can not get this boat up top speed im topping out at about 8mph and the rpm's are reading about 5 g's at 8mph. It feels like something pulling it back so to speak? and i also can not get it to go into reverse? Im very new at boating but all it seems to be is push the trigger under the handle and put in in reverse, Has anyone any idea what these issues may be?

Thanks for any advice!

Arthur.

 

[jtybt]

Re: Cant get boat upto speed?

That's usually when happens when you forget to untie the trailer.


Seriously, sounds like a spun prop hub or coupler.

 

[grahamh]

Re: Cant get boat upto speed?

If it's turning 5000rpm, then and you're only moving 8mph, it's a lot more than something "holding it back"

Check it out, but I agree with the spun prop guess.

 

[TowRoper]

Re: Cant get boat upto speed?

still tied to the dock? droped anchor? spun prop! think we have a winer
couldnt resist good luck mate!

 

[arw2009]

Re: Cant get boat upto speed?

Thanks guys. I'll be sure to untie from the dock today and try again!
Really though thanks for the tips!

 

[TowRoper]

Re: Cant get boat upto speed?

just teasing a little cuz ive done it my self

 

[Bondo]

Re: Cant get boat upto speed?

Really though thanks for the tips!

Ayuh,... We'd love to Help ya, but You've gotta supply Useable Information....

It sounds like you need a Mechanic......

 

[dingdongs]

Re: Cant get boat upto speed?

remove cap from top of drive and have a nose to see if you have any teeth left on gears too!!!!!!!!!

 

[4.3 3rd time a charm]

Re: Cant get boat upto speed?

since you are a new boatowner- what they mean by spun prop incase you do not know, is the newer props have a hub kit that allows the prop to hit something and the hub sipns instead of breaking your prop shaft. just check to see if you have a hubbed prop, if you do just replace the inner hub if not then you may be in big trouble.
also if it is not instaaledproperly this result of can aslo happen.
just suggestions -been there done that.

 

[snoski]

Re: Cant get boat upto speed?

Is there a burnt rubber smell?