Bayliner 2858 Flybridge

[Stephen Tarry]

Hi Guys
Im new to the site and would appreciate some help and advice, Im new to boating as well so I really am in the dark here?

I have a Bayliner 2858 with a 6.2 (195bhp) general motors diesel through a bravo 3 leg to a stainless duo prop. The engine runs really nice but when I open her up she wont get on the plane? she plods along at about 8knts! I have taken a friend with 16 years experience and he is baffled as well.

any help would be appreciated.


Steve

 

[jestor68]

Re: Bayliner 2858 Flybridge

That's a lotta boat(dry wt 7610lbs) for a single small diesel to push.

The motor should be able to wind up to 3600 rpm at WOT. Is it getting anywhere near that?

What year is the boat/engine?

How long have you had this boat? Has it ever performed properly?

Assuming 1.5 or 1.65(diesel only) gear ratios, the Mercury prop selector recommends a 19 pitch prop set that it says should do about 34 mph at 3500 rpm.

 

[steelespike]

Re: Bayliner 2858 Flybridge

See if the gear ratio is stamped on the outdrive. Get us the rpm,and the prop size.
prop numbers are probably under the prop nut.

 

[Stephen Tarry]

Re: Bayliner 2858 Flybridge

I will try to get the info, asap. The boat is new to me, but the previous owner has told me that the prop is a 28" pitch stainless duo prop. But that there was no marking on the leg case to indicate the current gearing. I appreciate the help guys looking like a gearbox issue at moment.

 

[steelespike]

Re: Bayliner 2858 Flybridge

Based On jestor's info 28" sounds like way way too high.Is that 28 perhaps a prop set number?