Mercruiser Bravo I problems!!!!!!!!!!!

[Heathery]

Re: Mercruiser Bravo I problems!!!!!!!!!!!

UPDATE:

Well the marina called and said they made a few adjustments (whatever that means, I'll get more details tomorrow) and they replaced a fitting between the engine coupling and the outdrive that had a "better fit". The rpm reving is fixed and they believe it's now time to find the right prop. They did make sure the prop was sitting correctly and there wasn't any venting (thanks for the suggestion!) On a sea trial the guy running the boat said he wasn't happy about having to go full throttle to get up on plane initially and wanted to try some other things. In my expirience I have always had to go tabs, trim down and full throttle then back off with a single engine, am I wrong about this? I just want to make sure I'm not wrong before I head down there tomorrow.

 

[QC]

Re: Mercruiser Bravo I problems!!!!!!!!!!!

In my expirience I have always had to go tabs, trim down and full throttle then back off with a single engine, am I wrong about this? I just want to make sure I'm not wrong before I head down there tomorrow.

If you think about the 100 RPM thing, then you really don't . . . but what you describe is probably the most common way people get on plane, especially with larger boats. Thanks for the update. Good luck!

 

[Heathery]

Re: Mercruiser Bravo I problems!!!!!!!!!!!

Just an update, they replaced the upper unit with a bravo II upper saying it had a heavier gear set. Still not working right. Replaced the lower unit with a remanufactuered one and we are good to go. An explaination I was given is that for 2 years mercruiser pressed the shaft to the gears rather than is being a solid piece and that could have been the problem. I have no idea but the boat is running like a champ (so far) we haven't named her yet but I think we will be naming her "It's Aboat Time!"

Thanks all for your help and advise! I will certainly be back again!

 

[paulrfrancisco]

Re: Mercruiser Bravo I problems!!!!!!!!!!!

So you had shaft slipping under high load inside the gear inside the drive? Why wern't there telltale signs of metal filings in the drive oil... ?

 

[Heathery]

Re: Mercruiser Bravo I problems!!!!!!!!!!!

So you had shaft slipping under high load inside the gear inside the drive? Why wern't there telltale signs of metal filings in the drive oil... ?

That's a very good question and I will have to pose that to them! Thanks!!