Hello, I am having slight (10%) power loss at WOT and hoping for some tips to restore it.
I have a 1997 Maxum 23ft fiberglass powerboat with a Mercruiser 5.7L V8 Alpha (sterndrive) with Thunderbolt ignition (carb) with over 1000hours.
I have had the boat for 4 seasons and the engine has always...
Hello, we have a 1999 Maxum with Mercruiser 5.7 (with carb) and Alpha one Gen II that developed a new stalling issue over the past few weeks. I appears to be increasing in frequency as in now at 4+ stalls per trip.
The issue occurs after running the boat for 15+ minutes at higher RPMs, then when...
This year I changed the propeller and hub on my 1997 Maxum 2300 Powerboat (Merc 5.7L Alpha 1 Gen 2) and now I have a 10% decrease in top speed at WOT.
I understand that the different diameter and pitch of propellers can change top speed and acceleration, etc, but my problem is that I replaced my...
My buddy bought a 23ft Maxum 2300sc fiberglass powerboat that is having problems with the cooling system. The engine and sterndrive are the Mercruiser 7.4 V8 MPI with Bravo 3 (twin prop) all from the year 2000. This model has the freshwater cooling system (heat exhanger on top othe engine) and...
Hello all,
I have a 25ft 1991 Bayliner 2556 Ciera Flybrige with small block v8 Mercruiser 5.7L engine (with 1150 hours) and Alpha One Gen II outdrive. The boat is heavy ~6000lbs, plus 500-700lbs of fuel and usually between 6-10 passengers (girls).
The current prop is a 3 blade mercury aluminum...
Hey All,
I have a 2 year old Jabsco Twist n Lock compact marine toilet.
When I flush it by pumping the handle up and down it exhausts all my waste just fine, but when I flick the black switch to bring in outside water to rinse the bowl, the vaccum is lost when I pump, and no rinse water comes...
Re: Engine Knock or Clanking in Mercruiser V8 5.7L Valve train .. UPDATE
Re: Engine Knock or Clanking in Mercruiser V8 5.7L Valve train .. UPDATE
After many of the recent suggestions led back to the exhaust manifold gasket being the source of the noise. I decided put my lifter/rod theory on...
I have a 1991 Bayliner Ciera with small block v8 Mercruiser 5.7L engine (with 1050 hours) and Alpha One Gen II outdrive with freshwater cooling (heat exchanger).
During a rare wintertime boat outing I was making my return as ran the boat at normal operating temp @4300rpm for 20 minutes back...
I have a 1991 Bayliner Ciera with small block v8 Mercruiser engine (with 950 hours) and Alpha One Gen II outdrive with freshwater cooling (heat exchanger). During a recent fishing trip in Puget Sound I ran the boat at normal operating temp @4300rpm for 20 minutes to the site, then shut off the...
