Hey all, new to this forum.
Just bought a used boat about a month ago and I knew it needed some tlc.
Changed the impeller and that solved my over heat alarm
New prop as the old ones were suspect, seems like the prop shaft is sligtly bent, but everything shifts quiet and flawless. No shake or cavitation at wot
Lower unit holds pressure and has new gear lube.
New fuel pressure reg.
Tore open the low pressure fuel pump and looks new.
The vst tank was pretty clean, tore that open and cleaned the hp fuel pump screen. And ultrasonic cleaned all the parts.
Spark plugs look clean.
Compression is about 95 on all 3 cyl
Checked fuel pressure - stays around 40 psi at rail
The boat really runs and drive pretty much without flaw, but issue I have is loss of power wot. If it is just me on the boat, I can get it to slowly build rpm from 4200 slowly build to 6000 and get 20+mph. If weight gets shifted to the back of the boat it will bog down and lose power. Power loss also occurs on turns at wot.
Originally thought it was running in limp mode, then got it to get on plane and moved my train of thought to fuel issue. My concerns with fuel is that it runs without hiccup, except bogs under load, esp when weight is at the Stearn.
Any ideas would be awesome. I'm to the point where I probably have to show a mechanic, because I'm at wits end
Just bought a used boat about a month ago and I knew it needed some tlc.
Changed the impeller and that solved my over heat alarm
New prop as the old ones were suspect, seems like the prop shaft is sligtly bent, but everything shifts quiet and flawless. No shake or cavitation at wot
Lower unit holds pressure and has new gear lube.
New fuel pressure reg.
Tore open the low pressure fuel pump and looks new.
The vst tank was pretty clean, tore that open and cleaned the hp fuel pump screen. And ultrasonic cleaned all the parts.
Spark plugs look clean.
Compression is about 95 on all 3 cyl
Checked fuel pressure - stays around 40 psi at rail
The boat really runs and drive pretty much without flaw, but issue I have is loss of power wot. If it is just me on the boat, I can get it to slowly build rpm from 4200 slowly build to 6000 and get 20+mph. If weight gets shifted to the back of the boat it will bog down and lose power. Power loss also occurs on turns at wot.
Originally thought it was running in limp mode, then got it to get on plane and moved my train of thought to fuel issue. My concerns with fuel is that it runs without hiccup, except bogs under load, esp when weight is at the Stearn.
Any ideas would be awesome. I'm to the point where I probably have to show a mechanic, because I'm at wits end
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