Shakedown cruise result - not ready yet |
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Dreaming
Platinum Member Joined: May-21-2010 Location: Tacoma, WA Status: Offline Points: 1870 |
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Posted: August-07-2016 at 6:39pm |
So yesterday was the big day... first time to have my boat in the water, hoping to get a good read on any little things that I needed to clean up to have this thing ready for family. The good news is that the boat floats and starts.
the rest... well, it needs some work still - at the ramp, the boat started, not too tricky, but it felt like it took a good while to warm up enough to get it in gear without stalling... maybe chalk this up to user inexperience. - once running, it bogged severely when moving from idle to anything above that. Once under load(in gear) the motor back fired a few times(thru the carb) and smelled strongly like unburned fuel. once home, I discovered the carb idle screw on the observer side was out approx 8 turns, where the drivers side was about 2.5. the idle smoothed out a good bit once I put the vacuum gauge on the motor and adjusted the screws for highest vacuum. I end up with just over 14 inches of mercury as my end result. hopefully this will help the bogging and flooding and backfiring issue on the water. - I had a fairly good vibration when the motor was under load, I hadn't felt it in the driveway on the hose, so this one was a bit of a surprise. Once home again, I took a temp reading on all of the exhaust riser ports, and had 220 degrees or so on the front 2 cyls on each side, and about 200 on each of the rear cyls on the left, but only about 120 on the rear 2 cyls on the right. Seems like the cylinders were too cold to have been firing. I had new Autolite 764's in the glove box, so to eliminate a dead spark plug possibility, I replaced them with the new set. I still have a strong vibration at 1800 RPM on the hose,,, not sure what to make of that, I wonder if this has something to do with my issues under load? what would cause this vibration? |
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