As I mentioned in my post, i hadn't had a chance to do any investigating and my mind was down the wrong rabbit hole. (problem was hydraulic and not electrical but I couldn't hear the pump running) Opened engine hatch and actuated tabs and hydraulic oil spraying from tubing. Small crack right...
I will dissent here. There are significant differences between brands even though they can be class grouped together. We haven't mentioned Formula or Cobalt here for example. Anyway just to give some credibility, my brother and I flip approx 15 boats per year. I've seen them all. I kept my...
These are factory installed. The wire between the breaker and the pump control module are buried in the hull. I can't see why there would be an additional fuse in that line but wasn't sure. Also, these are double acting hydraulic actuators.
Trim tabs worked fine during my final systems check immediately before launching boat. First time I tried to use them, (which may have been a week or two later) they had no movement and no change on indicators. I don't hear the hydraulic pump running, but I can't confirm that yet. Haven't had...
This is the newest boat I've ever owned and according to the way I'm reading the factory service manual, there are only 3 water drain locations? Is this correct? Scares me to think about not draining the block and manifolds come winter time.
2011 Mercruiser 350 Mag EC
Serial 1A619387
Wouldn't a hydro-lock stop it dead? I have had this happen in the past. Actually from the afore-mentioned backfire due to bad ignition module. Also have seen this on several other occasions with other boats.
Is it a possible "almost" hydro-lock? like a teaspoon more than full compression...
I'll have to look more closely at carb. Memory recalls TB unit on engine.
Yes. I would call it a back fire, but was very minor vs the backfire when ignition module went bad a few years ago. I don't really think there are levels of back fire?
Sure as hell hope it's not a bent valve. I...
Of course has to happen on Memorial Day weekend and with brand new non-boaters on board....
2000 Rinker FV 270
5.7 throttle body
0L636997
Bravo 3
Heater hose punctured spraying water in engine bay. Lucky I caught it within a few minutes, dropped anchor and fixed. Easy.
I think some of the...
I'm thinking motor itself. I am planning a disassembly of the valve body for fun. I suppose it could be a problem in there like a bad check or something. If the pump was worn or even leaking internally/cavitating, the motor should have still had much higher RPM.
SOLVED!
I had to take a guess because boat was in storage. I guessed rams, but I was wrong. So after installing $1200 worth of Mercury trim cylinders, I ordered and installed a new pump assembly.
Bingo.
Could immediately tell the difference in motor speed just by sound. Trim works smoothly in...
UPDATE: Went out Saturday, everything seemed normal. Got out to open water, advanced throttle and everything normal. i even took a photo of my tach and speedo to show the iboats community. 4000 rpm. 30 MPH. Clockwork.
About 10 seconds after this photo was taken, my tach jumped to 4600...
Engine really sounded like it was revving that high. To the point I didn't want to leave it there long for further evaluation. I'll get a test tach on there soon.
Trim sender has been off a bit, but I don't rely on it. And I was trimmed all the way down/in. Never even touched it. Had I...
I have been using Lucas 75-90 full synthetic gear oil for many years. Change it every year. Never had a problem in any of my boats. This lower is on it's 3rd year. Was a brand new factory Mercruiser unit.
