Hi Danny, It's possible the choke was a cause, as well as low RPMs? Which model boat do you have and which engine; Atomic 4? What was the water temperature? What was the engine temperature when it stalled? Which prop do you have; Folding?
You can reduce some of this stress by: Test thrust in gear at the dock or mooring, check vibration in neutral low to high RPMs Pick slack water for departure Always have an anchor rigged and ready to use Use your headsail to sail, Roller furler A folding prop will close if 4 knots of current passes over it. It's very hard to keep them open to brake. Maybe the current was fighting you? If the prop has a lot of play in the hinge, it can cock funny and vibrate that way. You can check the allignment at the coupling. Chuck Resolute 1990 C&C 34R Broad Creek, Magothy River, Md ----- Original Message ----- From: "CNC boat owners, cnc-list" <cnc-list@cnc-list.com> To: bstrat...@falconnect.com, "CNC boat owners, cnc-list" <cnc-list@cnc-list.com> Sent: Wednesday, June 18, 2014 9:06:04 AM Subject: Stus-List Boatyard repair issues Hi Guys, Okay so, I was finally going to head out for a sea trial. I had the engine completely warmed up, topped off with gas, water and the like. Just before I was going to pull away from the dock and move out to the mooring. She stalled, I always need to use choke to start it back up but, she starts right back up. We shove of, I put her in gear and she's vibrating like crazy. The kid on the dock could actually see the rig vibrating... Now, I'm in the 4 knot current of the Westport River! Awesome! I figured the prop didn't open. So, I pop her out of forward and into reverse. Sometimes, this will open the folding prop easier. Same vibration... Well I have to do something because I'm out there in the mooring field heading for the channel. I put her back in forward and she stalls...CRAP! I have to come around the helm to the control panel on the locker bulkhead to start her again... and I need choke to do this. She starts right up. I get back to the helm, put her in gear and she starts to move but the engine just dogs... almost to a stall. I put her back in neutral and she comes back up in revs. This just goes on and on... I keep putting her in gear to keep her moving enough to keep control. We call the marina for some help, as we're on the phone, the harbormaster is coming by and we wave him over so he comes aside. Just as that is happening one of the yard guys is coming by in the work skiff, We wave him over and he come and tows us to a free mooring. As were being towed, I keep her running and flip open the locker to hear the engine better and I noticed that in my haste to restart the last time, I never returned the choke to running position. Now, I had the yard replace my broken strut over the winter and I know they never did a sea trial. So, I'm thinking they didn't align the engine or, did not align the engine properly and that is my vibration problem. would having the choke fully engaged have been the issue with the engine bogging down when I did put her in gear? I'm thinking not but...you never know. Now, the Saturday before, while at the mooring and letting the engine run, I did slip her into gear at idle in both reverse and forward and I did not notice that vibration but, I was not giving her any revs either. This past Saturday I spent some time tinkering with the engine and swapped out the carburetor for a freshly rebuilt on I had as a spare and I was able to get her idling strong at 700 RPMs and up and down through some revs with out the fear of stalling. I'm very about that! So, with the engine idling at 700 RPMs (I'm so delighted by that..LOL) I slipped her in grear with the admiral at the helm and I went below with a flashlight. I could actually see the stuffing box moving with the shaft. No wonder it vibrates. I got in the water and everything looked fine at the prop. Nothing fouling it and the blades moved freely. I have to say though, I'm considering Indigo's 3-blade prop for next year. I think I can afford the drag. One, the weighted blades on the prop I have don't stay closed anyway unless the prop is in the right position, I'm relatively sure of that, and two, I'm not racing anyone. But I'll see how the season goes after I get this vibration thing sorted out. I have been pretty happy with this prop so far. Anyway, as always I greatly appreciate any insights, comments and suggestions. _______________________________________________ This List is provided by the C&C Photo Album Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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