DannyC Posted November 3, 2019 Report Share Posted November 3, 2019 HI there, having some engine issues. Engine was ok this morning and then we stopped to fill up with water. Upon restarting, there was a loud 'click' in gear whenever the engine turned over, getting faster with higher revs. The click eventually stopped but the engine continued to be very loud and with a loud rattle in gear. At the same time the boat seemed to be barely moving and higher revs didn't seem to get it to speed up. We moored and took a look inside. The loud rattle seems to come from around the gearbox when in gear. We already checked oil levels and the engine was serviced only a couple months ago. Engine is a Barrus shire. Any ideas? Link to comment Share on other sites More sharing options...
DannyC Posted November 3, 2019 Author Report Share Posted November 3, 2019 Here is a video. It is hard to make out but the gear box (i think!) appears to be making a hollow rattling sound. engine video.mp4 Link to comment Share on other sites More sharing options...
WotEver Posted November 3, 2019 Report Share Posted November 3, 2019 Drive plate? Someone with better experience than me will be along shortly. Link to comment Share on other sites More sharing options...
Tony Brooks Posted November 3, 2019 Report Share Posted November 3, 2019 Time to check the weed hatch and make sure nothing is around the prop. A fouled prop will allow things like earphone buds to bang on the hull as the prop rotates and more debris will load the engine and slow the boat. If the prop is clear try again, it might just be leaves packing around the prop that float off when you take it out of gear. If the prop is definitely clear nothing hanging down where you can't see it) then come back and tell us. Also say if this happens in and out of gear or just in gear. 1 Link to comment Share on other sites More sharing options...
Alan de Enfield Posted November 3, 2019 Report Share Posted November 3, 2019 Cannot help with the gear box noise - only you know what it sounds like 'normally'. If you think there is a 'rattle' get a long screwdriver (or mooring pin) and put the handle end into your ear (pressing against your ear bones). TAKING CARE (as you need the engine running and the boat in gear) 'Dab' the other end of the screwdriver (or mooring pin) onto the gearbox, you will definitely hear if the rattle is in there as the vibration will travel up into your ear. If not try the same 'dabbing' around the engine and see if it is (maybe) a broken piston etc etc etc. Link to comment Share on other sites More sharing options...
bizzard Posted November 3, 2019 Report Share Posted November 3, 2019 Engineers stethescopes are worth having, cheap enough. Same as a doctors but they have a little sound box and a pointed probe to amplify noises instead, and safer as you can face the job properly and listen. Link to comment Share on other sites More sharing options...
David Mack Posted November 3, 2019 Report Share Posted November 3, 2019 From the video nothing sounds out of the ordinary. The propshaft is still turning, so that eliminates any catastrophic gearbox or driveplate failure. A lack of acceleration would suggest you have something on the prop, and that includes a loose, possibly metallic, item which is hitting the uxter plate as it rotates. I had just this recently when I caught a shoulder bag - the metal rings on the strap were 'tinking' against the hull. Time to open the weedhatch. Link to comment Share on other sites More sharing options...
DannyC Posted November 3, 2019 Author Report Share Posted November 3, 2019 Thanks everyone. I will check it and let you know how I get on! Link to comment Share on other sites More sharing options...
DannyC Posted November 7, 2019 Author Report Share Posted November 7, 2019 It was something wrapped around the propeller! Thanks for your help. 3 Link to comment Share on other sites More sharing options...
WotEver Posted November 7, 2019 Report Share Posted November 7, 2019 2 hours ago, DannyC said: It was something wrapped around the propeller! Thanks for your help. Well done Tony B Link to comment Share on other sites More sharing options...
Tony Brooks Posted November 7, 2019 Report Share Posted November 7, 2019 Thanks for coming back and telling us Danny, so many don't bother. 1 minute ago, WotEver said: Well done Tony B Without in or out of gear info it was the most likely thing to fit the symptoms. A dive plate failing would probably go quiet in gear with revs on. 1 Link to comment Share on other sites More sharing options...
Victor Vectis Posted November 7, 2019 Report Share Posted November 7, 2019 4 hours ago, DannyC said: It was something wrapped around the propeller! Thanks for your help. Was it one of those pipe fenders dangling on a rope that some people insist on leaving down when cruising? 1 1 Link to comment Share on other sites More sharing options...
davem399 Posted November 7, 2019 Report Share Posted November 7, 2019 2 hours ago, Victor Vectis said: Was it one of those pipe fenders dangling on a rope that some people insist on leaving down when cruising? Exactly what we picked up in Braunston Tunnel last week. Fortunately, we were just 300 metres from the exit and the following boat dragged us out. Didn't half make a racket and lots of vibration! Link to comment Share on other sites More sharing options...
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