VADROUILLE
New member
Just moored up in brighton and when i was just putting the engine into gear in low revs a very large knocking sound was to be heard. An alarming one to say the least. Increase the revs and the knock goes away, (i motored in at 2500rpm for 6 miles with no noise or any reason to be alarmed).
I put the gearbox in gear manually and i can confirm that the knock is coming from the cutless bearing area.
The engine does vibrate a bit and you can see that in tick over (not in gear) that the shaft is vibrating. i have installed new bigger engine mounts to the engine so i dont think i can do much more with the little bit of vibration thats left.
I also have just been lifted into the water after a week of being out. it should be noted that this knocking sound was never present before i got lifted out and whilst i was out i done two things.
1, i painted all the stern gear (shaft, prop, bracket etc etc) with stern gear antifouling. never done it before, never really needed to. But just thought i would do it for a change. would the extra weight of the paint or something stupid like that cause this knock?
2, i fitted a rope cutter, the type that bolts directly onto the shaft like a clamp, think its called prop protector or something, they advertise in ym. I think it could be that, however i followed all the instructions when i fitted it.
would either of those two things make this knocking noise?
could the engine be misaligned?
I did check the cutless bearing, all the little channels were there for the water flow and it did not look to be worn in anyway.
it should also be noted that i still get the occasional problem with going into gear, sometime it wont go, however when i do it locally it goes in gear fine which leaves me to believe its the morse controls, cant be the cables as they are new.
If anybody can shed some light onto this matter i would appreciate it!
I put the gearbox in gear manually and i can confirm that the knock is coming from the cutless bearing area.
The engine does vibrate a bit and you can see that in tick over (not in gear) that the shaft is vibrating. i have installed new bigger engine mounts to the engine so i dont think i can do much more with the little bit of vibration thats left.
I also have just been lifted into the water after a week of being out. it should be noted that this knocking sound was never present before i got lifted out and whilst i was out i done two things.
1, i painted all the stern gear (shaft, prop, bracket etc etc) with stern gear antifouling. never done it before, never really needed to. But just thought i would do it for a change. would the extra weight of the paint or something stupid like that cause this knock?
2, i fitted a rope cutter, the type that bolts directly onto the shaft like a clamp, think its called prop protector or something, they advertise in ym. I think it could be that, however i followed all the instructions when i fitted it.
would either of those two things make this knocking noise?
could the engine be misaligned?
I did check the cutless bearing, all the little channels were there for the water flow and it did not look to be worn in anyway.
it should also be noted that i still get the occasional problem with going into gear, sometime it wont go, however when i do it locally it goes in gear fine which leaves me to believe its the morse controls, cant be the cables as they are new.
If anybody can shed some light onto this matter i would appreciate it!