I have replaced my 3 bladed fixed prop with a 2 Bladed Bruntons Varifold Folding Prop. And my old grease filled stuffing box stern gland with a PSS Shaft Seal..
When the engine is in neutral (I guess because the PSS Shaft Seal is not as rigid as the old grease filled stuffing box) the prop shaft sounds like a bucket full if spanners as the prop shaft knocks on to the inside of the stern tube .. It stops at around 1000 revs the gets increasingly worse as you open the throttle.
I dont know if the problem lies with the Shaft Seal or the Prop, or a combination of the two.
We have a new cutlass bearing and checked the engine alignment and all the other obvious causes. Has anyone else experiences similar problems.
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2 Bladed Folding Props & PSS Dripless Shaft Seal
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