Tony-B...
Posted: Sat Jul 18, 2020 6:58pm
Post Subject:
propulsion
Best of luck. If this is a narrow boat are you aware they usually have weed hatch at the stern that allows you to get at the prop. You indicate that you have some sort of drive in ahead AND astern so that points to a fouled prop in the first instance. Any gearbox fault is likely give you one good gear unless its low oil in a hydraulic box. There is usually something called a drive plate between the engine flywheel and gearbox. When (not if) you tend to get no drive in any gear plus a horrible clattering noise for a while before it totally fails. If it seems to be stuck in just one gear it could be a gear cable fault but not if you still have a little ahead, astern and a neutral. Find the lever on the gearbox that the cable is attached to, operate the control lever and make sure the lever on the box goes to the ahead, astern and return to neutral.