Bav 30 gearbox

[Celtic Dream]

I have recently purchased the boat and the gear control lever is very ‘notchy’ and not precise when selecting either forward or astern. I have replaced the lever and the cable runs smoothly. I can only conclude now that it is the gearbox itself, unfortunately. Any suggestions please ?.
The engine is the D1-20 Volvo.

[Yngmar]

Easy to test - detach the cable from the gearbox and switch gears by hand.

Often it's just a misalignment where the center of the gear lever upstairs doesn't match with the center on the gearbox. The cable has an adjustment on both ends for that.

[Celtic Dream]

Thanks, I will try doing that again. Paul

[catlotion]

I have the same issue.  I disconnected cable at engine and both the gear change lever on gearbox and throttle lever are smooth.  Only when connected back up is it notchy.  Obviously indicating a cable problem but they seem fine.  Squirted some teflon lubricant down them and it's a bit better but still not right.

Can't seem to find any good adjustment information...  How do you centre cables at both ends?

[Yngmar]

You take the cable off the gearbox and center the gearbox lever. Center the cockpit lever (it has a spring-loaded ball that clicks into place in three positions - neutral, forward, reverse). Now attach the cable to the gearbox without pushing or pulling it, adjusting the nut so that the cable matches up exactly with the neutral position.

[catlotion]

That's great, thanks.  Will give it a go and report back.