DP290 won't come out of gear (reverse)

[alt]

More woes with my friends project. Before launching, we tested in / out of gear no problem.

Launched yesterday. Sealine 305 Statesman with 2 x ADAQ41 connected to DP290 (Well, could be an earlier model, but duo prop).

She went into forward / neutral fine. Put her into reverse, and would not come out.

Disconnected linkages etc. - I went diving. At the gear selector, she is stuck in reverse, but with some wiggling will go half way between reverse-neutral, but reverse gear still engaged.

We're going to take her out this evening and remove the gear selector cover to see if anything amiss, before taking more apart.

My theory is that the cones are stuck together. This happened the other out-drive out of the water, but managed to free it with wiggling and covering in gear-oil. We removed the out-drive for this.

Any other theories? The boat had been left abandoned for 8 years. We don't know the state of the cones etc.

Happy for any input, conspiracy theory or not! Either way, I suspect new cones will be needed all-round, as when I click into gear, nothing. Then, when I rev up.... clunk! Symptom of worn cones, I think?

 

[oldgit]

Does not shaft have to be rotating to engage , disengage gear.
From memory you can rotate prop by hand to achieve this ?
In normal circumstances engine will be turning primary / jackshaft and therefore countershaft.

Apparently not..

https://www.youtube.com/watch?v=LK4dk5bQVO4

 

[alt]

Does not shaft have to be rotating to engage , disengage gear.
From memory you can rotate prop by hand to achieve this ?
In normal circumstances engine will be turning primary / jackshaft and therefore countershaft.

We thought it may have been just 'stuck' and need a nudge, so we cranked the engine by hand and could see the props turning.... however I could still not dis-engage to neutral while my friend was doing this.

 

[alt]

Anyone?? Thought we'd have a few opinions on this one!

 

[scottie]

Wear in the selected or cone V the cone runs in a spiral on the shaft which encourages the cone to engage the selector holds it in neutral

 

[alt]

Wear in the selected or cone V the cone runs in a spiral on the shaft which encourages the cone to engage the selector holds it in neutral

Worn cone is my theory also!

 

[BruceK]

it's irrelevant. It has to come apart anyway. Get the micro-fiche and count the parts. For every part put a £50 pound note in the pile to cover labour. Look for the most expensive part. Double it, put that amount in the pile. If the pile tallies you're in with a chance of a fix. Works for me

 

[TRH]

Just a thought are you having the same problem on flybridge and below

 

[alt]

So, confirmed the cone was stuck (hence stuck in reverse).

Removed the gear selector cover, stuck in a piece of timber and gave it a good whack (I'm not making this up!). Stuck it all back together and it's working fine.

I'm not a gambling person, but 50 quid says this is not the end of the woes....!

 

[oldgit]

I'm not a gambling person, but 50 quid says this is not the end of the woes....!

You might want to add a few noughts to that number

 

[scottie]

So, confirmed the cone was stuck (hence stuck in reverse).

Removed the gear selector cover, stuck in a piece of timber and gave it a good whack (I'm not making this up!). Stuck it all back together and it's working fine.

I'm not a gambling person, but 50 quid says this is not the end of the woes....!

Make sure the cable is adjusted properly

 

[alt]

Make sure the cable is adjusted properly

We have adjusted at the out-drive. When the throttle sits in neutral, we adjusted at the out-drive so that it sits in nicely that the selector is in neutral.

What is compounding the problem is that she's dual-helm, so there is the usual mechanism in place for this. I suspect there is adjustment to be made here. I'm not familiar with mucking-about with this mechanism, so i'll leave it to my friend to mess with.

 

[scottie]

Dont mess with it or let anyone else mess with it
Set it up in neutral and balance out any free play
If it’s a Morse DS unit it will have holes that you can put 1/4 or 5/16 bolts in that lock it in neutral TP set it up
If you get it wrong you will end up with the likelyhood of expense
Take the time and do it properly.

 

[alt]

Dont mess with it or let anyone else mess with it
Set it up in neutral and balance out any free play
If it’s a Morse DS unit it will have holes that you can put 1/4 or 5/16 bolts in that lock it in neutral TP set it up
If you get it wrong you will end up with the likelyhood of expense
Take the time and do it properly.

Not a morse control, it's the old-school Volvo Penta controls. White base, black handle.

I've spent enough time working on this project, i'll leave this aspect to them