Outdrive Grief 290DP

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oldgit

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Chum has lost drive on one of his 290 DP outdrives.
CR has quoted him £1k + for the S/H bits he thinks he needs.
Any other sources of second hand bits ........suspect he will travel anywhere in UK.
 
There's a splined link in those thats designed to shear instead of wrecking the drive if you pick up something that jams the props, only 50 squid and easy to change.
 
oldgit said:
Chum has lost drive on one of his 290 DP outdrives.
CR has quoted him £1k + for the S/H bits he thinks he needs.
Any other sources of second hand bits ........suspect he will travel anywhere in UK.
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How can there be any certainty on the parts required ?
There is presumably more to the story than 'lost drive'. eg. has some underwater object been struck or has it just stopped going into gear ? Sudden change or gradual deterioration? If it goes into gear but seem like something is slipping then could it be prop bush failure?

If it is some failure inside the leg has the option of taking the drive to someone like VolvoPaul to investigate and make good been considered ?
 
Sudden loss of drive, both ahead and astern, removing leg and investigating on Sunday.
Fingers crossed its something simple and a easy to source part.
 
oldgit said:
Sudden loss of drive, both ahead and astern, removing leg and investigating on Sunday.
Fingers crossed its something simple and a easy to source part.
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Have you already ruled out Rubber hub in the prop having failed? Mark the prop outer and the shaft with paint,put it in drive, and see if the marks have shifted relative to each other.
 
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julians said:
Have you already ruled out Rubber hub in the prop having failed? Mark the prop outer and the shaft with paint,put it in drive, and see if the marks have shifted relative to each other.
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Think it’s a dual prop 290 perhaps.
Just being fussy perhaps, please excuse or ignore me, haha.
Regardless, most sacrificial prop hubs like the one you are perhaps referring to, usually allow slow speed function to get out of trouble perhaps. These usually have a slightly different means of protection I’m sure.
I’d say it’s more likely to be a cone clutch or gear linkage/cable issue.
 
oldgit said:
Sudden loss of drive, both ahead and astern, removing leg and investigating on Sunday.
Fingers crossed its something simple and an easy to source part.
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Have you tried looking to see if the upper cable is working ok at the assembly down the engine bay ? Then the actuating function from there to the outdrive ? What about the inner assembly of the remote control box itself ? Is the neutral button stuck in or anything similar up there ?
Something like the above or the cone clutch slipping from wear or very commonly water ingress/wrong oil, would be the odds on favourites. Best of luck.
 
julians said:
Have you already ruled out Rubber hub in the prop having failed? Mark the prop outer and the shaft with paint,put it in drive, and see if the marks have shifted relative to each other.
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Doubt a hub, that little problem already surfaced on this leg only a couple of months previously , fixed with a new prop.
Fortunately he has access to crane just across the river and can get the boat lifted quickly.
 
LBRodders said:
Shift cable? [although was on Mercruiser B3]

Happened to us, although when it failed we were stuck in astern - happy days!
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Exactly that happened to a friends boat with Mercruiser diesels A ridiculously tiny pinch bolt securing the cable end had let go.
Luckily I found the pinch bolt under the engine.
But not an arrangement I recognise as being used in conjunction with Volvo Penta engines.
 
scottie said:
Is there nor a shear point in the vertical shaft at the top of the lower unit
might even be in the sleeve
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yes there is a sleeve designed as weak link which would loose drive both directions

easy to check when out of water just drop lower gear unit
 
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