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#1
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Paragon Gearbox.
Hi
I'm about to settle on a slightly larger boat - moving from a 18ft clinker fishing boat to about 23 ft. During test drive ( what IS the right word for this ..) today my only issue was with the gearbox. forward and reverse are OK, but in neutral it is still turning the prop, although not at engine speed. The owner tells me it's a Paragon direct drive. Any resources for manuals or diagrams of this sort of box? Is this an adjustment, a maintenance, or a design issue? The present owner just stops the engine as he comes into berth; I can see situations where this is not ideal so I'd like to fix it. Otherwise a nice boat for what I want - even if it is 1959 vintage ..... And before you ask, I do know what I'm getting myself into. I'm swapping the problems of one old wooden boat for the problems of another slightly larger old wooden boat. So I'll have slightly more expensive problems.... Any pointers most appreciative. David |
#2
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Paragon Gearbox.
An engine with effective neutral will windmill the prop when under
way. It is a non-intuitive fact (for aircraft at least) that a stopped prop is less draggy than a windmilling prop. Some boat transmissions can be locked. Brian Whatcott Altus OK On Sat, 18 Oct 2003 22:29:25 +1000, "David Flew" wrote: Hi I'm about to settle on a slightly larger boat - moving from a 18ft clinker fishing boat to about 23 ft. During test drive ( what IS the right word for this ..) today my only issue was with the gearbox. forward and reverse are OK, but in neutral it is still turning the prop, although not at engine speed. The owner tells me it's a Paragon direct drive. Any resources for manuals or diagrams of this sort of box? Is this an adjustment, a maintenance, or a design issue? The present owner just stops the engine as he comes into berth; I can see situations where this is not ideal so I'd like to fix it. Otherwise a nice boat for what I want - even if it is 1959 vintage ..... And before you ask, I do know what I'm getting myself into. I'm swapping the problems of one old wooden boat for the problems of another slightly larger old wooden boat. So I'll have slightly more expensive problems.... Any pointers most appreciative. David |
#3
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Paragon Gearbox.
I've had similar problem with a twin engine '59 Chris Craft with Paragon
gears. I believe that a true (non turning) neutral can be achieved by adjusting the bands, but I was never able to to keep the prop shaft from creaping while dead in the water. I know that this creaping doesn't have much torque because if I tighten the shaft packing (more than it should be) I could stop the shaft, however if I rev'ed the engine up to about 1k the shaft would start to turn. I finally just gave up and lived with it. If swimmers were in the water, I killed the engine. As far as manouvering into a dock, I would leave the engine running until I'm in postion to get the lines over and then kill it so the boat doesn't power against your efforts. Sorry I can't offer more encouragement. -- My opinion and experience. FWIW Steve s/v Good Intentions |
#4
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Paragon Gearbox.
fishing boat to about 23 ft. During test drive ( what IS the right word for this ..) sea trials |
#5
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Paragon Gearbox.
Actually to resolve his question/problem, Brian should be doing Dock Trials
.. Followed by Sea Trials. Steve s/v Good Intentions |
#6
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Paragon Gearbox.
I've decided that it was actually spouse trials - and since she nodded, it's
passed. Bank trials are next. Having passed the spouse trial I've decided I can live with the gearbox issue for a while. David "Steve" wrote in message ... Actually to resolve his question/problem, Brian should be doing Dock Trials . Followed by Sea Trials. Steve s/v Good Intentions |
#7
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Paragon Gearbox.
Good for you Brian.
You might find an experienced 'ole-time' marine mechanic who can adjust the clutch bands for you.. Don't expect the current gang to be much help. They'll have a good laugh at the shop after trying to sell you a new engine. Steve s/v Good Intentions |
#8
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Paragon Gearbox.
Steve
I'm David - and I'm after help in dealing with this myself. Where my "new" boat ( and for that matter my "old" boat)is moored "modern"boats are anything after about 1970. I'm a member of a fishing club with about 70 members, I think 3 now have plastic boats, 3 have "sticks", and the rest are either carvel or clinker ( "lapstrake") ranging from about 15 to 25 ft. "New" is not part of our vocabulary. So does anyone have literature, or even a good description of what I'm dealing with here. Or a suggestion as to where others infilcted with such an ancient beast might lurk ....... Regards David "Steve" wrote in message ... Good for you Brian. You might find an experienced 'ole-time' marine mechanic who can adjust the clutch bands for you.. Don't expect the current gang to be much help. They'll have a good laugh at the shop after trying to sell you a new engine. Steve s/v Good Intentions |
#9
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Paragon Gearbox.
I have one of these transmissions. Yes, in neutral the prop will
sometimes turn very slowly while not underway. The clutch plates in the transmission will tend to "drag" a little. This is normal and does not cause a problem. Underway (sailboat with engine off) the prop freewheels without harm to the transmission. At least no harm for the last 40 years or so. Email me if you want a copy of the manual. It may not be the same model as yours but the principles should be the same for any Paragon. Harry "David Flew" wrote in message ... Steve I'm David - and I'm after help in dealing with this myself. Where my "new" boat ( and for that matter my "old" boat)is moored "modern"boats are anything after about 1970. I'm a member of a fishing club with about 70 members, I think 3 now have plastic boats, 3 have "sticks", and the rest are either carvel or clinker ( "lapstrake") ranging from about 15 to 25 ft. "New" is not part of our vocabulary. So does anyone have literature, or even a good description of what I'm dealing with here. Or a suggestion as to where others infilcted with such an ancient beast might lurk ....... Regards David "Steve" wrote in message ... Good for you Brian. You might find an experienced 'ole-time' marine mechanic who can adjust the clutch bands for you.. Don't expect the current gang to be much help. They'll have a good laugh at the shop after trying to sell you a new engine. Steve s/v Good Intentions |
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