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Old 06-08-2014, 11:45 AM   #41
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Originally Posted by rochepoint View Post
Sounds like it will fix a lot of issues for you. Which model of Aquadrive are they recommending for the twin Lehman 120's.
Thanks for the heads up on how to add the pics. Here's the drawing from Aquadrive. (hope it worked...lol)
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Old 06-28-2014, 06:46 PM   #42
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I know this is a bit late for this thread but there is a viable alternative to the Aquadrive.

Pythondrive The ideal flexible and vibration-free drive unit

I researched these systems a lot and chose the Python over the Aqua. For my small boat it was reasonably priced.

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Old 06-28-2014, 07:39 PM   #43
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Rick I'm curious what was the cost for your vessel?
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Old 06-28-2014, 08:36 PM   #44
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Rick I'm curious what was the cost for your vessel?
$945 Cdn Bill.

I've documented everything I've spent on our blog.

M/V She:Kon: She:Kon Spent to Date

Once the spreadsheet loads there are tabs at the bottom. Look in the 'Engineering' tab.
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Old 06-28-2014, 08:50 PM   #45
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I had a Aqua and know about the Python but haven't heard or have had experience w Python. I wouldn't buy either one w only 2 ears to mount to the thrust bearing mount. It's just too hard to align. Little or no control over pitch attitude. Buy one w 4 ears only. Just my suggestion though.
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Old 06-28-2014, 09:05 PM   #46
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The two eared versions work fine. I have a buddy who installed one in his boat a couple years ago. He was having problems with vibration and shaft alignment and that's all gone away.

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Old 06-28-2014, 09:10 PM   #47
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Thanks Rick also fine on your comments about the 2 ear system working okay for your buddy. I need to look I believe my Velvet drives have some kind of rubber shaft coupler system already.
Next time I visit the boat I'll check.
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Old 06-28-2014, 11:47 PM   #48
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$945 Cdn Bill.

I've documented everything I've spent on our blog.

M/V She:Kon: She:Kon Spent to Date

Once the spreadsheet loads there are tabs at the bottom. Look in the 'Engineering' tab.
Hard to know for sure what I'm comparing, but the Python drive sized for Delfin indicates quite a bit higher load capacity than the one recommended by Aqua Drive.

Where are these manufactured? Their web site is kind of hard to figure out.
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Old 06-29-2014, 02:45 AM   #49
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Where are these manufactured? Their web site is kind of hard to figure out.
Product of Dintra Transmissies, a Dutch company. Don't know for sure where they are produced.


Dintra: propulsion techniques for yachts and boats
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Old 06-30-2014, 06:53 PM   #50
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Product of Dintra Transmissies, a Dutch company. Don't know for sure where they are produced.


Dintra: propulsion techniques for yachts and boats
Looks virtually identical to the Aquadrive I just bought only a different color.
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Old 06-30-2014, 08:46 PM   #51
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The two eared versions work fine. I have a buddy who installed one in his boat a couple years ago. He was having problems with vibration and shaft alignment and that's all gone away.

What's that crazy plumbing all about in the fore left of the photo?
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Old 06-30-2014, 09:13 PM   #52
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What's that crazy plumbing all about in the fore left of the photo?
I once did a test in the Navy Clearance Diver school called 'The Plumbers Nightmare'. Kinda reminds me of that!
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Old 08-18-2014, 08:36 AM   #53
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Gentlemen

Here is mine and for the first 25 engine hours it worked very well. No noises, no vibrations, no shocks. Very smooth!
Yet, make sure that all washers are in place as recommended by the manufacture

Rgs
Portuguese
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Old 08-18-2014, 10:00 AM   #54
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What's that crazy plumbing all about in the fore left of the photo?

With what looks like Home Cheapo brass plumbing fittings , could it be the battery for the engine room lights?
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Old 08-18-2014, 12:04 PM   #55
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She-Kon wrote;
"The two eared versions work fine."

Yes they do .... if one gets the thrust bearing bulkhead installed in perfect alignment. With the two ear bearings one can adjust alignment in yaw but not in pitch. That's the only potential problem w the two ear that I know of.
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Old 08-18-2014, 12:49 PM   #56
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She-Kon wrote;
"The two eared versions work fine."

Yes they do .... if one gets the thrust bearing bulkhead installed in perfect alignment. With the two ear bearings one can adjust alignment in yaw but not in pitch. That's the only potential problem w the two ear that I know of.
Eric, I'm confused. Wouldn't the flexible drive take care of misalignment of the bulkhead?
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Old 08-18-2014, 02:06 PM   #57
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Eric, I'm confused. Wouldn't the flexible drive take care of misalignment of the bulkhead?
The shaft handles misalignment between the shaft and the transmission but the thrust bearing has to be properly aligned with the shaft.
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Old 08-18-2014, 02:22 PM   #58
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The shaft handles misalignment between the shaft and the transmission but the thrust bearing has to be properly aligned with the shaft.
Ah so, thank you.
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Old 08-21-2014, 02:24 PM   #59
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Aquadrive systems use a CV type of u-joint, not the type of open u-joint in Mark Pierce's boat.

See Aquadrive
I was hoping Mark Price would comment on this. His boat and mine are Seahorse Marine manufactured. I believe we both have the open U joint configuration you mention. The system looks very similar to the Aquadrive system. I have been trying to find documentation on my system but have not found any so far. It seems to be proprietary Seahorse system. I had a problem with the system when i first started using my boat. The bolts that secured the U joint and the flange to the transmisson would become lose after a bit of use. Seahorse sent me a locking flange that fit over the bolts. It had tabs on it that are bent around the nuts to keep them secure. Perhaps Mark can comment on this. Otherwise, the system has had no issues since i got the boat in 2010.
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Old 08-21-2014, 02:48 PM   #60
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'azubair,
How does the open joint handle plunging motion? Thrust?
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