Changing single lever to twin lever - Page 3

Mollers · 12 January 2009, 08:58

Quote:

Originally Posted by Dirk Diggler

Well, almost all American sports/powerboats use twin lever, and in the case of twin engined boats, you haven't really got any choice!

The only time I've come across a twin lever arrangement was on a jet. One for the throttle and the other for the bucket.

Dirk Diggler · 12 January 2009, 10:49

Quote:

Originally Posted by Mollers

The only time I've come across a twin lever arrangement was on a jet. One for the throttle and the other for the bucket.

You need to get out more then!

Mollers · 12 January 2009, 10:51

Quote:

Originally Posted by Dirk Diggler

You need to get out more then!

I've had a couple of Merc inboards, but not in the same boat.

Dirk Diggler · 12 January 2009, 10:57

This is the type of control most often found in a proper sports or powerboat, sometimes as an 8 lever control on some of the bigger boats!

IBWET · 12 January 2009, 12:00

I changed from a single Suzuki control to a twin lever livorsi set up; my personal view is I'm glad I did it. The major benefit is the control over the engine when in rough water, it’s much finer with the twin set up, the throttle can be fined tuned (8mm Allen key) and is much more accurate. I organised the gear lever (shorter one of the two) on the right so as to be nearer the wheel so an inadvertent bump would be a little more unlikely but no lock on neutral available (which I still think is wrong) It came equipped for no start in gear.

The trim is in the throttle lever. For my kind of boating I prefer the twin lever set up.

Dirk Diggler · 12 January 2009, 12:19

Quote:

Originally Posted by IBWET

but no lock on neutral available

You can have neutral lock with a Salmon Control.

IBWET · 12 January 2009, 12:29

To be honest I've no idea what a Salmon control is. If it removed the chance of bump, whooosh, help! help!, my hand would have gone up for one when I bought the Livorsi stuff..

have you got a pic?

Quote:

Originally Posted by Dirk Diggler

You can have neutral lock with a Salmon Control.

Cookee · 12 January 2009, 16:12

Like Dirk I am familiar with these multiple lever setups - they are sometimes labelled "race controls" as boats with no foot throttle and separate helm and throttleman use these arrangements for the same reasons that Ibwet says - more throttle control.

In fact we fitted the BananaShark 770 that Lewy on here has with Gaffrig controls and they can also come with in gear protection which is easy to fit. It also has an Incontrol foot throttle which operates in tandem with the hand control. It would require quite some determined effort to put it into gear by accident, and I would say that many throttles do not come with a neutral lock as standard today, something which I would prefer them to bring back for normal use.

I would say a waste of effort and money for most users on "normal" boats unless they want to be different, I guess a lot of people aren't happy with the standard product!

JSP · 12 January 2009, 16:33

Not to be different, just what I'm used to.
There was a very old pilot boat that had twin screw that had a button in the centre of the hub for the levers to stop it going into gear. Now that was a pain in the arse!

gtflash · 12 January 2009, 17:20

I agree with jsp about a twin lever control being better for low speed control! BUT for a different reason.......

With a twin lever control you can nudge in and out of gear without any rev increase therefore keeping just the torque provided by the prop change to steer the boat without accelerating!!!

I have bben looking at them for my rib(such as cookee fits) as my current mercury control is pants and a sometimes struggle to even know if im in or out of gear, forward or backward(no positive click)

Poly · 12 January 2009, 17:35

Quote:

Originally Posted by gtflash

With a twin lever control you can nudge in and out of gear without any rev increase therefore keeping just the torque provided by the prop change to steer the boat without accelerating!!!

I can do that with my bog standard single lever...

Cookee · 12 January 2009, 17:36

Quote:

Originally Posted by gtflash

I agree with jsp about a twin lever control being better for low speed control! BUT for a different reason.......

With a twin lever control you can nudge in and out of gear without any rev increase therefore keeping just the torque provided by the prop change to steer the boat without accelerating!!!

I have bben looking at them for my rib(such as cookee fits) as my current mercury control is pants and a sometimes struggle to even know if im in or out of gear, forward or backward(no positive click)

I think that is a fault of your setup rather than single lever controls - it shouldn't do that!

Downhilldai · 12 January 2009, 20:10

Quote:

Originally Posted by IBWET

I changed from a single Suzuki control to a twin lever livorsi set up; my personal view is I'm glad I did it. The major benefit is the control over the engine when in rough water. .....

That wasn't your main reason for the change, though, was it?

http://rib.net/forum/showthread.php?t=21215

Quote:

Originally Posted by Dirk Diggler

This is the type of control most often found in a proper sports or powerboat, sometimes as an 8 lever control on some of the bigger boats!

I had a JCB once with that set-up.

IBWET · 12 January 2009, 21:39

[QUOTE=Downhilldai;278135] That wasn't your main reason for the change, though, was it?

http://rib.net/forum/showthread.php?t=21215

Nope,as the thread states, it was because the original suzuki lever would'nt hold the position It was also heavier/stiffer to use .
I discovered the better action of the Livorsi throttle purely by chance.

I'm not an engineer, but think one lever doing two things compromises both.

I think the way I do, after recent experience of using both set-ups on the same boat.

Just my view.

Bigmuz7 · 12 January 2009, 21:48

Quote:

Originally Posted by Downhilldai

I had a JCB once with that set-up.

Ah the old piano bar layout ... that takes me back

not modern iso rubbish

well actually its quite good .. and a modern standard now that I come to think of it

Downhilldai · 12 January 2009, 22:02

Quote:

Originally Posted by IBWET

..the original suzuki lever would'nt hold the position It was also heavier/stiffer to use .

So there were shortcomings in the design or set-up of the Suzuki control box, rather than the principle of it having a single lever?

Quote:

Originally Posted by IBWET

.. I discovered the better action of the Livorsi throttle purely by chance.

Yes, I thought so.

Quote:

Originally Posted by IBWET

...I'm not an engineer, but think one lever doing two things compromises both.

Bigmuz7 and any number of excavator operators would probably disagree with you on this

Julian · 13 January 2009, 10:12

Hi Cooke

Happy New Year

Do Gaffrig do a single lever control and one that i can buy in the uk etc.

Cheers

Julian

Dirk Diggler · 13 January 2009, 10:19

Quote:

Originally Posted by Julian

Hi Cooke

Happy New Year

Do Gaffrig do a single lever control and one that i can buy in the uk etc.

Cheers

Julian

Yeh, they do a single lever, throttle and shift combined, but only as a side mount.

Cookee · 13 January 2009, 10:43

Quote:

Originally Posted by Dirk Diggler

Yeh, they do a single lever, throttle and shift combined, but only as a side mount.

I think Tony Davis who posts on Boatmad.com can get that stuff (there may be other suppliers!)

Julian · 13 January 2009, 11:00

Thanks guys, unfortunately i am looking for a top mounted one to go in middle of console etc.

They seem hard to find.

Thanks anyway

Julian