[Rhodes22-list] GB Outboard Motor Mount and Engine Position

[Gary Felix]

Very helpful, thanks Roger.
- Gary

On Sun, May 26, 2019, 2:17 PM ROGER PIHLAJA <Roger_Pihlaja at msn.com> wrote:

> Gary,
>
> The attached photo shows the Honda 8.0 hp extra long shaft outboard on S/V
> Dynamic Equilibrium in the fully lowered position.  Note, how far below the
> waterline the cavitation plate on the motor ends up.  Transom mounted
> outboards on the standard parallelogram linkage motor mounts suffer from
> the problem of lifting the outboards water intake and prop too close to the
> surface of the water as the stern is lifted by waves or the hull heels to
> starboard.  Sucking air into the engine’s cooling system &/or cavitating
> the prop are both very bad for the motor.  The GB engine mount helps solve
> these issues in two ways.  First, the GB engine mount positions the engine
> closer to the transom vs parallelogram linkage engine mounts.  This locates
> the engine’s lower unit in deeper water on the stern wave.  Second, the GB
> engine mount permits the vertical position of the engine to be infinitely
> adjusted several inches up and down.  On port tack, the engine can be fully
> lowered to compensate for heeling, as illustrated in the photo.  On
> starboard tack or in a following sea on a broad reach or run, the engine
> can be raised up as required to keep the power head out of the water.  The
> GB engine mount combined with an extra long shaft outboard gives the
> greatest heavy weather motoring capability available with currently
> available outboards.  Being able to motorsail in heavy weather is a huge
> tactical advantage.
>
> I’ve been running my outboard in this configuration since 2009.  I have
> experienced no issues with leaking or failed seals, bearings, &/or exhaust
> back pressure which might be expected from deeper than normal submersion.
>
> As long as there is a mechanical stop on the bottom of the track, remove
> any spacers that are limiting the downward travel on the GB motor mount.
>
> Roger Pihlaja
> S/V Dynamic Equilibrium
>
> [cid:059FE252-6CA8-49FB-BB3F-0162881ADD2E]
>
> Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
> From: Gary Felix<mailto:gfelix1 at gmail.com>
> Sent: Sunday, May 26, 2019 1:39 PM
> To: The Rhodes 22 Email List<mailto:rhodes22-list at rhodes22.org>
> Subject: Re: [Rhodes22-list] Tiller-Motor Link for Yamaha 9.9
>
> Thanks Jose - just what I needed to know! I will get in touch with General
> Boats.
>
> On Sun, May 26, 2019, 1:24 PM Jose Faraldo-Gomez <jose.faraldo at gmail.com>
> wrote:
>
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> > This is the fitting you seem to be missing.
> >
> > J
> >
> >
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