Inboard Vs Outboard

> 10 years ago
Reply
Register to post, see what you've read, and subscribe to topics.
ManniB
ManniB
NSW
15 posts
NSW, 15 posts
29 Oct 2009 10:50pm
Hi All,

The Pelican 27 I recently bought has had the Inboard (volvo MD7A) diagnosed as "had it". So I am thinking of having it and the sail drive out taken out and put on a 9.9 HP long shaft high thrust o/board.
The fill the hole created by taking out the inboard with more batteries, a small generator and another water bladder.

The type of sailing I intend to do over the next few years is essentially around Botany Bay area, Sydney Harbour and a bit of coastal cruising.

Question to you guys who have a lot more experience that I have, is an outboard better than an in board for this type of sailing? Leaving aside that resale would be better with an inboard.

Also thanks for the tip on the rigger in the Balmoral area. She is been rerigged, boom bag and self furled this week. Now need to sort the damn engine out so I begin to enjoy her.

Also are there any cruising clubs around Sydney that go on organised cruises around or up and down the coast? I am not into the raising scene unless it is to the bar.

Regards

Manni
cisco
cisco
QLD
12365 posts
QLD, 12365 posts
30 Oct 2009 12:03am
Hi Manni,
I searched on boat point for a Pelican 27 and came up with "Sara Jane" currently located in Middle Harbour. Is this the yacht you bought for $15,000 or less???

Firstly let me congratulate you on buying a yacht. However keep in mind it is said that the two best days of ownership of any yacht are the day you buy it and the day you sell it.

However if you have bought a "right" yacht, the days in between can be quite enjoyable too.

If you have bought "Sara Jane" or another example of the design in similar condition, I believe you have bought a "right" yacht.

Usually when someone buys a yacht it is for pleasureable purposes and therefore is an emotional decision rather than a commercial decision. Under these circumstances it is common for the "hang the expence" attitude to prevail and more money to be spent than is wise.

All is not lost though as it is still possible to have a ton of fun without breaking the bank or the marriage if you have one.

To your specific question, replacement of the Volvo engine (a notorious propagator of nautical nightmares) and sail drive (which can be just as bad), with an outboard engine.

As a short term and economical solution to the problem, this is a good idea. You will need to get one with a long leg though and you may need to mount it midships on this yacht. An 8hp engine should be more than adequate with a short pitch propellor. This is all fine for harbour river and inshore work.

For coastal passages an outboard engine on a yacht is quite undesireable except for the tender.

Before you committ to a course of action, I strongly recommend you investigate the possibility of fitting say, a Kubota engine to your existing sail drive leg. Hunt around the net and you may be surprised with what turns up. Try these guys first http://www.diecon.com.au/index.html and www.marinediesel.com.au/default.asp.

There are a lot of other factors involved but I am tired and going to bed. If you want to ask me further questions, message me. Cheers Cisco
hangtime
hangtime
NSW
397 posts
NSW, 397 posts
30 Oct 2009 10:17am
Hi ManniB
The Yamaha 9.9 hp engine is a very reliable motor and gives a lot of thrust for its size, Its designed to push larger boats rather than runabouts which most outboards of this size are desined for. The gearbox and prop are of a ratio for low torque not "speed". I have 2 of them on my 40ft catamaran and done over 12000 nautical miles including Lord Howe Island..
The trick is to get the long shaft version and if you can run it thru a well rather than bolt it on the back, Rearmounted it will come out of the water often when the stern raises on a wave. Removing the "Green death" and replacing it with an OB will have a trim imbalance so try and ditribute weight to compensate.
Happy sailing
MichaelR
MichaelR
NSW
862 posts
NSW, 862 posts
30 Oct 2009 11:28am
ManniB congratulations on your new toy!

Whilst I'm still relatively new to being an owner of a yacht, I can speak about having an outboard on a stern bracket.

Mine is a 25 ft Top Hat, it has a full keel and does have a well. The 8hp Tohatsu 4 stroke that came with the boat is however bolted on the stern on a lowering bracket.

Good points.
It's cheap to run - about 1 litre per hour if that.
On the bracket it's quiet, much quieter than an outboard in the well or diesel under the floor and very simple to service being a 4 stroke. Plugs and filter, plus a change of oil. No need to mix fuel either.
Bad points.
The dill who chose the motor didn't check to see whether it would fit in the well correctly - it didn't so it's on the transom.
The dill who put it on didn't re-inforce the transom enough so there is a bit of wobbling going on which I will sort out within the next month or so.
The dill who put it on didn't get the long shaft version, because the bracket doesn't allow for the engine to be tilted, just lifted in the vertical position.

All that being said, I've had to motor up the coast for about an hour and the prop didn't break water at all. It does on the odd occasion in the harbour with all the slop under the harbour bridge, but it's only a short blip.

I would have preferred diesel myself, however it wasn't a deal breaker for the boat and we were trying to stay below $12 for a purchase price of a reasonably well looked after craft that we could sail straight away. Also, at this point, I'd have no hesitation going up the coast on longer passages with this set up.

Michael
ManniB
ManniB
NSW
15 posts
NSW, 15 posts
30 Oct 2009 5:00pm
Hi Guys, thank you for your input.
Cisco, you nailled it in one. That is the correct boat out at Balmoral and given what I paid I am happy with her. Even though I need to spend what I paid again just to ready her for sailing.

Luckly, I do not have a missus she did give me the ultimatium the boat OR her routine, I hear she is quiet happy living down the coast on her own.

Sounds like the way to go that is, leave it all in their for now, throw an outboard on the back and when I am going to do some serious coastal stuff, then drop a diesel back in and use the O/B for back up.

Hangtime, A 40' cat! that is my 3 year goal. Why does everyone refer to them as "the green death"? BUT you are right not to many good reports about them BUT if you google Volvo MF7A there is still alot of boats that come up with them in it. Interesting that you recommend it in a well as opposed to out the back where as MichaelR indicates that it is quieter out the back in than in a well?

MichaelR, I liked you description of the "DILL". That is the problem with people that "think they know". They can cause all sorts of grieve for owners down the track. That is why I have asked for the opinions of people that know so it does not become a pain in the butt down the track.

Nice boat the tophats and safe I looked a quiet a few. I like your anaylsis and I think that is what I will do. With a yammi 9.9hp.

Thank you all again and I will probably see you out there some where on the blue.
Regards

Manni
MichaelR
MichaelR
NSW
862 posts
NSW, 862 posts
30 Oct 2009 5:44pm
Hey Manni, I could just very well be one of those "dills" myself in the eyes of another.

s67.photobucket.com/user/Miker_01/library/Dulcamara you'll see what she looks like, and get an idea of what an outboard on the stern looks like.

As with everything, it's got pros and cons.....and looking at Sara Jane it seems like fitting a stern bracket for an outboard may be a little trickier than a Top Hat, there's a lot of clear air between the end of the hull and the water.

One thing I didn't mention, with controls on the outboard being over the back, throttle and gear changes are trickier when manouvering to a jetty, whilst still needing the tiller to steer from the cockpit, but you get used to it and nothing happens quickly.....

Michael.
ManniB
ManniB
NSW
15 posts
NSW, 15 posts
30 Oct 2009 6:02pm
Hey Michael

Checked out your photos good looking internals. Looks like you got a bargain.

How far does the prop drop down into the water when you lower the bracket?

Regards

Manni
Please Register, or first...
Topics Subscribe Reply