Australian Olympic vs British Seagull AD102

Talk about interesting old outboards which aren't Seagulls here

Moderators: John@sos, charlesp, Charles uk, RickUK, Petergalileo

User avatar
Collector Inspector
Posts: 3902
Joined: Sun Jun 29, 2008 4:32 am
Location: Perth Western Australia
Contact:

Re: Australian Olympic vs British Seagull AD102

Postby Collector Inspector » Sat Mar 23, 2019 9:27 am

Charles uk wrote:Any manufacturers mark/logo inside piston? Bruce.


No marks at all................it is cheap in there.

Cast piston etc.

Quick Edit

The piston and the con-rod are both green sand machined to size and location.

The rod has jig clamp witness for centres and straightness.


BnC
A chicken is one egg's way of becoming others

User avatar
AusAnzani
Posts: 938
Joined: Wed May 21, 2014 10:47 am
Location: Australia
Contact:

Re: Australian Olympic vs British Seagull AD102

Postby AusAnzani » Sun Mar 24, 2019 7:56 am

Collector Inspector wrote:6 x 6 S!

304 has the same ring pins.

Con-rod as yours. Ugly but very sturdy.

Piston skirt is 2.2525"

Piston pin height = to BS.

Exhaust tube is exactly 15".

Exhaust port has a bridge.

BS style drive shaft. Fits over 0.37" square section.

Whitworth fasteners inc coarse threads.

They spared no cost saving measures with these. Hardware shop stock items. 8)

20190323_111956.jpg

20190323_111947.jpg

20190323_111935.jpg

20190323_111919.jpg

Crankcase and cylinder were silver frosted.

Gearbox/WP housing as well.

Cheers

BnC


Was going to make a correction about the threads but you beat me to it B.

Bought a BSW / BSF thread gauge yesterday and confirmed threads are in fact BSW.

Interesting that UNC nuts fit easily, but I tried the reverse also and find that BSW nuts will bind against UNC threads. Pitch must therefore be same, but with different angles. Learn something every day.

B, please measure ring gaps when positioned towards spark plug end of the bore and advise. I will be doing same.

Am finding it difficult to accurately measure pun diameter with my limited tools.

Charles, you've asked a lot of questions which have been answered. I've asked one of you re ring gap and have got zip in return. Please, if you could share your thoughts, it would be much appreciated.

Thanks & Regards
S

User avatar
AusAnzani
Posts: 938
Joined: Wed May 21, 2014 10:47 am
Location: Australia
Contact:

Re: Australian Olympic vs British Seagull AD102

Postby AusAnzani » Sun Mar 24, 2019 8:02 am

As B has kindly confirmed piston heights are same as Seagull, I now plan to fit Seagull piston on to the Olympic conrod, and seagull barrel on to the Olympic crank case. I will also check if the seagull barrel fits to the Olympic exhaust tube.

If the outcome is positive, a solution becomes available to owners of Olympic outboards with crusty barrel.

Regards
S
Last edited by AusAnzani on Mon Mar 25, 2019 12:51 am, edited 1 time in total.

User avatar
Collector Inspector
Posts: 3902
Joined: Sun Jun 29, 2008 4:32 am
Location: Perth Western Australia
Contact:

Re: Australian Olympic vs British Seagull AD102

Postby Collector Inspector » Sun Mar 24, 2019 10:29 am

S

I started to measure the ring gap............and stopped!

I have of course handled the rings and with another observation re ring locating pin.....I need to do the testing from a different perspective.

It is what it is but the reason why exactly could be rather ........thinking out of the square........pretty bloody 8)

Hang aye.

BnC
A chicken is one egg's way of becoming others

User avatar
AusAnzani
Posts: 938
Joined: Wed May 21, 2014 10:47 am
Location: Australia
Contact:

Re: Australian Olympic vs British Seagull AD102

Postby AusAnzani » Mon Mar 25, 2019 12:51 am

Collector Inspector wrote:S

I started to measure the ring gap............and stopped!

I have of course handled the rings and with another observation re ring locating pin.....I need to do the testing from a different perspective.

It is what it is but the reason why exactly could be rather ........thinking out of the square........pretty bloody 8)

Hang aye.

BnC


Cool ...... I think lol

User avatar
Collector Inspector
Posts: 3902
Joined: Sun Jun 29, 2008 4:32 am
Location: Perth Western Australia
Contact:

Re: Australian Olympic vs British Seagull AD102

Postby Collector Inspector » Mon Mar 25, 2019 11:14 am

Yes is cool S

I will email/discuss directly to you shortly.

BnC
A chicken is one egg's way of becoming others

User avatar
Buzzook
Posts: 345
Joined: Sat Mar 12, 2011 3:18 pm
Location: Kempsey, NSW, Australia

Re: Australian Olympic vs British Seagull AD102

Postby Buzzook » Fri May 17, 2019 6:15 am

Another Australian Olympic has turned up in Oz, this one in Lilydale VIC, engine number '450'.

The vendor is the daughter of the original owner (now deceased) and is looking for a good home for his two motors.

The other, with the broken gearbox fin, is a British Seagull AD19664.

The two motors have swapped some parts, with the green-painted tank, glassbowl fuel filter, carburettor and probably throttle cable and throttle mechanism from the Olympic at present on the Seagull.

You'll note the Olympic (with black Seagull tank) has the typical Olympic carry handle, and in one pic you can clearly see the cavitation plate evident on the gearbox that was typical of Olympics.

Thanks to Bruce (collectorinspector) for the above ID. At first blush I just assumed it was an owner-painted Seagull. Doh.

Have advised the vendor it's worth around $350-400 in this condition. Anyone local in VIC wants it, let me know and I'll put you in touch.
You do not have the required permissions to view the files attached to this post.
gullible, a. The effect on reason of the appearance of anything 'Gull-related on an internet sales site

User avatar
AusAnzani
Posts: 938
Joined: Wed May 21, 2014 10:47 am
Location: Australia
Contact:

Re: Australian Olympic vs British Seagull AD102

Postby AusAnzani » Fri May 17, 2019 7:06 am

Nice find!

However with most advertised in recent times in the $100 to $150 range, I would think that runner in very nice original condition would be worth $250 at best. I'm not quite seeing that here, but it may just be the photos!

I sincerely hope you haven't set the owner up for disappointment.

It is located within half hour from me. I would love to see it and be able to make a decent offer, but am concerned that their expectations now are very unrealistic.

Regards,
S

User avatar
AusAnzani
Posts: 938
Joined: Wed May 21, 2014 10:47 am
Location: Australia
Contact:

Re: Australian Olympic vs British Seagull AD102

Postby AusAnzani » Tue Jun 04, 2019 2:03 am

Just sharing some pics of Olympic # 450 after a clean up by its previous owners.

I am also happy to say it is now part of my collection.

IMG_7074.JPG


IMG_7075.JPG


IMG_7077.JPG


IMG_7078.JPG
You do not have the required permissions to view the files attached to this post.

User avatar
AusAnzani
Posts: 938
Joined: Wed May 21, 2014 10:47 am
Location: Australia
Contact:

Re: Australian Olympic vs British Seagull AD102

Postby AusAnzani » Tue Jun 04, 2019 2:04 am

IMG_7079.JPG


IMG_7080.JPG


IMG_7082.JPG


IMG_7083.JPG
You do not have the required permissions to view the files attached to this post.

User avatar
AusAnzani
Posts: 938
Joined: Wed May 21, 2014 10:47 am
Location: Australia
Contact:

Re: Australian Olympic vs British Seagull AD102

Postby AusAnzani » Tue Jun 04, 2019 2:15 am

IMG_7084.JPG


IMG_7086.JPG


IMG_7087.JPG


IMG_7088.JPG


It is in great condition for its age, turns over smoothly, has a heap of compression and a healthy spark.

The chrome and aluminium are in really nice condition with only minimal rust and oxidisation.

The tank brackets and transom clamps have lost their original nickel plating, so I plan to get those redone soon. I'll have the tank straps cleaned up at the same time, and will repair and repaint the tank, tiller and cylinder to bring it back to as near as possible ex-factory condition. Along the way, it will also receive a new throttle cable and fuel hose which is currently missing.

Being a more recent build than those mentioned earlier in this thread, # 450 features the cavitation plate water-pump/exhaust housing and is a nice addition to the collection.

More pics down the track.

Regards,
S
You do not have the required permissions to view the files attached to this post.

User avatar
Oyster 49
Posts: 3072
Joined: Tue Oct 26, 2010 6:55 pm
Location: Derbyshire, UK

Re: Australian Olympic vs British Seagull AD102

Postby Oyster 49 » Sat Jun 08, 2019 12:07 pm

That’s a tidy looking engine 8)


Return to “Other Old Outboards (Non-Seagulls)”

Who is online

Users browsing this forum: No registered users and 3 guests