Saving Old Seagulls

Looks like a new found late Marston(OP) leaping away on the bay.Somone really wants this, 1st day and its already above £100,what is going on? Is the transom bracket cosher, difficult to see with just one photo.Over to you Marston experts........

The OP never had a clutch so someone has messed with this one in the last 70 years.
Can't tell about the transom bracket, but it appears to have the wrong flywheel, prop, water return pipe & possibly fuel tank.
But the cylinder looks right.

Please remember "buyer beware"

I may well pop over to see this one, it's not too far away.

It's very important not to get carried away by a serial number. As the other Charles says the magneto is completely wrong, the water pipe doesn't look right, nor does the water pump housing, etc etc.

The transom bracket could be anything - the photo just isn't good enough to tell.

If I see it I'll report back...

Obviously the vendor saw my earlier post; despite a couple of mails I still have no contact from him with address etc so I can go to see it. The bidding as I write has reached over £150.00 which is quite a lot for what seems to be there.

My love/hate relationship with the bay continues firmly pointing at the 'hate' end of the scale.

Mind you, there are a few things on there at the moment. There's a 102 tank with a Seagull logo, there are a few other bits, a 40 with a clutch, and a QB, so maybe it's not all bad.

£217 + £35 postage has got to be a record for a 25% OP 75% SD bitsa.

I've got a spare ON cylinder & crankcase I wonder if the underbidder still wants one, for that sort of money I could build him one.

I would be very interested to find out what sort of bracket that one had, you couldn't teel (or at least I couldn't) from the photo.

Wonder if it had an SD driveshaft/pinion/crank? If not, then mating up an SD bottom end to an OP power head could be interesting. Or am I remembering this wrong (other Charles?) - if I recall correctly the OP had a round shaft with a key.

We will, I am sure, view this sort of price with mixed feelings in days to come.

Attractive prices (for vendors at any rate) may bring new examples to light that have been lurking undiscovered for years. Sadly the other side of the coin is that everyone's rusted out Century will in their eyes be worth a fortune.

Wonder what a proper one, with proper viewing, proper photos and the like would fetch?

From what I could see Charles this motor comprised

OP cylinder & crankcase
AD or later flywheel & magneto + baseplate
SD everything below cylinder. & the copper water return pipe.

The crankshaft on an OP does not have a 3/8" square connector on the drive scaft end but a circular end with a 1/8" key groove & the drive shaft is round all the way down to the pinion with coresponding 1/8" key slots broached into a larger bush at either end.
Don't take the keysizes as a fact I have made & fitted new keys, but these sizes are from memory.

So the easyiest way to construct this amalgamation would be to use a standard 102 square ended crankshaft, though I have seen them with the top 1/2 of an OP/ON drive shaft welded onto the bottom half of a later 102 shaft.

Unfortunatly the carb & the transom bracket were not visible, both items are very specific to the Marston designed motors.

More reasons to avoid buying on there...

Just had another unfortunate this week, bought a 102 'in need of slight attention' It was seized solid! Took the top off the ignition, almost a colony of starfish in there!

There are a lot of sharks out there!
john
SOS

Got to agree with john although for many(myself included)it can be there introduction to the world of seagulls although once you start to learn your way around them a little and discover the real world price for prop springs etc its best avoided