Britannia Light Twin flywheel removal

Talk about interesting old outboards which aren't Seagulls here

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

Post Reply
User avatar
Oyster 49
Posts: 3163
Joined: Tue Oct 26, 2010 6:55 pm
Location: Derbyshire, UK

Britannia Light Twin flywheel removal

Post by Oyster 49 » Sat Oct 21, 2017 4:47 pm

I thought I would create a new thread for an interesting problem. I have 2 Britannia Light Twin engines that date from the early 1930s. One is has the slightly later villiers ignition, and one has the earlier type, is this a Miller ignition? Not sure.

The flywheel nut has a shoulder which sits below the rope pulley, so by turning the nut one way tightens the flywheel, anti-clockwise acts as a puller to remove the flywheel. Undo the nut and the 4 top plate screws and you can take off the top plate and rope pulley to access the points.

However on my engine the top plate has been split and has been welded, but split again as soon as I tried to remove the flywheel. So I have to work out how to get it off to work on the ignition.

So it looks like I'll have to make a replacement top plate! I'm thinking of making a steel one to use to get the flywheel off, and a correct alloy one to make the engine look correct, the photos are not my engine, but a similar one found on the forum.
image.jpeg
image.jpeg
You do not have the required permissions to view the files attached to this post.

User avatar
Collector Inspector
Posts: 3989
Joined: Sun Jun 29, 2008 4:32 am
Location: Perth Western Australia
Contact:

Re: Britannia Light Twin flywheel removal

Post by Collector Inspector » Sat Oct 28, 2017 11:43 am

Now THAT is a nice engine aye!

Let me know how you go.

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

wbeaton
Posts: 27
Joined: Fri Apr 06, 2018 12:22 pm
Location: Canada

Re: Britannia Light Twin flywheel removal

Post by wbeaton » Tue Apr 24, 2018 3:04 am

So if I understand correctly if you remove the four screws and turn the flywheel nut counter clockwise the top plate will come off to allow you access to the points. But if you don’t remove the screws the entire flywheel will pop off. That’s good to know and very interesting. Aluminium welds are weak. Could you have it recast at a local foundry?

User avatar
Oyster 49
Posts: 3163
Joined: Tue Oct 26, 2010 6:55 pm
Location: Derbyshire, UK

Re: Britannia Light Twin flywheel removal

Post by Oyster 49 » Tue Apr 24, 2018 11:18 am

Future project I'm afraid as I'm working overseas for the foreseeable future. I will make some sort of tool to allow it to come off, and then make a new top plate.

Post Reply