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Model G type engine with all alloy top end?

Posted: Wed Jun 03, 2020 7:57 am
by Bullet Whisperer
An unusual machine I will be working on. I have never seen an engine like this. The top end is all alloy. Anyone know anything about it?
Sorry, it would seem I cannot add pictures at the moment for some reason, but imagine a Model G engine, with all alloy top end ...

Re: Model G type engine with all alloy top end?

Posted: Wed Jun 03, 2020 8:16 am
by mart
is it like this?

Image

Re: Model G type engine with all alloy top end?

Posted: Wed Jun 03, 2020 8:27 am
by mart
go to: imgbb.com

upload a photo,select BBC code then copy and paste the link into your message box.

Image

Re: Model G type engine with all alloy top end?

Posted: Wed Jun 03, 2020 8:29 am
by mart
i meant BBcode !

Re: Model G type engine with all alloy top end?

Posted: Wed Jun 03, 2020 8:35 am
by Bullet Whisperer
Hi Mart, that's the one! Usually, to add pictures, I just click on 'add files' and my pictures all appear and I just have to double click those I want to post, but that didn't work this morning for some reason. Thanks, Paul.

Re: Model G type engine with all alloy top end?

Posted: Wed Jun 03, 2020 9:35 am
by windmill john
Clear all your browser cache.


John

Re: Model G type engine with all alloy top end?

Posted: Wed Jun 03, 2020 9:59 am
by stinkwheel
windmill john wrote:
Wed Jun 03, 2020 9:35 am
Clear all your browser cache.


John
Nah, the image posting bit on the forum has been broken for a while, you need to use a third party image host for now.

Re: Model G type engine with all alloy top end?

Posted: Wed Jun 03, 2020 10:07 am
by mart
I found the image a while ago on Red Devils motorcycles website- here is what they say about it:

" Mine for the last five odd years and featured in earlier posts, my Model G trials is up for sale. I got it from a chap who lived up in Redditch who had put it together in the eighties. He won a lot of events on it. I have won none! In fact I haven't really used it enough and with an imminent arrival in the shed it needs to find a new home...

When I got it the Model G sported girder forks, I wasn't too happy with the geometry of them and although previous owner had proven them to work by winning I found them difficult so have fitted a pair of Indian Enfield teleforks (better than the Redditch ones as they are double damped). I also fitted a more attractive tank and exhaust. The bike is a bitsa, the engine is a Model G with an ultra rare pre-war Bullet alloy top end, the gearbox is Clipper and the wheels Bullet. The frame is a Model G. Geometry is spot on for trialling but it is a cut and shut job and function over form, should you care to it could be tidied up. Engine tune is for stump pulling torque and it will mount most rises at tick over with the ignition slightly retarded. It is not road registered."

cheers

Re: Model G type engine with all alloy top end?

Posted: Wed Jun 03, 2020 8:57 pm
by Adrian
Well spotted, Mart.

A.

Re: Model G type engine with all alloy top end?

Posted: Fri Jun 05, 2020 8:30 am
by Dan H
Sounds like you have the pleasure of working on the rare 1939 alloy type engine, I think the image upload function should be working now and hopefully my image attaches to this post which shows an old factory shot of this engine type.