By continuing to use this site, you agree to our use of cookies. Find out more

Member postings for Fernando Giaccaglia

Here is a list of all the postings Fernando Giaccaglia has made in our forums. Click on a thread name to jump to the thread.

Thread: Os Gemini twin glow engine - conrod req'd - no longer made
19/09/2022 00:40:47

Hello,

And sorry for resuscitating an old thread.

As you can see this is my very first post here, I just bumped into this thanks to google so I decided to join and ask...

I just got a O.S.FT-240 Gemini that I'm thinking in converting it to petrol and it has the infamous aluminium (bronze coloured) old conrods.

I read about them failing but I'm not sure how serious the issue is. I do have a small milling machine and some (very little) machining experience so I wonder if I should get some 7075 Al and try to machine a pair or just run the original ones??? I'm afraid that if they fail the damage could involve other parts that are also extinct.

I saw a video from a guy in Switzerland (very professional looking job) also the pics here from Dean that looks like he took a slightly different approach to it so is nice when you see things made in different ways, at least makes me feel more encouraged to give it a try.

I'd appreciate any input from anyone with experience on either these engines or machining these. I don't know how precise my mill is (just blame it to the machine) coupled to my limited experience. The biggest brake I find is that I might be missing some very precise measuring tools, I do have the basic stuff (calipers, indicator, regular 0.01 micrometer, and that's about it)

Thanks,

Fernando

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Sign up to our Newsletter

Sign up to our newsletter and get a free digital issue.

You can unsubscribe at anytime. View our privacy policy at www.mortons.co.uk/privacy

Latest Forum Posts
Support Our Partners
cowells
Sarik
MERIDIENNE EXHIBITIONS LTD
Shopping Partners
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest

 

Donate

donate