General Category > Bike Builds, Rebuilds And Restorations Only

1948 Airone - restoration

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s1120:
Its a cool bike, but with all that rust everywhere under the finish, if you start taking it apart to repair stuff it makes zero sense not to restore. If nothing else the tin all needs doing, and no use doing that half way...  maybe a serviceable clean/repair on mechanical bits, and a restore on the tin work.. 

Groover:
I'd just get it running and let it idle forever in your shop as music... the low RPM capability of those engines is very zen.

I'd also start sourcing the right parts to restore it.

Edit: got the engine confused with the Falcone, 500. That's the low idle magical one. (I misread where you said 500cc)
https://youtu.be/-j_B-ZbmjLI

Canuck750:

--- Quote from: Groover on November 25, 2020, 08:33:31 AM ---I'd just get it running and let it idle forever in your shop as music... the low RPM capability of those engines is very zen.

I'd also start sourcing the right parts to restore it.

Edit: got the engine confused with the Falcone, 500. That's the low idle magical one. (I misread where you said 500cc)
https://youtu.be/-j_B-ZbmjLI

--- End quote ---

This 250 idles very slowly, a gentle chug chug. Itís so easy to turn over by hand, compression must be very low. I have collected some engine service parts but need to find rims and spokes. I am rebuilding a 1948 GTV engine and thanks to Patrick and Shawn for their brilliant translation of the factory repair manual the mysteries of the bacon slicer have been explained. I will replace the case bearings and felt seals at a minimum. If it needs guides, valves or a piston I will replace them.

Anyone have a contact for a shop that can go through the magneto and dynamo?

Thanks
Jim

Glawster:
I sent my MCR4E to Marco Valenti for reconditioning.  He sells all the parts but persuaded me to send him the whole unit.  I was nervous about this, but within 3 weeks the magneto was returned with new coil, condensor and bearings.  Cost including return postage (to UK) was Ä180, which seems to be somewhat less than half the price of a UK overhaul of a Luca / BTH
https://valentimotorestauri.com/en/

Canuck750:

--- Quote from: Glawster on November 25, 2020, 11:48:16 AM ---I sent my MCR4E to Marco Valenti for reconditioning.  He sells all the parts but persuaded me to send him the whole unit.  I was nervous about this, but within 3 weeks the magneto was returned with new coil, condensor and bearings.  Cost including return postage (to UK) was Ä180, which seems to be somewhat less than half the price of a UK overhaul of a Luca / BTH
https://valentimotorestauri.com/en/

--- End quote ---

Thank you!
0
I will send mine to Valenti, Mike Peavy handles all sales in North America for Valenti so I will ask Mike if I send it through him.

I started the disassembly today getting ready to pull the engine out of the frame, cleaning the parts as I take them off and cataloguing them.



I had changed to oil when I got the bike and fired it up, I was surprised to see the tar like sludge that came out of the oil reservoir when I removed it and flushed it. Same heavy sludge deposits inside the right hand timing case,



Interesting stack of sheet metal shims under the magneto, some of them are cut from Shell Oil tins.



I don't think I can salvage the sprockets  :evil:, hardly anything left of them, the rear is no better



I don't think the gear selector has ever been off the motor, it took a lot of pressure before it cracked loose



Such a difference from the 70's bikes I am used to working on, something new at every turn, a great COVID project!


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