Author Topic: New Vintage Project, 250cc M-VG, Reconstruction of a 1933 French Jonghi 350  (Read 27696 times)

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Offline thefrenchowl

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No idea, Dr B. ...The French call electrical tape Chatterton as well!!!

More work done this afternoon: The footrests need to move back in the frame, so I cut and moved the anchors...



















More frame mods tomorrow!!!

Patrick
« Last Edit: May 26, 2018, 04:12:22 AM by thefrenchowl »
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Offline Koncretekid

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That should work.  But don't forget, if the footpegs are within 6" of the rear axle, you'll have to run "A' Class.
Tom
We get too soon oldt, and too late schmart!
Life's uncertain - eat dessert first!

Offline thefrenchowl

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Yes, Koncretekid,

The right one is OK, the left one's a tad too long.

They aren't the right shape anyway, so they'll be redone later on...

That's where they were on the 1933 record bike:



Will try now to unbrase the brake pedal anchor...

Wish me luck, I don't feel my small torch will give me enough heat to unbrase it...

Patrick
« Last Edit: May 26, 2018, 04:13:29 AM by thefrenchowl »
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Offline thefrenchowl

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Hi,

Left the frame alone today cause I recieved this morning all the bits to do the front axle:















Patrick
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Offline manta22

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Patrick;

Consider drilling the bolt head and nut for safety wire.

Regards, Neil  Tucson, AZ
Regards, Neil  Tucson, AZ

Offline thefrenchowl

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It's in the planning, Neil...

5mn left before dinner, so I attacked the side car eyes without mercy...  :-D :-D









Patrick
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Offline thefrenchowl

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Long session today, but worthwhile... Foot rests



I have plenty of spare spanners in which to make strong parts  :-D...



Tubes with threads welded at both ends.







Small walk with Susan in the early afternoon... Once back, started on the rear brake pedal...





Just polished et temporarely fixed this period aftermarket french Vitex foot change that has been following me for about 40 years...



We'll see much later if it's suitable...

Patrick
« Last Edit: May 28, 2018, 06:18:53 PM by thefrenchowl »
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Offline thefrenchowl

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Hi,

The brakes have poor guidance for the acting cam, specially on the back where the lever has a pronounced offset... Let's modify all this and get a straight lever...






Eyeballing the geometry wanted, two more spanners will be sacrified...





Nearly all done...



Patrick
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Offline thefrenchowl

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Hi,

Bit of reinforcement of the torque arm, its two little flats were a touch flimsy...







Patrick
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Offline manta22

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Patrick;

What braze welding alloy are you using?

Regards, Neil  Tucson, AZ
Regards, Neil  Tucson, AZ

Offline thefrenchowl

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 :-D

I don't really know, Neil...

They came from my 1st job in GB back in 1985...

The firm went bust and I was told to help myself since we, newer guys, had no access to redudancy payments... So that's what I took, together with a little Myford lathe with lots of missing bits!!!

Now down to the last 10 rods...

They have flux imbeded in little depressions on the periphery...

Patrick
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Offline manta22

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Patrick;

It appears to be a bead-forming alloy, similar to All-State 11, etc. Good Stuff!

Regards, Neil  Tucson, AZ
Regards, Neil  Tucson, AZ

Offline ggl205

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Patrick;

It appears to be a bead-forming alloy, similar to All-State 11, etc. Good Stuff!

Regards, Neil  Tucson, AZ

The U.K. is still king of brazed joins.

John

Offline salt27

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Patrick;

It appears to be a bead-forming alloy, similar to All-State 11, etc. Good Stuff!

Regards, Neil  Tucson, AZ

The U.K. is still king of brazed joins.

John


Yeah, but the U.S. is the king of rolled joints.    :roll:

 Ok so maybe it's Jamaica.     :-D

Patrick, thanks for sharing your restoration.
Nice fab work.

  Don

Offline thefrenchowl

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Hi, rolled joints, you're cracking me up...

Done a lot recently, hubs have been sent to build the wheels, I've redone a few bits for the forks, nowt too entertaining really!!! But today, I started on the crank...



The bike is indeed French, but the pin, race and rollers are from Great Britain, Hoffmann made:





Strange thing on Jonghi 350cc... The six holes on the wheels are filled with lead... With age, centrigugal force and mileage, they start moving a lot.

I'll recast all that like on my 1st TJ 4 and will immobilize the lot a bit better with screws.



Rapid polishing of the rod:



Old air drill to get to the innaccessible corners of the rod...



See you,

Patrick
« Last Edit: June 15, 2018, 12:03:35 PM by thefrenchowl »
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