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Author Topic: New Vintage Project, 250cc M-VG, Reconstruction of a 1933 French Jonghi 350  (Read 24759 times)
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thefrenchowl
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« Reply #60 on: May 25, 2018, 05:38:20 PM »

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 » Logged

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Koncretekid
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« Reply #61 on: May 25, 2018, 09:47:44 PM »

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
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Life's uncertain - eat dessert first!
thefrenchowl
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« Reply #62 on: May 26, 2018, 04:04:48 AM »

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 » Logged

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« Reply #63 on: May 26, 2018, 11:09:50 AM »

Hi,

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















Patrick
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manta22
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« Reply #64 on: May 26, 2018, 12:21:00 PM »

Patrick;

Consider drilling the bolt head and nut for safety wire.

Regards, Neil  Tucson, AZ
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Regards, Neil  Tucson, AZ
thefrenchowl
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« Reply #65 on: May 26, 2018, 03:15:51 PM »

It's in the planning, Neil...

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









Patrick
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thefrenchowl
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« Reply #66 on: May 28, 2018, 06:16:32 PM »

Long session today, but worthwhile... Foot rests



I have plenty of spare spanners in which to make strong parts  grin...



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 » Logged

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« Reply #67 on: June 08, 2018, 04:17:58 AM »

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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« Reply #68 on: June 08, 2018, 04:26:10 AM »

Hi,

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







Patrick
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« Reply #69 on: June 08, 2018, 06:47:12 PM »

Patrick;

What braze welding alloy are you using?

Regards, Neil  Tucson, AZ
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« Reply #70 on: June 10, 2018, 02:54:33 PM »

 grin

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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« Reply #71 on: June 10, 2018, 03:08:52 PM »

Patrick;

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

Regards, Neil  Tucson, AZ
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Regards, Neil  Tucson, AZ
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« Reply #72 on: June 10, 2018, 03:47:51 PM »

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
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« Reply #73 on: June 10, 2018, 09:37:51 PM »

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.    rolleyes

 Ok so maybe it's Jamaica.     grin

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

  Don
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thefrenchowl
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« Reply #74 on: June 15, 2018, 12:00:58 PM »

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 » Logged

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