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Linkert needle valve lever

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Post Sun Mar 14, 2021 3:39 am

Posts: 59
Location: London, England
Has the needle valve lever (27395-27) always had a captive ball and spring? I have 2 that appear never to have had them.
Assuming they should have and I can obtain a suitable ball bearing (what size?) any ideas on how to make them captive. It would be a shame to waste them.
Thanks
Ron

Post Sun Mar 14, 2021 7:33 am

Posts: 3539
Location: Central Illinois, USA
The choke detentes were staked so gently, Ron,..

That they often fell out upon disassembly. Lift levers and highspeed needle detentes usually stayed put.

The balls are 5/32" in diameter.
Re-staking is mostly a convenience in case you must disassemble on the road, and great care must be taken to avoid setting the ball too deep.

My punch is 3/16" diameter, and countersunk slightly to center upon the ball. After greasing the spring and ball to hold it in place, the punch is used to depress the ball below the surface of the casting, and smacked lightly until the ball is retained by a lip 'upset' by the punch.

DTNTSTAK.jpg


Smack it too hard, and you will have to weld it out!

Please note also that the lift lever spring is shorter, and using too long of a spring will bind.

DTNTSPGS.jpg


....Cotten
PS: Beware that potmetal Schebler chokes are often too brittle from age to stake safely.
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Post Mon Mar 15, 2021 12:08 am

Posts: 59
Location: London, England
Thanks Cotten. I have enough for my present needs, so another little repair job down the line.

Ron

Post Mon Mar 15, 2021 11:16 am

Posts: 3539
Location: Central Illinois, USA
You will spend much more effort figuring out a fixture, Ron,..

Than you will staking them!

The cam follower ball is not only a different size (9/32" maybe, I'd have to look), but its 'upset' appears to be 'spun' to a bezel. So I cheat and just put a dab o' silver solder on the worn spot.

AGBALL.jpg


....Cotten
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