How is this linkage to Kpump bracket held on?

[e31fan]

Found my culprit, linkage had popped off side bracket of Kpump, I can’t seem to find out how it’s held on? C-clip? Nut? Any insight appreciated!

[dlacey]

Part No8 has an internal spring clip, it just pushes on to the ball protruding from the pump lever. Can't clearly see in you picture...has the linkage popped-off the ball or has the ball stayed in the linkage but separated from the pump lever?

[Son of Marty]

The ball part is pressed into the lever and peened on the backside. The best way I've found to reattach that is to spot weld it in position from the back, I don't know if you can get a new lever or not. 

[e31fan]

4 minutes ago, dlacey said:

Part No8 has an internal spring clip, it just pushes on to the ball protruding from the pump lever. Can't clearly see in you picture...has the linkage popped-off the ball or has the ball stayed in the linkage but separated from the pump lever?

That a good question. All I see is a little bolt short looking rod  protruding from ball and it’s separated from pump lever. Tried to push it back on, but it just comes off

[Schnellvintage]

7 minutes ago, Son of Marty said:

The ball part is pressed into the lever and peened on the backside.

This is most likely the problem.  It's not peened any longer.

[dlacey]

17 minutes ago, e31fan said:

Tried to push it back on, but it just comes off

Oooh, that is not easy to fix... the exact positioning of that ball in the lever is critical to the synchronisation of KF pump to throttle butterfly (air-fuel ratio). To remove that lever from the pump is a big job that is a total pump removal and strip down...see that lever at 5:40 in this video: https://youtu.be/eSBJh4nxETg 

 

If it were my 'daily driver' i would likely just push the ball back in the hole  & secure it  it with a blob of MIG welded kluge.

Or, buy a new ball with a threaded base and bolt on a replacement with threadlock:

Angle Ball Joint For Throttle Linkage With Nut Fits Mecedes-Benz Man Trucks

WWW.EBAY.CO.UK

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Outer Thread: M6 x 1.00mm. Inner Thread: M6 x 1.00mm. Renault Trucks. Volvo Trucks. Sampa 096.2224. PE Automotive 140.068-00A. Lemforder 22256 01. DT Spare Parts 9.05306.

 

[jgerock]

Wonder why the ball end came out of the lever arm?  Older Mercedes also used the same linkage bits.

[OldRoller]

Clean the ball stud and lever with carb cleaner, mix a small batch of JB Weld and reinstall. Leave for 24 hours. 

Repaired an old Merc diesel in a boat that way, lasted until the engine was replaced many years later.

[e31fan]

 

Micro surgery performed, ball is now back on Kpump bracket. Coated bracket and ball with JB and accidentally dropped it down the motor, panic ensued. Found it, thank god for my trusty extendable magnet, cleaned it up and reattached. Good thick coat of JB Weld all around.  Now wait 24 hours and hope for the best. I’d honestly be shocked if it didn’t hold. Brake cleaner, dried for hours, then scuffed up the metal on both parts before the JB weld. Cross your fingers for me!! 🤞

[e31fan]

Huge shout out @OldRoller, waited 25 hours after setting it, took it for some serious spirited driving and it held like a champ, so glad to have her back out after a month!