Linkert Carburetor Service

[Peter Cooke]

I hope this one appears,

Got it now thanks.

[T. Cotten]

Pics can be deceiving, Duke,

Even when focused.

Although it gives the impression it was a pretty recent 'rebuild','
the only things I can be certain of is the Starklite float and -50 floatvalve.

Even if everything else was in order, the boatanchor float would be enough to curiously varnish-foul as shown.
(But I see no #13 stamping; Was the throttledisc installed backwards?)

....Cotten

[dukekleman]

Cotten,

The throttle disc was installed correctly.

The treat to me was how clean the entire carburetor was in general.

Witness marks of previous service were very minimal, especially for the vintage year. No damaged threads, no repaired threads, no body distortion, broken flange surfaces, modified fuel circuits, modified calibration, etc...

It's the nicest carburetor of its era I've personally been blessed to come across in my 39 years of service on Harley Davidsons.

Duke Kleman

[dukekleman]

Cotten,

Screenshot_20251228-103157.png
I've circled the #13 Disc ID you asked about in post #17.
If you zoom in on post #14 you can see it pretty clear, better than the circled image above

Not sure if this helps,

Duke Kleman

[T. Cotten]

I'll have to take your word for it, Duke,



There's something like a 1, but its not centered between the screws (ignore the Schebler on top):



Virtually all assemblies need a fresh refit anyway;
Is there a "keyway" worn at the top, or bottom?



That is often a good gauge of borewear, and the gap that would be left with even a perfect NOS disc.
(Beware that the ordnance-packed examples were often as much as .002" undersized!)

....Cotten

[dukekleman]

No, there is virtually no wear.
When I look through my otoscope for better inspection, there is a light sign of the start of one, maybe 0.020" off the edge of the bore hole for the throttle shaft.
It's nothing I'm going to consider addressing.

Other than the fact it has really low mileage for a 1937, I contribute the fact of little to no wear from the throttle shaft springs low tension.
The tension is noticably lighter than normal which reduces upward pressure and bore/disc wear.

Duke Kleman

[T. Cotten]

No, there is virtually no wear.
When I look through my otoscope for better inspection, there is a light sign of the start of one, maybe 0.020" off the edge of the bore hole for the throttle shaft.
It's nothing I'm going to consider addressing.

Other than the fact it has really low mileage for a 1937, I contribute the fact of little to no wear from the throttle shaft springs low tension.
The tension is noticably lighter than normal which reduces upward pressure and bore/disc wear.

Duke Kleman

How will you really know until the final assembly, Duke?

Have you inspected it for daylight with fresh bushings installed, shaft, and disc, while torqued to a stressplate as if installed to a manifold?

If your customer won't want to pay your time and trouble to get it perfect,
I understand completely!

....Cotten
PS: The only OEM throttleshaft spring I am aware of is the spiral friction disc, which should not put any wear thrust on the shaft at all. (The springy control cables contributed greatly, however!)

Please note the the vertical travel limiting bearing faces are the bottom collar of the shaft, and the bottom bushing, which was very durable MONEL. Borewear is predominately side-travel.)

(Well, I guess there were these BECK springs, but I never saw one!)