Tricky choke location

Here we have the inside of my MiG.3 showing the choke lever on the Tillotson on my 3W 55. The trouble is, I cannot for the life of me come up with a sensible mode of operation for the choke. The lever is exactly in line with the mounting plate for the fuel tank and the elevator, rudder, and throttle servos. The lever acts fore and aft through 90 degrees and there is no scope for taking a pushrod through the fuselage sides as the cowl slides over the fus'. I cannot get a servo in close enough to couple with the arm and any longer fore-aft operating rod will clash with the top of the servo plate or fuel tank. I cannot extend the choke operating lever as I cannot then fit the carburetor over the studs because the lever won't go over the tank mounting plate. Help!!!

Hard to tell from those photos but can you go forward and down with a manual rod exiting underneath next to the head?

Be good to see the Mig in the air, it's been a long time coming!

Looking again I realised the choke arm is at the top of the carb so you won't be able to exit by the head, but can you go forward to somewhere behind the prop?

JonTappin wrote: Looking again I realised the choke arm is at the top of the carb so you won't be able to exit by the head, but can you go forward to somewhere behind the prop?

The spinner for this model is an enormous 7" aluminium jobby. I would have to put a lot of bends in a pushrod to try and get it to exit from a machine gun port in the top of the fus'. I am not sure then that I would have enough puchase to operate the choke without the rod bending. But thanks for the suggestion - keep them coming

As Jon states, it is difficult to tell from the pics, but, could you use a mini/ micro servo, operating thro' a bell-crank.

Stuart

Possibly use a rod and guide, the rod exiting the side of the fuselage similar to those switch mount efforts. (I am assuming it is forward of the wing position) The rod and knob on the end is only sticking out when the choke is pulled. In normal operation it would hardly be noticeable. Maybe those who don't know would assume it was an electrical switch instead of a crummy idea of a choke mechanism.....

As previously stated, its difficult to see everything but my suggestion if you don't mind a small hole in the top go the fuzz is to make a small metal plate to mirror the choke lever and solder hex head in line with the shaft which you could operate with a hex driver. Photos show the concept.

I use this method on my CAP but with a flat blade screwdriver. The beauty is that the driver can be left in place until she fires on choke then twist the choke off and withdraw the driver.

I'm happy to manufacture something for you.

John yet another suggestion.
From the pics it looks like you could get a straight piece of piano wire from the choke lever to the
outside of the side of the fuselage, possibly passing through the cowl.
If a threaded clevis is connected to the choke lever, a rod with a threaded end could then be passed through
the fus & screwed into the clevis. This would enable the cowl to be removed by simply unscrewing the rod from the clevis
and withdrawing it..
The downside is you would need to remove the wing to access the clevis.
I have plenty of M2.5 clevises & M2.5 threaded control rods if you want to give it a go.
Colin.

4Pedalsfly wrote: From the pics it looks like you could get a straight piece of piano wire from the choke lever to the
outside of the side of the fuselage, possibly passing through the cowl..

What I said..........

Many thanks for the suggestions. The side exit rod is a no go because this would mean installing and drilling through the cowl to insert the rod. But once it is connected to the choke lever and the fuel tank is installed I can no longer disconnect it (in order to subsequently remove the cowl) because the clevis would be hidden behind the fuel tank. The photos don't do justice to how deep into the fus' I have to reach in order to access the choke.
I like Kev's idea but the downside is that I cannot add anything to the top of the existing choke lever otherwise I will not be able to insert the carb' onto its studs. And as I mentioned the carb' is too deep in the fus' to easily access to screw on the coupler afterwards.