30/07/2026
"Gettin' jiggy wid it!?"
Lots of Series 1 Land Rover Solex carbs come in with broken choke bodies. The cause is gorilla mechanics trying to undo the nut holding the lever on the spindle without supporting the lever. The spindle twists, the lever reaches its forward stop and snaps it off.
Mr Fuggle's usual technique for repair is to machine the base of the broken stop flush, centre-drill it and fit a replacement stop made from brass with an integral peg. It's brass because an aluminium one would last 5 minutes. Oh, and the brass comes from scrapped Lucas CW1 wiper motor spindles!
The trouble is, to hold it steady in the vice of the milling machine needed at least two sets of t-nut studs, milling machine wedges and steady bars screwed to the milling machine base to simply press the body down on to the vice and because it was just pressed down, there was always a danger of it slipping.
A brain-wave, use of a sketch from a previously drawn CAD file of the whole carburetter and a 3D printer resulted in a Fuggle's Fettling Machine-O-Matic.
Simply screw the broken choke body to the jig, making use of the integrated captive nuts added during the 3D printing process, clamp the jig in the vice and using the DRO on the milling machine, the broken nub is machined, centre-drilled and then fully drilled to suit the new brass peg. It can be used in a session and repair a load of them at once without re-setting the whole assembly. Simples.