JJC Posted October 11, 2019 Report Share Posted October 11, 2019 After 47 years the choke knob broke. The repro knob doesn’t want to fix itself on. Looks as though the hole isn’t quite right. Any advice on how to get it to fix securely? JJC Quote Link to post Share on other sites
stuart Posted October 11, 2019 Report Share Posted October 11, 2019 13 minutes ago, JJC said: After 47 years the choke knob broke. The repro knob doesn’t want to fix itself on. Looks as though the hole isn’t quite right. Any advice on how to get it to fix securely? JJC Compare where the sprung locating pin is located in relation to the end of the shaft and then depth check how far the hole is located in on the new knob, you may have to file the hole towards the rear of the knob more to get the pin to engage. Stuart. Quote Link to post Share on other sites
JJC Posted October 11, 2019 Author Report Share Posted October 11, 2019 Thanks Stuart. I have tried to measure it (with my new bargain Lidl digital vernier) . It looks very close. Worry is if I file out the hole will the knob be loose? JJC Quote Link to post Share on other sites
stuart Posted October 11, 2019 Report Share Posted October 11, 2019 If you only file it just enough for the button to spring into place then it will be fine. Stuart. Quote Link to post Share on other sites
JJC Posted October 11, 2019 Author Report Share Posted October 11, 2019 7 minutes ago, stuart said: If you only file it just enough for the button to spring into place then it will be fine. Stuart. Stuart - thanks will attempt not to butcher it JJC Quote Link to post Share on other sites
JJC Posted October 12, 2019 Author Report Share Posted October 12, 2019 Job done. With a mirror and a strong light worked out it wasn’t entirely the hole being in the wrong place. Main problem was the angular hole for the spigot (?) to go in tapered towards the front of the knob. I have a forerunner of the Dremel which has lots of tiny routers. Opening out the taper allowed the spigot (if that’s what it’s called) to go fully in and the locking pin worked. JJC Quote Link to post Share on other sites
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