MikeC5 Posted August 7, 2011 Share Posted August 7, 2011 Anyone have a properly operating choke (mixture enrichment) cable? My car didn't come with one and I tried installing a generic choke cable. The problem is it has no way to lock in place. The spring on the carb just pulls it back. Maybe the cable needs some rust to work properly? Link to comment Share on other sites More sharing options...
TonyAus Posted August 8, 2011 Share Posted August 8, 2011 The correct cable has a knob with a series of concentric grooves on the shank. A sprung ball engages in these grooves to hold the mixture needle in the desired position.Mike, I think you need the cable retaining assembly which bolts up behind the dash. Surely they cannot be too hard to find - someone out there must have one. Can anyone help? Link to comment Share on other sites More sharing options...
MikeC5 Posted August 8, 2011 Author Share Posted August 8, 2011 Thanks Tony, actually I do have the cast part that bolts up behind the dash; just no knob or cable. I will be going to Hershey in October and we have one of these on my list. Link to comment Share on other sites More sharing options...
MikeC5 Posted August 9, 2011 Author Share Posted August 9, 2011 I see where the spring and ball would go in the cast piece. Anyone have a spare cable to sell? Link to comment Share on other sites More sharing options...
BYmechanic Posted August 11, 2011 Share Posted August 11, 2011 This is what you need. You may be able to make both the cable and rod if you can't find them at a swap meet. Cable is about 2 feet long. Marv Link to comment Share on other sites More sharing options...
MikeC5 Posted December 12, 2011 Author Share Posted December 12, 2011 Hi guys, I did manage to get a cable so now I'm only missing the spring and ball. I found a ball bearing that fits but am having trouble coming up with a suitable spring. Anyone perchance have a photo and/or dimensions, wire thickness of said spring? Link to comment Share on other sites More sharing options...
BYmechanic Posted December 13, 2011 Share Posted December 13, 2011 Mike, you may have to try a few springs to test the choke rod to see if it holds well. From memory, I think the spring is about 1/2 inch long and light to medium thickness. The choke rod should move smoothly though the tube but stay in the desired position you require. Marv Link to comment Share on other sites More sharing options...
Guest Backyardmechanic Posted December 13, 2011 Share Posted December 13, 2011 Try a ball point pin spring cut to size Link to comment Share on other sites More sharing options...
MikeC5 Posted December 14, 2011 Author Share Posted December 14, 2011 Thanks guys. I don't think the average ball point pen spring is strong enough. We have one decent hardware store in the area that I'll check this weekend.. Link to comment Share on other sites More sharing options...
MikeC5 Posted May 18, 2012 Author Share Posted May 18, 2012 I hooked it up tonight and am having some problems. The cable really doesn't seem to have enough leverage to pull up the mixture needle lever arm. And I need to come up with a better clamp to hold outer cable to the carb. How smoothly does you choke work? Maybe I need to try and grease up the cable too. It seems like my mixture needle spring is too stiff. Link to comment Share on other sites More sharing options...
TonyAus Posted May 18, 2012 Share Posted May 18, 2012 Mike, are you using a flexible inner cable? If so, this could be your problem as the original is solid wire. Link to comment Share on other sites More sharing options...
MikeC5 Posted May 19, 2012 Author Share Posted May 19, 2012 Solid wire Tony. I'm going to disassemble the main jet/enrichment control and see if the spring in there is properly seated. The lever seems to hard to turn. I also have to come up with a good way to clamp the cable casing at the carburetor. If anyone could snap a picture of what it's supposed to look like I'd be most appreciative. Link to comment Share on other sites More sharing options...
MikeC5 Posted May 19, 2012 Author Share Posted May 19, 2012 I mean 'too' hard to turn.... Link to comment Share on other sites More sharing options...
MikeC5 Posted June 9, 2012 Author Share Posted June 9, 2012 I did sand down the spring OD a bit and got it to fit properly in the mixture needle holder. This helped. I made up this to clamp the cable to the carb. Not elegant, but it works... Link to comment Share on other sites More sharing options...
Guest john69 Posted June 12, 2012 Share Posted June 12, 2012 (edited) The original cable bracket angles toward the carburator lever from the front, a little less distance than the bracket with clamp that you made, actually about 7/16"; the clamp may put too much pressure on the cable, making it difficult to move. the original clamp bracket is made of sheet metal about 1/2" wide; it encircles the cable, being doubled over, and has an offset to the front, where it is clamped to the carburator bowl by a screw. It projects from the carb. bowl 1". I have taken a picture of it and will post it later today, hopefully. Edited June 12, 2012 by john69 mistakes in text. (see edit history) Link to comment Share on other sites More sharing options...
MikeC5 Posted June 13, 2012 Author Share Posted June 13, 2012 Hi John, I was careful tightening up the u-bolt so it does work O.K. I also made an effort to grease the wire. A close up photo would be great. I tried to make a sheet metal bracket but couldn't get the diameter right (and hard to bend the tight radius without the right tools). Link to comment Share on other sites More sharing options...
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