[Fot] DCOE setup on stock tr6

[Robert Lang]

 Hi - Sounds like you have a vacuum leak. I'd put a vacuum gauge on the setup and tune your idle using that. If you're running a stock cam, you should be able to pull more than 15 inches of vacuum, so try advancing the ignition timing and balancing off the idle screws (not the mixture, the idle screw) to get you idle down and still pull the vacuum.
If that doesn't help, double check your float levels - if the float level is wrong you won't be able to get the carbs to work right.
Note that the idle jets do just about nothing after the throttle is off the stop - after that you're on the mains. Sounds simple, but like nobody seems to get that. 50F11 should be more than adequate idle jets.
Regarding the distributor - the timing needs to be ROCK SOLID. If it bounces at all or if there are skips, you need to fix that first. You can't tune bad ignition with the carbs. :-)
Regarding timing, I've set up plenty of cars with 15 BTDC at idle. The trick is to get about 32 or 33 degrees total advance at 3000 or 3500. How you get there depends on how much mechanical advance your distributor makes - if you have Lucas, there are several different numbers available.
Feel free to ping me off list.
Regards,Bob Lang

    On Friday, November 15, 2019, 7:52:12 PM EST, chris panayotti via Fot <fot at autox.team.net> wrote:  
 
 Hi all, 
I ran across an archive on your site from a Robert Lang, looks like from December last year. So Taking a total shot in the dark emailing this. Anyway in the thread he talks about running triple DCOEs on a Canon manafold on a TR6 with stock cam and stock compression. I am trying to do the exact same. He mentioned toward the end that he would be willing to share knowledge on the jets and knowledge.
So here it goes, the main symptom I am running into currently is accleration off idle.  It starts up and idles pretty good with mixture screws all out about 1.25 turns. But bumping the throttle at that point either load or no load bogs bigtime, bassically kills the engine if I hold it, even if I go very slowly. I did manage to get it to a point where it revs so so if I keep bumping it fast with no load, but with any load at all it bogs and dies.  I've come to the conclusion my progression circuit is to blame and that operates off the idle jet, of which all are currently 50F11.
I've gone over all the valve timing with a fine toothed comb and verified a stock cam by checking the lift. All valve gaps are perfect At .010".  I removed the vacuum retard from the distributor and am running it at 12deg BTDC right now, and the mechanical advance does work and brings it up to 24ish deg.  It is a stock points distributor by the way.  I've read a few people mention that I need to upgrade that but others have successfully used it also. I've checked compression all are close and above 125psi.
Any help or insight would be GREATLY appreciated. I've been trying to get this to run right for weeks. I keep crossing things off the list but still haven't gotten it right. I'm still concerned about the distributor but it seems well enough that it should run properly. I'm fairly confident it's a carb problem.
If you need any more info about my setup please ask
Thank youChris Panayotti_______________________________________________
fot at autox.team.net

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