Whats wrong with my Carbs?, wants to stall leaving the traffic light. |
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Whats wrong with my Carbs?, wants to stall leaving the traffic light. |
HansJan |
Mar 25 2017, 09:12 PM
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#1
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Member Group: Members Posts: 394 Joined: 5-April 16 From: Sugar Land TX Member No.: 19,860 Region Association: Southwest Region |
Hello,
Not having much luck with the Search function. The car: 1972, with 103mm cylinders (2.3l), aftermarket cam and larger valves with double springs. Fuel supply: Dual EMPI HPMX 44 Carburetors, Jets: .55 Idle, 1.55 main, Air 1.75. History: After car-fire engine was out, heads taken off and some studs and springs replaced. Changed to quieter exhaust. Had trouble with dialing in the carburetors and changed the jets to the recommendations from EMPI (see above). It runs a lot better now. Remaining complaint; The car runs pretty good (especially above 2,800) RPM. However; It takes me a while to leave after each stop (stop signs traffic lights etc) because the car want to stall. When I push the accelerator to quickly the RPM dips down, and car will die. Only when I ease on the paddle very gently, it will increase in RPM, and I can lift clutch at above 1,500 RPM. Anyone here understands this issue? |
HansJan |
Apr 20 2017, 09:59 PM
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#2
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Member Group: Members Posts: 394 Joined: 5-April 16 From: Sugar Land TX Member No.: 19,860 Region Association: Southwest Region |
Installed larger (0.65mm) idler jets today.
This made a huge difference. I believe that it solves the problem. As per Racer Chris (and my uncles) advise I have ordered larger main jets (0.170) and air inlets (2.20) to make it complete. Have been reading a book about Weber carbs, which is really helpful. Unfortunately I couldn't finish my test drive and dial it in some more, because the ignition switch broke. Have ordered the parts I need from AA (and a starter relay from Amazon). In the tech-articles is a nice description for how to replace the ignition switch on later models. Is anyone aware of such an article for the 1972 model year? Br, Han Jan |
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