HighAltitudeTR3
Jedi Trainee
Offline
I am having a string of issues with my SU's. I set my carbs to what the book recommends for a baseline, then I lean it out. The engine warms up, idle increases from about 650 to 1500 RPM. I reduce idle rematch the carbs (the suction and fuel mixture (with colortune). I discover I'm running SUPER rich so I tune back my carb to run lean, I end up closing the mixture screw all the way. Now the car is running (somehow) like a champion!! Test Drive = Perfect. Fast forward a few hours, car won't start, not even close, I press on the accelerator and I barely get it to run. It backfires through the carb and stalls easily. I try to open the mixture screws about a full turn and then I just stop because even if it works it's not telling me anything. The fuel is some how finding its way in to the carb via some other channel than the jet on both carbs.
I have ordered the leanest needles from Moss (I'm at ~9000 ft) and another rebuild kit. My plan is to rebuild the carbs again reseat the leanest needles and start from scratch to set the carbs. Is there anything else I should do? My jet doesn't look worn so I don't think it needs to be replaced. I think I need to soak the seals in oil? What oil should I use? Any other tips?
TIA
I have ordered the leanest needles from Moss (I'm at ~9000 ft) and another rebuild kit. My plan is to rebuild the carbs again reseat the leanest needles and start from scratch to set the carbs. Is there anything else I should do? My jet doesn't look worn so I don't think it needs to be replaced. I think I need to soak the seals in oil? What oil should I use? Any other tips?
TIA