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Finally feel like I've got my carbs right
- Thread starter RickB
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Thanks, guys...again! I was able to get the carbs dialed in very nicely this evening. Baby Blue now purrs like a kitten when the engine is at idle and it is running smoothly through all speed ranges. We'll see if the gas mileage improves as well. If it does, great. If not, I'm going to chalk it up to the "there are worse problems to have" file.
Jim_Gruber
Yoda
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When you fill up make sure you are using premium. These little engines were designed/built for when the quality of gasoline was substantially better than we can get today. Around town with your foot to the floor, don't tell me you aren't listening and enjoying that engine winding out 23-25 is acceptable but when you get on the Expressway, steady state, expect to get 30-35 or more. With Bugsy my '68 with a '66 1098 23-25 was about normal around town/going to the grocery 3 miles away and not giving the engine a complete chance to fully warm up.
I do use premium, that was one thing the PO (longbridgehealey) advised me to do. Considering how small the tanks on these cars are, even with premium, it usually doesn't cost more than 20 - 22 bucks to fill up.
I took the car on the Westminster run for my daughter's speech today and it performed beautifully. The small of carbon was completely absent for the first time and based on the fuel gauge's movement on the 60 mile round trip, it appears to be doing better in that department, too. I probably won't be able to completely tell until the next tank, since I spent so much time idling the motor while adjusting the carbs this time around.
I'd say the carbs are about 90 - 95% perfect. However, given the variances in air pressure and temperature from day to day, I don't think I'll ever get them to 100%. I also don't think the benefit of that last 5 - 10% is going to be overly significant. Right now, the engine idles relatively smoothly just under 1000 rpm with a hint of the generator light coming on and runs through the speed range well. It was much quieter and smoother at 60 mph than it ever had been before.
I took the car on the Westminster run for my daughter's speech today and it performed beautifully. The small of carbon was completely absent for the first time and based on the fuel gauge's movement on the 60 mile round trip, it appears to be doing better in that department, too. I probably won't be able to completely tell until the next tank, since I spent so much time idling the motor while adjusting the carbs this time around.
I'd say the carbs are about 90 - 95% perfect. However, given the variances in air pressure and temperature from day to day, I don't think I'll ever get them to 100%. I also don't think the benefit of that last 5 - 10% is going to be overly significant. Right now, the engine idles relatively smoothly just under 1000 rpm with a hint of the generator light coming on and runs through the speed range well. It was much quieter and smoother at 60 mph than it ever had been before.
Great...good to here. Next you can try adjusting the mixture one flat at a time on both carbs so they stay matched. In for lean and down for richer. If it stumble's under acceleration you need a little richer. I set mine till they just give clean acceleration with a warmed up engine. In cold weather they don't always want to come up to operating temp and then I'll richen a flat to give clean acceleration. Mine are free enough that I can turn them with my finger's!
Kurt.
Kurt.