11-09-2022, 02:13 PM
Just reporting back as people were kind enough to offer support.
I sat down and read about how an SU carb. works. That was useful.
The piston is weighted, for those on the same learning curve, there's an obvious steel weighting disc on the top edge of the piston. So I removed the pale blue spring and re-introduced the damper with 3 in 1 oil.
I worked right back from the manifold- new gasket there, and all new gaskets for the carb.
I screwed the mixture screw in leaner, its at 7 flats out to run best. I then experimented with metering needles, AN, GG, and at my brother's suggestion a number 6.
The number 6 needle is hands down the best. The car didn't tick over very nicely on the GG, the AN was ok, but not as good as the 6.
I'm still fine tuning the mixture/ timing by road testing, but it's pretty good now.
It shouldn't be that every car is different with basically the same set ups, but that does perhaps seem to be the case.
Looking forward to my first speeding ticket.
Thanks again for all your helpful comments.
I sat down and read about how an SU carb. works. That was useful.
The piston is weighted, for those on the same learning curve, there's an obvious steel weighting disc on the top edge of the piston. So I removed the pale blue spring and re-introduced the damper with 3 in 1 oil.
I worked right back from the manifold- new gasket there, and all new gaskets for the carb.
I screwed the mixture screw in leaner, its at 7 flats out to run best. I then experimented with metering needles, AN, GG, and at my brother's suggestion a number 6.
The number 6 needle is hands down the best. The car didn't tick over very nicely on the GG, the AN was ok, but not as good as the 6.
I'm still fine tuning the mixture/ timing by road testing, but it's pretty good now.
It shouldn't be that every car is different with basically the same set ups, but that does perhaps seem to be the case.
Looking forward to my first speeding ticket.
Thanks again for all your helpful comments.