Timing

[phaetn]

k. will do.

Tnx!

[Fi8spider]

My trouble is, Weber number stamping gets smaller the older I get A few years ago I employed a magnifying glass full time on the workshop bench!
Are your air correctors now, 165 in the primary and 180 in the secondary circuit?
Out of interest, may I ask what type of spark plug you use (heat range too)

I think majicwrench has nailed your idle problem, as you suspected too.

[phaetn]

Frak! Got home, pulled the air filter with plate and diagnosed the problem in less than a minute: The trouble is, indeed, with the idle circuit. The problem isn't with the jet being plugged -- it's that there's NO idle jet. ACK! No wonder it's so lean and won't idle!

It must have fallen out somewhere on yesterday's test drive. I didn't see it was missing when I was playing with the mix screw as that area is pretty much obscured by the lunch box air filter plate and hose that leads to it. Sadly, I didn't notice it was missing once I nursed it home, either, and switched the air correctors back to their original config.





Will be a few days at least before I can get another. Yuk.

Thanks for the help magicwrench and Fi8spider.

Cheers,
phaetn

[spiderdan]

Just by coincidence, at this very moment, Spiderdan happened to be driving by (not in his Spider yet) and he popped by to say hello as, seeing a dark blue Fiat round those parts, he thought it might be me. It was a nice to put a face to the name!

It was a pleasure meeting you too phaetn. Sorry I couldn't stay longer. Hopefully Canadan can help you out and it's something simple. Odds are he has "seen that before" and has a quick fix for you. Good luck and hope to see you Sunday at the ICCO met.

Ciao

[phaetn]

Compression even on all cylinders.

Jetting now pretty much to Weber spec, with the exception of the fact that since I don't trust the original 165 indicated air corrector, I now have a new 170 in the primary circuit and a 160 in the secondary. All other primary and main jets are correct. Might go down on the primary idle later, as per Brad's suggestions, though even when I was using a smaller .55 rather than the current .60 the same issue was still present.

Replaced fuel filter in engine bay. Still might replace one in the trunk. Have to get a fuel pressure gauge tester and check when mounted on windshield wipers during actual driving conditions.

Next step is to check timing.

The saga continues...

[4uall]

https://www.youtube.com/watch?v=3GwjfUFyY6M