What went wrong?, it was running great and then not at all Options

[Type 47]

so we put the original 62k engine back in that had not had the distributor removed. Adjusted the valves (again after we put about 10 miles on it) we rebuilt the Webbers and it fired up. We did some timing and tweaking on the carbs.

It ran OK but a little shy of perfect. I replaced the wires and it seemed to improve it but idled a little high around 1,200.

My son came over to work on it the next day, but I wasn't home. All of a sudden, it won't even run.

we swapped distributers (both 009's) with the parts car, then swapped points (adjusted to 0.016). no improvement.

tested spark to all four cylinders. I seems like it's really out of timing but we didn't change it much. (except for the fact that we took the distributor out)

my son says we have spark, too much fuel, and not enough air.

What do we do next?????

[brant]

Taking the carbs off will effect the linkage

Having unbalanced carb linkage can causing significant popping and back fire

It’s a systemic that requires each step to be correct

[Type 47]

Taking the carbs off will effect the linkage

Having unbalanced carb linkage can causing significant popping and back fire

It’s a systemic that requires each step to be correct

we did tighten up the linkage. It may be time to get a better one though.

[brant]

Taking the carbs off will effect the linkage

Having unbalanced carb linkage can causing significant popping and back fire

It’s a systemic that requires each step to be correct

we did tighten up the linkage. It may be time to get a better one though.

even a worn out linkage can be balanced... it just won't hold it well over time
balancing the linkage ensures both banks open the butterflies at exactly the same time
and does not create a lean condition (popping) on one bank...

after a good baseline balance is found
then fine tuning can be done with the carb balance screws