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Reply to "Backfiring engine..."

Thanks guys for the input so far Cool

It definitely is not a sheared distributor pin – I had the distributor out to check that, and once out, I noticed how bad some parts were, replaced what was bad, and installed the Pertronix kit.

The carb had some rust, but I had the carb apart, completely cleaned it, tested whether all internal lines were open etc… Every single part of the carb seems to work as it should, everything that needs to move, is able to move freely – the electric choke works. Btw, the carb has an “Edelbrock” label, but has “Weber USA” stamped in it…lol The car came with this carb.

I get fuel – tested and cleaned the lines, tested the mech pump, installed an extra translucent filter, to be able to check cleanliness fuel, and supply – both are OK. When I simulate a pedal push, the carb squirts.

My later attempts yesterday were unsuccessful – now the engine doesn’t even wont to start… :-/

Pulled distributor wire coming from coil, and cranked the engine – I get sparks, but can’t really judge whether those were good solid sparks, or weak ones. Will check whether I get sparks at plug level.

Could try to run a jumper wire from battery to coil too, and see what happens.

One thing that keeps me puzzled – such a Pertronix kit has two wires, a black one that needs to be connected to the negative side of the coil, and a red one that needs to be connected to positive side of the coil. Now where is the negative energy supposed to come from, or is it the coil itself that “produces” a negative field? I left the ground wire of the distributor connected for what it is worth…

I’ve been reading about jumping timing chains too, and if that were the case, then the TC mark should be off when #1 is at TDC, correct? – could double check that too I guess…
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