I've had my a few no-start situations with my 1974 Spider with SPICA, the most recent one two weeks ago, and they were all ignition related: fouled plugs and arguably once, a distributor cap that needed a bit of cleaning.
Here are a few ignition things to try:
- Check spark plug wire arrangement for 1-3-4-2 firing order
- Check distributor cap
- Points or electronic ignition?
- Might be worth giving new plugs a go (consensus seems to be NGK, but there is also support for Champion)
Also, IIRC there are two fuel filters in in the SPICA system.
The hazard switch: If it's the same round one as on my 74, it is poorly engineered and breaks easily. Even worse is that replacements are absurdly expensive. It's held in place by a nut on the back; you have to remove the panel next to accelerator pedal to gain access. There is a thread here on the BB where one member described how to repair this switch. (I will try to find it later. If you pull it, please share the wire connections as I had to disable mine while on a car club drive and in my haste didn't record them.)
The AlfaBB is a great
resource and its knowledgable members are generous with their advice. I am sure that some of them will also provide suggestions.
Hey, thanks! I made a separate post about the hazard button and was linked to the post you were talking about, so I have it bookmarked now.
Iíve got a pretty bad cold right now, or else Iíd go out and take a photo of how itís wired up for you, as I have to take it out anyway. (I think perhaps Iíll try the toothpick trick first until I can get the engine running, as thatís my first priority)
The previous ownerís mechanic didnít seem to know what he was doing, but he left me 4 brand new plugs in the trunk, so maybe Iíll swap them out just for kicks. I pulled the ones in it now, and they were a little dark, but not powdery black like some Iíve seen.
You wouldnít happen to know what the gap is supposed to be on the plugs, would you? Also, if someone could tell me how many degrees the timing light is supposed to be set for, thatíd be pretty helpful too.
Either way, as soon as we get some decent weather here, the first order of business will be a good, thorough cleaning. Itís amazing how much debris and filth can accumulate in a few years, and nothingís worse than trying to work on an engine and hoping little shards of leaves and spiderweb donít fall into your engine.
So far, everyone hereís been pretty helpful and supportive, I think I like this place, haha