[lightweight]

Finally warmed up outside again, so set up to go for a drive in my 74. Turned key on, fuel pump started, turned key further to start engine, got a brief click, then total silence. No pump, then tried lights, nothing electrical works at all. Battery checked and is good, fuses look good, wiring seems unchanged from good condition. After a few minutes, lights were available again; so turned key, all died again. This happened twice more; now nothing at all. Took off air cleaner; all looks well at starter. Any ideas?

 

[lightweight]

Appreciate the suggestions; thanks! Disconnected the battery; cleaned connections at the starter; with a long jumper wire, tested the connecting wire to the battery, which had continuity, very little resistance, and no connection to ground; cleaned the battery terminals; started tightening the positive terminal, which revealed that it was cracked. The picture may not show it clearly. Will take the RX7 support vehicle out to get another whenever it stops raining. Will post again if this is not the problem source.