I am better versed on American cars and my 78 Fiat Spider is givingn me fits. It has ran fine for several years but developed a starter issue lately. I have installed a rebuilt starter with new solenoid and it started & ran fine until operating temp and then the tach goes to 0 and engine dies. It starts again and same thing, then next time it just clicks when key is turned. So I rock it in 5th gear and it starts & then does same thing again but then bendix gear starts to stay engaged to flywheel. Any ideas? Starter and flyw. Gear teeth are not in bad shape.