So, i noticed, that car struggling start in recent days .... and i checked V on battery, while engine running ... 12.4 V.... wtf !!!! i have brand new alternator.
Then on running engine put tester on connector on alternator and " - ", ... 14.4 V ... Whats goin on ?? could somebody explain why alternator power not lead to battery ? Could be relay ? Which one ??
Mk1 punto, 1.2 8v.

Thanks

Is the alternator/batterry warning light on?

There are two alternator connections -- the main, big fat one, and a smaller one. Often the smaller one falls off (it's usually a lucar, so it's easy to do).

thanks for replay, found the problem, loose wire on starter motor bolt, which holds starter and alternator "+" wires.
Sorted