I don't see any mention of maintenance over the years. Sometimes I see such a machine and the owner has skipped all the usual work for years. Just last year one that they had even skipping oil changes for over 20 thousand miles. It was a very sad case. It needed all the usual work before it worked right. I'm not there to check on all it could be but from carb, gas supply system to ignition you have to catch up with the work and may just fix it. There are too many reasons for this but let me cover one area that paid off more than once. Ready?
Vacuum lines. At this age these get brittle and broken. It may work or not but I like to clear that off the list since lines are cheap. I just get the box of tubing and replace what breaks when I bent the line.
My daughter has a 93 Holden Barina, 1.3 lt manual with about 300k on the clock, and it will start time and time again at home but as soon as she takes it for a drive then turns it off it won't start again for another 5 to 10 minutes, I just don't want to spend anymore money on this car but can't afford another one, any ideas? RACQ said it was the battery, so bought a new battery, then they said it was the alternator then the starter so they obviously have no clue, any ideas would be greatly appreciated.