Hi all,
I replaced the starter motor with one I purchased on Gumtree for $50. It worked fine when benched tested , worked fine after installation, then when to fire her up and park her she died.
I bit the bullet and grabbed a modern new starter motor. Now she works a treat. Thank you Diana for your help and advice.
Oh the original starter was completely knackered, the pintle spring was broken in two places and the insides were stuffed.
Cheers,
Mick