initially one of the terminals which connects the negative and positive terminals of the two batteries was damaged so i replaced it as the big spark was damaging (melting terminals) of battery. but there was a spark as indicated hence i checked again on the satrter motor as there no cranking and discovered the earth terminal that connects to starter motor was loose and not connected. righrt now if i connect batteries there is no spark but there is indication power is there as buzzing sound is so irritating. horn is working but leyland worn crank at all. but will try batteries as you are suggesting. will be on it morning. its fully mechanical injection pump.

just realised that the small terminal chord (solunoid!) had actuall loosened or totaly detatched on the side of the starter. im made to understand it needs soldering. problem now is there the starter is held by 3 small bolts which are not budging at all cause of rust. have tried spraying DW40 and could not untighten them. any idea how i can sort this please.