[stewie]

hey there,

Does engine start every time with jump?, if so starter should be fine.
Any funky nosies?
Try borrowing a batt from a friends motor you know is good/new and see if the car starts fine after that, if so looks like batt.

I had a prob with a few cars over the years were the batt alone just couldnt turn over the engine fast enough due to sticking start but with the jump it gave it the extra boost required to fire up.

also had prob with dirty dis. cap and rotor and batt just didnt have enough on its own, although ran lumpy on idle.

Also check growned to body from batt negative, engine to body with multimeter as seen that before, extra batt means more load can be pulled and allow power to Jump around a bad earth.

get back to us, there is a few things to go through, out off my workshop at present but back tomorrow.

Dont relay on voltage as it could be fine but its the amps that are require to crank motor over, load testing batt is better but need equiptment.

Hope above is of use
Stewie
Scotland