DATSUN 1200 UTE 1976 MODEL!

HELP BELOW YOU CAN SEE A CRACK IT IS AN INCH FROM THE TOP OF THE WINDSCREEN.

I AM NOT SURE HOW THIS OR WHY IT HAS HAPPEND?

I AM NO TSURE IF IT IS OLD BOG? OR LEAD HAS BEEN TAKEN OUT?
RUST?

HOW COULD I FIX THIS?

THANX ENY HELP APPRECIATED

the answer is u dont know untill u take the paint of. that crack could be the size of a 50c piece or as big as the roof. if u cant do any body work ypurself get someone to touch it up and fix it.

looks like bog coming away from a heavy rust situation...

i am going to agree with everyone, you wont know how bad the actual damage til you strip the paint back, and also in the picture there is a round bubble section where the crack goes upward, that i am fairly confidant in saying would be a rust bubble forming and as datsinner pointed out the bog has started to lift under the paint from a fairly intensive rust patch.

as already stated you can dodgey it up and "forget" its there or you can strip that section back and refix it. If you strip it back to fix that section you will get to see just how bad the rust is/was and then start to take corrective measures from there. Highly recommending what these others have already stated. better to be safe then sorry and not wait til possibly the whole roof gives in from rust.