thats guys for all the feed back
to answer your questions

sLy1300, is it using a bit of water/coolant recently?
yeah it has i check it the other day just before i went 4 a drive and it was pretty low on coolant so i changed it yesterday and the water is brown and there was a bit of milky shit around the top and around the cap.

slide86, do a compression test to be 100% sure of whats going on in the engine
yeah i will go down 2 some one here me 2moz and get 1 done and let u guyz no what it does.

Nox, Is there any sort of smoke coming out the exhaust?
just went out and checked the colour just then and there's no colour 2 the smoke that is coming out, if theres any colour 2 it its more likey white.

i'll take the car down and get a compression test done 2moz so i can see what the hell is going on with my engine