right the cambelt is well over due, its a 1993 1.8 zetec, are the tensioners common to fail or unknown to fail? and the guides? its done 140k and i dont know any history, should i just do the belt or is the kit worth the extra.

as well, with it on 140k what oil should i use? 5w30 still ok or should i use 10w40, and what mechanicly should i expect to fail at this mileage or is it just hit and miss.

oh also, what coolant does this take? the red stuff or blue?

 

get the complete cambelt kit mate! tensioners are known to fail! 5w30 should still be ok to use

 

Get a full cambelt kit fella, it's a false economy not to. I would also be tempted to do the water pump while you're there.

Stick some 5w30 in and yes, just the standard anti freeze/coolant.

 

I would at that mileage use 10W/40 personally, and do use it in a engine with less than 25,000 on it, the thin oils are marketed/used for economy reasons.
tabetha