a 1.4 Mk3 with a 4 speed box? is it modded? must be, the cambelt going is really a whole engine job, pistons, valves,headers, possibly cylinders,pullys too, head could be warped i suppose doubt it though, if your up for it unless you really, really know what your doing i'd take it to a specialist modding garage, for the labour it will cost and the guarantee it will give the pros will outweigh the cons especially as it is going to cost enough just to sort the engine, which i am hoping is the 8v otherwise the labour will be probably more than 2 brand new mk3 engines! This is why the rule, new decent quality(dealer if poss!) cambelt every 50k or so and you should be ok is a good one to live by, buy a second hand car and have no cambelt history, if you value the car, do it anyway. As for the box which is confusing a 4 speed would probably not hack it neither would the clutch if you were planning on changing that or not as the pressure would be, i would say to heavy anyway. your quite likely to rip your driveshafts to bits too if they are worn at all and dont expect the fuel pump( if its in the tank not too sure) to be up to it either. in a perfect world though yeah with a 4 speed box it would go like the clappers.
