hi all if u hav read the other threads u kno im havin problems wit a mk2 1.2 punto 8valver and i think we hav come to the conclusion she had fried her pistons rings or has piston damage now i kno wot im doing wen it comes to rebuilding them so my question is this i had a mk1 b4 and to look at them the engines are spot on so usin the wiring from my mk2 could u just drop in the the mk1 engine still using the mk2 inlet and exhaust manifolds as its the engine with no cam shaft sensor on top. thanx in advance

p.s anyone got a mk1 or mk2 1.2 8 valve engine they can sell and deliver too me plz ?

Is the inlet not different on the mk2 to accomodate the 4 Multi-point injectors, rather than the single injector on the throttle body for the mk1? Only got my mk1 with me at the moment, but my girlfriend has a mk2 that I can take a look at later for comparison.

if u swap teh mk1 metal inlet manifold, for teh mk2 plastic one will teh mk1 1.2 drop in teh mk2 does a mk1 cylinder head hav the threads in it to mount teh engine mount too surely the bottom ends are identical ? mine doent hav a cam sensor

personally i wouldnt do this, id pull the head off the existing engine and take a peek and repair that one or get a 2nd hand one thats correct for the car. Its much simpler, and you can recon the head while its off, which is generally a good thing to do once the car starts clocking up miles. Also keeps the original engine with the original car, and saves the hastle of finding another 1.

Reason being, is

1) its a mk1 engine, and your current one is from a mk2.. and although they may look identical.. manufacturers often revise/improve the engine.

2) 1 engine is a multipoint, 1 is a single point. so the fueling requirements of the engine would be completely different.. and you may even find the camshafts are different for different valve opening and closing times, and durations. Compression could even be different, and as pointed out manifolds are different so the studs / bolts maybe in different places.

3) if the fueling requirements are different the cars ecu will be trying to fuel the car as a multipoint engine when it was designed to run as a single point engine which can have consequences.

Its hard to say without physically comparing both engines side by side, and pulling out the camshafts to ensure they are in fact identical.

1 thing that would work.. assuming the blocks are actually identical and the stroke is the same.. is swap the head from a mk2 block to a mk1 block... then you would be in a better position to mount the multipoint injection system, and you know the cams are correct etc.