Plenty of threads on here about this, essentially yes. Do your homework as its more than just manifolds etc even the camshaft sensor has a different connector plug as with most of the sensors on an early engine.Different front water pipe etc etc. Change the lot and you will have piece of mind it does not take that long whilst both engines are out. A few engine changes ago i put a 1.6 engine in a 147 and it was great till you really hit the gas then it threw out smoke.Firstly i thought it was piston rings but this didnt make sense as it didnt do it in the 146, turned out to be the inlet manifold gasket by the oil flow to the sensor for the variator.Ever since during changes ive ensured the inlet manifold gasket is new or almost perfect.
The new metal inlet gaskets seem pretty cack in my experience, and need additional sealing. The older composite-type, with their own sealant stuff, are better.
Also very worthwhile doing is removing the exhaust manifold studs and sealing them with loctite. They can pass oil into the exhaust, which gets a bit whiffy. Don't ask me how I know....! :lol:
Im not trying to alter the thread but why is it that when you remove one of the exhaust studs oil can come out, ive known it on two Alfa engines one being my Spider, sob sob i thought it was first the sign of a cracked head.
There's an oilway runs behind the top row (I think). Not sure if it's a sign that they've been overtightened in the past or what... Lock 'n seal fixes it
not if it gets a lump with a composite gasket it wont be.
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