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mr-mac

156 20V Alternator Swap

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Just done job and thought i'd post best way as nobody seemed to know.

 

Unbolt stabilizer bar at top of engine.

 

Front pipe off (1st cat back) aids access to bolts.

 

But of strong wood under sump and gearbox housing and jack nearish gearbox end of sump under the wood.

 

Front two engine mounts off and drop engine carefully in jack which will tilt while thing right forward.

 

Take off fuel filter and other things on firewall.

 

Lastly you will need to take off one of PAS pipes from steering rack (stiff one with sheath over pipe that runs from rack to pipe that leads to front of engine bay).

 

Unbolt alternator and it'll feed back then you'll be able to lift it right up back of enengine quite easily. Pop new one back in same way. (obv you'll need tensioner wheel off aux belt to aid fitting).

 

Pop everything back together (mount bolts are easy enough, jack engine and pop in, may need to lever a tiny bit to line bolts with holes but not too much).

 

John

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Other thing to keep in mind.

 

My aux belt looked ok and wasn't that old but got a real interesting rythmic chirp that sounded like a bearing.

 

It was belt, alternator on way out had obv overheated pulley so when stopped heat damaged, ever so slightly, the belt.. it shaved tiny bits of rubber of sides of V and compressed into bottom of V so it produced a rhythmic chirp just like a bearing.

 

Just keep in mind if you get a similar issue after an alternator change

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