Alternator
Alternator
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Alternator replacement
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Alternator belt
You can change the alternator belt buy taking off the rear drivers side alloy and mud guard, removing the undertray will give no advantage, you will just need a good socket set.
Loosen 'A' pivot bolt and 'B' tensioner bolt, to allow the alternator to 'swing'
'C' on the diagram is the tensioner of the belt, loosen this to remove the belt.
Tension belt to the following on S2: For heater cars - one way deflection of 6-8mm under moderate finger pressure For AC cars - as previous but 9-10mm
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Alternator Heat Protection
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Sourcing
It is not recommended to purchase Chinese manufactured pattern replacement alternators for the Elise, such as those commonly advertised on ebay. They are not built to withstand sustained high revs and are guaranteed to fail prematurely. These include:
- Unipoint (ALT-4212)
Known good models include:
- Magneti Marelli (63321239)