Isolated alternators

Sv Garulfo

Dear Amelians,

The 12V engine alternator is supposed to be isolated from the engine. I could only find a replacement for that alternator that is not fitted with nylon pieces to provide that isolation and I'm struggling to find a temporary solution to achieve the isolation. 

1. What is the purpose of that isolation ? I suppose it is to protect the engine from corrosion?

2. What are the risks to temporarily mount the alternator without isolation ?

Thanks as always!

Amel 54 #122
Stuck in Union Island, St Vincent & Grenadines

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