Question about 1999 Mazda MX-5 Miata

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Changing the alternator on 1999 miata

Took the tensioner bolt off and the bottom bolt but it won't come out because of the arm behind the bolt

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The alternator is held on by two bolts. The top bolt is part of the tensioner, which uses, thankfully, an old style bolt system to tension a separate alternator belt. Once you remove the top bolt the tensioner can be removed by sliding it towards the rear of the car through the slot it sits in. The bottom bolt has fallen prey to what I consider an engineering oversite. The bolt threads out towards the back of the engine, and because of this, you have to remove the stiffening arm that sits right behind this bolt. Fortunately, the stiffening arm is held on by three bolts, all of which are easy to get to. Once this arm is out of the way you can remove the bottom bolt.

Posted on May 01, 2009

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