Alternator Pivot Bolt

[XCones First Gear Find all posts View Profile Close XCones]

Well, was at Road Atlanta this last weekend and seems along with my left rear wheel bearing going out, my Alternator Pivot bolt wiggled itself all the way out as well. Anybody know what size and length it is? Could probably experiment and figure that out but thought someone might know off the top of their head.

Also, got the car Dynoed for Time Trials re-classing and was putting out 135hp/115tq at the wheel right at 7k on stock injectors and fuel pump with the Jackson Racing supercharger, so happy about that. Got a set of red NB1s going to install soon to see if that helps cause the AFRs are pretty lean at WOT.

[iscariot Probably Should Be Working Find all posts View Profile Close iscariot]

https://forum.miata.net/vb/showthread.php?p=8194692

m10x1.25x100 - However, I have had a rebuilt alternator that came with a different thread pitch. Not sure if it's a NA6/NA8 difference.

[miatastuff Lives On MX5Atlanta.com Find all posts View Profile Close miatastuff]

I have the bolt in Suwanee as needed.

[kung fu jesus Probably Should Be Working Find all posts View Profile Close kung fu jesus]

Have had a few occasions in endurance racing where that pivot bolt decides it's had enough of that crap and left. I drilled out the threads, used a different bolt and a lock nut. It worked fine and needed less time to replace during a race. Flipping the bolt around also cleared the additional oil plumbing behind it, used with a heat exchanger. I don't know why exactly, but NB alternators don't like racing environments. They seem to fail far more than NAs.

[amaff Lives On MX5Atlanta.com Find all posts View Profile Close amaff]

Have had a few occasions in endurance racing where that pivot bolt decides it's had enough of that crap and left. I drilled out the threads, used a different bolt and a lock nut. It worked fine and needed less time to replace during a race. Flipping the bolt around also cleared the additional oil plumbing behind it, used with a heat exchanger. I don't know why exactly, but NB alternators don't like racing environments. They seem to fail far more than NAs.

So, bolt goes in from the front, with a nut on it then? I may need to try that :)

[XCones First Gear Find all posts View Profile Close XCones]

Thanks for the offer though got a spare power steering bolt and used it for the time being.