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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


 
 
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Old 06-30-2019, 06:24 PM   #1
240sxdrive
 
Join Date: Jun 2014
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Quest alternator in sr20det

Hey all,

I've researched using a Quest alternator on an sr20det and know you need to drill out the mounting holes and modify the tensioner mounting bracket or buy the Cody Ace mount.

I bought the 125 amp alternator for the 99-02 Quest and when comparing to the stock SR alternator, the pulley seems to stick out farther then the stock alternator pulley would be.

There's about a 3mm difference which I would think would be enough of a difference to cause issue. Did anyone compare the 2 alternators before installing?

In these pics, you can see the new alternator mounting tabs are higher, so when installed the pulley would be farther out. I could probably grind some of the inside tab closest to the pulley and use washers on the inside of the other tab to take up the difference. Both alternators have the same amount of space between the mounting holes.

Did anyone have to grind these mounting tabs? (not the tensioner mounting tab)






In these pics, the mounting holes are lined up and the pulley on the Quest alternator sticks out farther.





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