Alternator mounting studs (1964 N15CS)

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Alternator mounting studs (1964 N15CS)

Postby jack clegg » Tue Apr 23, 2019 10:38 pm

Alternator has packed up. Upon dismantling, I find that the three mounting studs are 3/16ths & the holes in the stator are 1/4 inch. Are these studs correct? I expected to find 1/4 inch shouldered studs which would fit the stator holes snugly. Is this a previous owners bodge to get some adjustment in the stator/rotor air gap?
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Re: Alternator mounting studs (1964 N15CS)

Postby robcurrie » Wed Apr 24, 2019 4:06 am

The stator is located by it's outer diameter in a recess in the primary drive cover. This cover in turn is located by two dowel pins.

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Re: Alternator mounting studs (1964 N15CS)

Postby ajscomboman » Wed Apr 24, 2019 6:54 am

jack clegg wrote:Alternator has packed up. Upon dismantling, I find that the three mounting studs are 3/16ths & the holes in the stator are 1/4 inch. Are these studs correct? I expected to find 1/4 inch shouldered studs which would fit the stator holes snugly. Is this a previous owners bodge to get some adjustment in the stator/rotor air gap?


Nope not a bodge. On the later models the reduced studs were used to allow the air gap to be set.

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Re: Alternator mounting studs (1964 N15CS)

Postby jack clegg » Wed Apr 24, 2019 11:02 am

Thanks you Gents. So I presume it's tape round the rotor, fit outer case with stator nipped up, hope rotor centralises stator, remove case & fully tighten stator?
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Re: Alternator mounting studs (1964 N15CS)

Postby ajscomboman » Wed Apr 24, 2019 3:41 pm

jack clegg wrote:Thanks you Gents. So I presume it's tape round the rotor, fit outer case with stator nipped up, hope rotor centralises stator, remove case & fully tighten stator?


Yep that's how I centralise mine.

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