[dvnr] help needed with Pazon install

[William F. Dudley Jr.]

Thanks to ALL who answered.

Rich Casey was first with the right answer.

The Sparx alternator has TWO marks, BDC and TDC.  So I had a 50%
chance of getting it right when I did the initial install.

I've since found the OTHER mark, at TDC, and set the Pazon up to that 
mark.  Tomorrow I'll try to start it, and assuming that's successful, 
time it with my light.

Here's a picture of the Sparx alternator:

https://www.accessnorton.com/NortonCommando/sparx-3-phase-alternator-does-this-look-right.11749/

Bill Dudley

On 4/16/19 6:18 PM, richard casey wrote:
> There are 2 timing marks on the rotor, one at TDC and the other at BDC. 
> Find TDC and paint or punch mark the TDC one and ignore the other one.
> 
> On Tue, Apr 16, 2019 at 6:09 PM William F. Dudley Jr. via DVNR 
> <dvnr at casano.com <mailto:dvnr at casano.com>> wrote:
> 
>     I'm changing the ignition on my 71 Commando from whatever it was that
>     was flaky to a new Pazon.
> 
>     I followed the directions, and I have done this before (the Pazon is
>     just like an old Boyer, same pickups on a circuit board, etc) and yet,
>     when I kick the bike over, all I get is an enormous pop out the air
>     filter.
> 
>     I have the Sparx 3 phase charging system on the bike, and a small AGM
>     battery that is in good shape.
> 
>     Questions:
> 
>     Is there only ONE timing mark on the alternator rotor?  What I think I
>     see is a raised boss about 1 cm wide, with a line scored at about the
>     middle of the raised boss.
> 
>     Is that scored line the timing mark, or is there some other mark I
>     should be looking for?
> 
>     The Pazon instructions say to turn the motor over until the timing mark
>     is at 32 or 28 degrees (they give both numbers and I don't know why),
>     and then to install the rotor on the cam shaft with the red dot visible
>     in the "anti-clockwise" window.
> 
>     I think I've done this, and yet, obviously, I've failed, since the bike
>     won't run.
> 
>     Thanks for your time.
>     -- 
>     Bill Dudley
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