Stator out of phase... ?????

[sschefer]

Re: Stator out of phase... ?????

Is this one of those "Aha!" moments?

Curious,did the scope reveal that the phase (Polarity) of the trigger pulses where reversed?

And this affected the Bias which advanced the timing?

I haven't the opportunity to get my hands on a scope to look but I often suspected that even vs odd bank triggers are opposite phase, but never suspected a phase swap could provoke such havoc with timing.

Good thing you sorted it all out.

Very valuable lesson.

Well it wasn't a typical Aha moment until I finally gave in to believing what I was seeing. I didn't put it back on the scope today. I didn't see any point in it since I new it had to be 180 out of phase I just couldn't figure out where it was happening. I kept believing that the new trigger could not of been mis marked. I was just about ready to pull the trigger magnets and spin them 180 degrees when I decided to get on the phone. Thinking about it now, that probably would have fixed it. I think the trigger magnets are split upper is north/south lower is south/north They're wrapped in metal so you can't see it but a magnet will flip when it crosses the line. That should give you an idea of what my day of troubleshooting was like. Talk about grasping for straws

I guess its mostly just typical me. I should have been on the phone a lot sooner. I kept thinking that this can't be that difficult to find. The circuits just aren't all that complicated. In the end I guess that part was right. If I'd just believed what the tests showed I would have realized I figured it out two day's ago.

Yes, in more than one way, it was a valuable lesson.

 

[Dukedog]

Re: Stator out of phase... ?????

May be tha stator? Who knows, its a CDI.........

Rest my case

Hell Charlie! I've been around good, bad and GREAT Merc guys since 1964 have yet to see a DSO (Oscilloscope) in any of their too boxes. Mine included.........

 

[j_martin]

Re: Stator out of phase... ?????

Rest my case

Hell Charlie! I've been around good, bad and GREAT Merc guys since 1964 have yet to see a DSO (Oscilloscope) in any of their too boxes. Mine included.........

Count #2

 

[daveswaves]

Re: Stator out of phase... ?????

Musta been one of those triggers destined for Australia to compensate for the difference in spin down under.

 

[sschefer]

Re: Stator out of phase... ?????

Musta been one of those triggers destined for Australia to compensate for the difference in spin down under.

Good one Daveswaves.. I'll check the shipping label and see if it came from down under...

Regarding fancy tools. You guys are right. I found the problem without it I just didn't want to believe it. The bad part is that I didn't believe the scope either :redface: Now that's embarrising. The scope did verify the one bad switchbox and in a sense justified spending the money on the new switchboxes so I guess it all works out in the end.

It's goin on the hose in a couple of hours.. Gotta wait for the neighbors to wake up first.

Steve

 

[sschefer]

Re: Stator out of phase... ?????

Put the juice to her today. Had a couple of minor bugs. Engine runs excellent on the hose. Problem solved.