Fake tank cover(coil/water pump and stator testing)

[Omega Man]

Ansimp...so all those yellow wires touching each other when the plug melts won't cause the stator to fail? :nea: This is the first time you've posted anything on any forum that I just don't believe. No Sir, I don't like it.

~O~

 

[Ansimp]

Omega all it does is reduce a phase out put. they are all positive and is there nothing to short to when you join positives together. Remember a short is a flow path to ground. When I do a high current stator test I take a phase pair and apply negative to one leg and positive to the other. If the windings of a phase fail and you have a short to ground then in most cases the corresponding diode in the rectifier will fail reducing output. The stators are dumb robust devices that may loose the lacquer insulation over time that may cause a short but in the majority of cases they don't fail. Good testing procedures would prove this. Have a look at Joe's posts with Hooch and you will see all the possible failures than can occur in the connections.

 

[dan filipi]

I don't buy what your saying ansimp.

Touching phase to phase is in fact a short just not to ground. Try doing that on relatively low voltage residential power you'll literally get an explosion. That is a phase to phase short. Much higher current yes but the same principal.

I can't say how long it would take to actually damage the stator coil insulation if the the outputs were shorting together but they would undoubtedly heat up. If that heat is enough to damage the insulation we don't know, but I would bet it is.
I pulled a stator out of an 81 motor, the insulation was charred and flaky. The wires had already been soldered so I don't know what the plug looked like but I highly doubt a winding gets charred like they were unless the outputs are shorted together.

 

[Ansimp]

Dan in all my experience they are damaged by shorting to ground. I don't known if I explained my high current test correctly but I dead short the phase with the full available current of my supply battery. I assume if I did it long enough it could damage the insulation on the windings as it is only a thin layer of varnish. The stator that you pulled out I would suggest that if you test it you will find there is a short between a phase and the stator core.

 

[dan filipi]

It was shorted all 3 to core but I believe that was a result of phase to phase shorting prior to me but it could very well have been insulation breakdown on one phase started it all, I couldn't say.
Have you ever tried touching phase to phase on a healthy stator while running? Would be interesting to know what actually does happen.

 

[Ansimp]

I will try and replicate this phase shorting scenario with an old automotive stator and rectifier and report my findings. :builder:
The thing to remember with these melted plugs it is the high resistance connection that generates the heat and melts the plug. I encounter many plugs that have nothing to do with phases and charging which have melted through heat generated by arcing through poor connections.

 

[AApple]

I wonder if this thread is a test to see just how many different discussions can be crammed into one thread....
From the original question about removing the shelter to get to the coils, to knocking noises, water pumps, and now to now testing stators? :headscratch:

hijacksml

• AApple
• Dec 13, 2011

:whip:

 

[Ansimp]

I guess we all get distracted, but I am sure once you got the tank shelter off you would discover knocking noises, water pump issues, stator faults and all sorts of things that a person would want fixed :doh:

 

[Omega Man]

OOPS Joel! One last question, pweeze? :blush:

Ansimp » Thu Jun 13, 2013 8:44 pm[/url]":20z04bf1]Omega all it does is reduce a phase out put. they are all positive and is there nothing to short to when you join positives together. Remember a short is a flow path to ground. When I do a high current stator test I take a phase pair and apply negative to one leg and positive to the other. If the windings of a phase fail and you have a short to ground then in most cases the corresponding diode in the rectifier will fail reducing output. The stators are dumb robust devices that may loose the lacquer insulation over time that may cause a short but in the majority of cases they don't fail. Good testing procedures would prove this. Have a look at Joe's posts with Hooch and you will see all the possible failures than can occur in the connections.

Well I know nothing about the principles being discussed here, but I've seen enough posts supporting the three wire conversion. Bike that have had it done don't have stator problems and ones with bad stators often have melted plugs.

My first Wing that I am certain the PO knew the stator was bad would shock my leg while in contact with the engine guard on the left side when using the highway pegs I installed. Is that the shorting to ground you guys are talking about? This was over 15 years ago so I knew nothing about Wings at the time especially the plug we are talking aboot.

~O~

 

[Ansimp]

Yes you would be the grounding point. :yes:

 

[mcgovern61]

What about the water pump??? .........Anybody checked the water pump????? :shock:

(Sorry, wrong thread!! I see that it was already hijacked!) :hihihi:

 

[1burthabutt]

Yup checked the water pump. Freebird pulled it apart and she was hitting pretty good. :shock: :crying: I think he has ordered a new one. I am really hoping this was the noise or at the least this and he is going to check the carbs.

 

[dan filipi]

Did it look loose like this one?
[video]https://www.youtube.com/watch?feature=player_embedded&v=VWOcToW3My8[/video]

 

[1burthabutt]

:shock: :shock: Wow! No it wasn't quite that bad. It did move pretty good. He was talking about taking some photos. I will let him do all of that. :mischief:

 

[1burthabutt]

:clapping: :clapping: :clapping: Guess what! Freebird is so hand with his tools :hihihi: :ahem: :whistling: :yahoo:

 

[1burthabutt]

so good with his.....

 

[backlander]

oops, I take it ya'll fixed the wing?

 

[1burthabutt]

:headscratch: Well yes and no. He put in a much needed new water pump. Synchronized the carbs, but still has a knock. It isn't as bad as it was, but still there. We have agreed she needs to have heart surgery over the winter months. I just wish she would quiet down until then. He needs something to keep him out of the house this winter anyway.

 

[joedrum]

sheesh ....

 

[1burthabutt]

How does one check the timing on a Goldwing? Freebird has been complaining of smelling old fuel (you know how it smells like varnish) I thought he was crazy. but know I'm smelling it too. We have been putting ATF in it every tank fill like we have read on here. What is going on? She seems to be running better, however just can't get rid of the knock. I think it is a fuel or timing issue. What do you think fellas? :shock: :headscratch: :nea: :doh: