petronix

[mike noble]

can anybody explain whats in the little box that fits to the dizzy base plate and how it works ?

[kapri]

Piskies in a hamster wheel ...it's magic.

[jsf55]

Oh yes ...electrickery :eek:

[mike noble]

lol, i'm sure mr nichols will know the answer.....

[mike noble]

its something to do with "hall effect ", how does this work ?

[martin]

Try here, www.pertronix.com

Martin

[plumpcars]

Speak to Mark at Pertronix Europe in Camberley. A really helpful guy.

[Morris460]

Don't drag me into it. I'm with the pixies theory...

[rem]

It is a small coil that senses the lobes of the distributor shaft as they pass by, so instead of opening the points they elastictronically trigger a pulse through the coil.



Actually, that's just BS - they really work on the principle of FM (second word is 'magic').

[mike noble]

Don't drag me into it. I'm with the pixies theory...
i cant beleive you dont know the answer!
right, wheres the techie big guns......... stu ?:D

[langysrodshop]

Andy gave a good explanation.


i cant beleive you dont know the answer!
right, wheres the techie big guns......... stu ?:D

[jsf55]

"Rotating cobalt magnets trigger a Hall Effect integrated circuit . ...no points to burn, ...no moving parts to wear out.
Epoxy molding makes our module impervious to dirt, oil, grease and moisture.
Fits entirely inside the distributor.
No "black box to clutter the engine compartment"

In laymans terms .. a pulse tells the coil when to fire or read through this
http://en.wikipedia.org/wiki/Hall_effect
i have one in the pop and it's very good :)

[mike noble]

Andy gave a good explanation.
yeh kind of, but it senses the magnetic ring on the shaft, if it was just a proximity switch it would make sense, its the hall effect thing that confuses me.......... normally paul would fire of a load of stuff that goes right over my head, must be the pain killers;)

[mike noble]

"Rotating cobalt magnets trigger a Hall Effect integrated circuit . ...no points to burn, ...no moving parts to wear out.
Epoxy molding makes our module impervious to dirt, oil, grease and moisture.
Fits entirely inside the distributor.
No "black box to clutter the engine compartment"

In laymans terms .. a pulse tells the coil when to fire or read through this
http://en.wikipedia.org/wiki/Hall_effect
i have one in the pop and it's very good :)
will research hall effect, its not even mine, im trying to sort a fault on a mates truck:)

[jsf55]

They either work oor they don't, check the side of the unit for a "bubble" thats when they've been shorted or overheated, also the smell when you open the distributor, fried electronics, quite acrid :(

[IanT]

Got my Pertronix from Retro Rockets, they have some troubleshooting and test stuff here:
http://www.vintageperformance.com/retrorockets/troubleshooting.htm

[kapri]

Pertronix tend to fail if left on for more than 15 minutes ( or so I'm told ,think it's in the fitting instructions) , the reason why I would never buy one.

[IanT]

Yes, if the ignition is left on and the magnet just happens to be in the wrong position.. I think they fixed that issue with the Ignitor II though.


Key is left on without the engine running with a standard Ignitor. If the engine happened to stop in a position analogous to points closed, the Ignitor will continue to try to charge the coil without the coil discharging resulting in excessive heat which can fry the Ignitor. If the engine happened to stop in a position analogous to points open, the Ignitor/coil circuit would be open, no current would flow, and there would be no damage to the electronics.

[mike noble]

Yes, if the ignition is left on and the magnet just happens to be in the wrong position.. I think they fixed that issue with the Ignitor II though.



yeh they did, been reading up a bit on it.
might get a kit for el bondo, would be cheaper than a new condenser every week....

[martin]

yeh they did, been reading up a bit on it.
might get a kit for el bondo, would be cheaper than a new condenser every week....

Get a matching coil as well.

[kapri]

Condenser is probably being overpowered as Martin says. It's a Rover isn't it Mike ? If so what year , and what voltage coil are you running?

[mike noble]

Condenser is probably being overpowered as Martin says. It's a Rover isn't it Mike ? If so what year , and what voltage coil are you running?
yeh kev rover, thats the thing with coils, they dont have a 9 or 12 on them, p6 motor.

[kapri]

If it's the one that came with a points engine then they are 12 volt BUT use a ballast resistor to drop it to 9 volt for normal running . They use an extra terminal from the starter motor to supply 12 volt direct to the coil when cranking.

So fitting a ballast resistor will probably cure it.

Voltage is normally stamped on the bottom of the coil.

[mike noble]

will have a look at whats on there, cant remember at the mo.
once the trucks done its going in the garage for a refresh , i know its a daft car but i really love the thing......