Pertronix Problem

[Irvs]

You're really not having much luck with this pertronix from start to finish are ya Lucas.

Did you fit the ignitor to your distributor In situ or did you pull it out? Maybe your vacuum advance hose on the dissy has a leak or has come unattached inside the dissy? Did you regrease the governor weights under the breaker plate in the dissy (could they be sticking/not freely moving)?

I know they're simple things but hopefully we can solve this easily.

Good Luck
Irvs

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[taslucas]

Thanks mate, all good things to check. The thing is, it runs fine from start up for about 10 to 20 minutes then as the engine heats up it starts to miss..... the hotter the engine, the more it misses

[Irvs]

Yeah sounds like a doozy. Perhaps it's just the auto choke in the carbi compensating until it has warmed up? Then after its got to temp you start missing because it's running leaner? I think you can dial back the auto choke on the side of the carbi to prove if this is the case or not.

Also what gap did you set from the dissy shaft to the pertronix?

And before I go to much further did you get the lobe sensing or hall effect model (I think the pertronix 2 is hall effect only, you would've had to machine the shaft down.)

[taslucas]

Nah it's a real bad spark break down. There's no way the choke could compensate for it. And the auto choke normally goes off after 2 or so minutes, spark doesn't start missing for 10 to 15 minutes.
The gap is set with the spacer supplied.
Yeah I got the pertronix2 - hall effect.
Car was running fine before I touched anything!! Lol

Tap, crackle, pop

[Irvs]

Haha always the case with these things, have you had a chance to speak to pertronix also I vaguely remember a troubleshoot booklet coming with mine.

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[Irvs]

Try fitting your old spark plugs and leads back on and eliminate the new ones as the fault, just in case. What leads did you use, gas needs low ohm leads. Once again sorry if I'm stating the obvious just thinking aloud.

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[taslucas]

Try fitting your old spark plugs and leads back on and eliminate the new ones as the fault, just in case. What leads did you use, gas needs low ohm leads. Once again sorry if I'm stating the obvious just thinking aloud.

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I had the original leads and plugs on when I fitted the pertronix but because it was missing I first fitted new leads (as there was visible sparking under the bonnet at night!) but that didnt fix it so then I fitted new plugs which also made no improvement, so I then refitted my original coil (and ballast resistor) and still no difference! If the wiring was wrong then you'd think it would have the miss all along instead of slowly getting worse as the engine heats up.
Going to do the test tonight

[Irvs]

Bummer, your doing all the right fault finding, if you were in vic id let you come round and swap my pertronix into your dissy and see if that is the problem. Maybe go round your mates place with a slab and suggest the idea, haha. Short of that maybe put the points and condensor back in the dissy and see if it goes well, if it does then thats proof the pertronix is at fault.

[Robo]

Holly crap Batman.
Don't you just hate that.
Spend good money to get a faulty item.
lucky you are able to do the work yourself and not paying by the hr.
Sounds like replace pertronic II going by what you have done sofar.
reinstall point is the final step to confirm problem.
Chin up Bro.
Robo

[taslucas]

I did the test last night and as far as me and my mechanic mate could see, it showed that the module was faulty. The seller said that they will replace the item so ill be sending it off monday.