So the question pressing is: Are all K series distributors the same (i'm replacing the Cap on my mine as corrosion and old age are taking their toll)?

 

My friend says yes.

Repco showed me 2 options. Nether of which where the same as the one on my car.

Your friend is very wrong. There are about 4 or 5 different ones including the electronic dizzy ones.

Is there a way to work out which one mine is? its on a 4k engine.

here are some photos

 

 

 

 

That's actually a 3k dizzy, could be why you can't get one that fits. ;)

... little did I know haha. Thank you heaps!

Does that effect performance in any way?

... little did I know haha. Thank you heaps!

Does that effect performance in any way?

 

There are a great many variables when it comes to distributors. Condition of the distributor being the biggest. The short answer is not likely.

Replaced both the Cap and rotor. Car is running better but still missing every so often, especially when i put my foot down.

will replace plugs next and see how that goes.

 

what else could cause a misfire?

3k dizzy would have points? if so did you adjust these?

 

If you haven't replaced them in a while, best to get some new points, they cost like $8.

good idea! I guess I'll do the plugs too while I'm at it!

So, I have replaced the leads, plugs, points, distributor cap and rotor. But the engine still miss-fires when i put my foot down.

any ideas?

OK- Things that wear out most often are points, condensor, plugs. Less often (last for years and years), rotor, dizzy cap, leads, coil and ballast resistor.

 

Points, did you set the gap with feeler gauges?

Did you set the timing with a timing light?

Did you replace the condensor as well?

Did you check the gaps on the new plugs?

 

If those are setup well then I would've measured the resistance of the leads, changed them if they weren't the same.

Then cleaned the dizzy cap, scraped off the oxidation on the electrodes inside, and sprayed it with CRC or WD40.

Cleaned the rotor and sanded the tip clean.

 

Which leaves the coil and ballast resistor, and the only way I can think of testing them is to replace them. I'd do the coil first, the ballasts are pretty trouble-free.

 

After that you find you were barking up the wrong tree completely, and the possum is in the carb! It depends on what sort of miss it is, but an electrical one is usually one cylinder at a time, a carb one is all cylinders momentarily. Maybe it goes lean when you boot it and it dies for a few milliseconds, just from dirt in the accelerator pump jet..

 

Try the coil next!

As alteezzaclub said check the work that you have done first & make sure the points are set up on the high part of the cam lobe in the distributor when you check the gap as a very wide point gap can definitely cause a miss fire in itself & also replace the condensor next ..

Ok corrections time. my friends said the points where fine. I said ill replace them anyway to be sure. turns out they where ʞ©$ɟed 5 ways to Sunday. Car runs fine now. just a touch rich.

 

Thank you for all your help. You have been beyond helpful.