What plug gap on 8N with a Pertronix?

Hi again all,

I have a (probably) '48 8N with front distributor, which was converted before it got to me to 12V and a Pertronix system.
It's been running fine, but I'm using it a lot for mowing, and the plugs are the same ones in it when I got it - 437's, which is what was recommended here as well. I figured I should get a new set and freshen them up, since I don't know how long these have been in.

What I'm wondering about it is the gap. I know with a standard points ignition, it's .025. Question is, do I still want .025 with the electronic ignition, or do I want a bigger gap? I have no instructions for the Pertronix at all. I'm going to try and search for that as well, but figured I'd ask here, since I'm sure a lot of these tractors are running this ignition.

As a follow up, it's running great right now, so should I leave well enough alone for the time being, or is it worth swapping the points out just because?

I also notice some sediment in the bottom of the glass bowl, which I know is why it's there, but how often do I need to clean that out? And is there a gasket I'll need to replace when I do it, or can I just pop it off and put it back on?

Thanks, guys.

If you have Pertronix system, then you do not have points. Same plug gap, it is just a different switch.

JMOR has you covered on the ignition. No points to change - same gap.

"I also notice some sediment in the bottom of the glass bowl, which I know is why it's there, but how often do I need to clean that out? And is there a gasket
I'll need to replace when I do it, or can I just pop it off and put it back on?"

I would clean out the sed bowl when there is noticeable rust in it. There is a gasket. I use the old one unless it leaks.

(quoted from post at 15:03:42 05/16/16) JMOR has you covered on the ignition. No points to change - same gap.

"I also notice some sediment in the bottom of the glass bowl, which I know is why it's there, but how often do I need to clean that out? And is there a gasket
I'll need to replace when I do it, or can I just pop it off and put it back on?"

I would clean out the sed bowl when there is noticeable rust in it. There is a gasket. I use the old one unless it leaks.

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Okay, cool. I'll probably clean that out. Ant tips for not getting gas everywhere when I pull the bowl off, aside from obviously having the gas shut off so I don't drain the tank?

Thanks again,

Sean

If you shut of the gas the only gas you will lose is what is in the bowl.

Thanks, all. I ordered a new gasket and screen, so, not knowing what's in there now and considering I want to mow with it tonight, I'll wait to do the swap/clean until those get here.

i just had my valve open with the glass bowl removed. don't worry, u won't get gas everywhere, it pours straight down in a consistent, well-behaved manner

(quoted from post at 16:09:29 05/16/16) If you shut of the gas the only gas you will lose is what is in the bowl.

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as someone who, more often than not, considers ebenezer scrooge overly generous, i poured it back in the tank - well, what didn't run down my arm when i first pulled the bowl off :evil:

How about shut the gas valve and let it run so it runs the fuel out of the bowl?

(quoted from post at 17:00:47 05/16/16) How about shut the gas valve and let it run so it runs the fuel out of the bowl?

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it only skims gas off the top of the sediment bowl. u can't empty the bowl like that.

You want to keep a spare bowl gasket on hand.Sometimes they will reseal. Sometimes they tear. I have four tractors and get one for
each.

(quoted from post at 19:40:08 05/16/16) You want to keep a spare bowl gasket on hand.Sometimes they will reseal. Sometimes they tear. I have four tractors and get one for
each.

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Yeah that seems like a good plan. I ordered a gasket, a screen, and for good measure, a spare fan belt.