Author Topic: Coil to flywheel air gap tool? (Read 2837 times)

KilliansRedLeo · « **Reply #10 on:** February 09, 2014, 03:06:20 pm »

That is the correct one, there is another for spark plug gap. I use them but the pie/cake top is cheaper and you get to eat the pie!

eriksat1 · « **Reply #11 on:** February 11, 2014, 12:51:50 pm »

I don't know how critical the air gap is? But I finally remembered to check it out with my micrometer. I checked 11 different business cards and a doctors appointment card and they varied from .007" to .0165" That is a .0095" swing that is almost ten thousandths, that is a lot. I did finally find one business card that was dead nuts .012" I suggest you mic your air gap business card and find one that is at least close to what it should be. Like I said I mic'ed 11 business cards before I found "one" that was good. I also thought I would try a plastic drinking water bottle because it was rounded almost the same as the flywheel so I cut one and it mic'ed out at .014" I don't have a pie cover yet. I only found one business card that mic'ed out to .012"
I also cut open a aluminum Pepsi can it was .004" I wanted to try and find something that is already rounded like the curve of the flywheel.
If the book told you to gap your spark plug at .020" would you be ok if you set it to .017" or .023"?

eriksat1 · « **Reply #12 on:** February 11, 2014, 08:03:39 pm »

Ok I found a pie pan lid piece of plastic, cut out a section and mic'ed it in several spots it varied from .0115" to .014"
For $3.38 I am going to buy the tool.
Would you rather have a guy work on your saw, or even for your own saw, who uses a business card as a feeler gauge, or a guy who has the correct tool? I mean I found one business card out of 11 that is the right thickness but what happens when I set it down in some oil, or water? I know my wife calls me a perfectionist., but maybe that is why my stuff always runs.

jmester · « **Reply #13 on:** February 11, 2014, 08:33:00 pm »

You may be a perfectionist but the guys telling you what they use have been in thousands of saws and know what they are talking about if you want the tool then buy it, no need to put down there ideas or methods of achieving the same goal.

eriksat1 · « **Reply #14 on:** February 11, 2014, 08:53:05 pm »

Maybe they do, but I wouldn't promote it!
It makes you look like a schlock back yard mechanic, afraid to spend $4 for the correct tool..
In the old days you could set your points with a match book cover, about .032"
That is great in a pinch, but would a professional use a match book cover if he was doing 100's of them?

KilliansRedLeo · « **Reply #15 on:** February 11, 2014, 08:55:29 pm »

Or you could look in your toolbox and pull out your feeler gauge used to set points, I'm positive it has a 0.012 leaf you can use. OBTW the Husqvarna tool is opaque white plastic and tear/deform quite easily, so if buying that you should order about a dozen, they last about a month in a busy shop.

eriksat1 · « **Reply #16 on:** February 11, 2014, 09:00:25 pm »

I see I'm already off to a good start here making friends, lol. It might be tough to stretch a feeler gauge that far around both magnets at once, or yes a feeler gauge would be a lot better than a arbitrary business card thickness. At least the tool I bet has a uniform thickness and doesn't vary by .003"

KilliansRedLeo · « **Reply #17 on:** February 11, 2014, 09:11:13 pm »

OBTW the mean of 0.0115 and 0.014 is 0.01275, so you are looking at a variance of 7.5 ten thousandths of an inch most micrometers and calipers cannot even measure to that accuracy.

And by the way this 'schlock back yard mechanic' was trained by the Husqvarna factory in Sweden, and am a big believer in using the factory tools and methods.

Just for grins I am going to go get a new card out of my parts bin and measure it just so you know.

Fine'

eriksat1 · « **Reply #18 on:** February 11, 2014, 09:19:07 pm »

All I'm saying is there must be a reason they tell you to set it at .3mm = .012" I had to mic 11 business cards to find one that was even within a thousandth of .012" and the plastic pie lid varied by .002" within 2 inches apart.
If they told you to set your spark plug gap at .020" would you knowingly want to guess and set it at .017"?

jmester · « **Reply #19 on:** February 11, 2014, 09:24:11 pm »

You must be from A.S. To talk like that.

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Author Topic: Coil to flywheel air gap tool? (Read 2837 times)

KilliansRedLeo

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eriksat1

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jmester

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KilliansRedLeo

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KilliansRedLeo

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