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Joined: Jan 2015
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'Bolter
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I guess my eyes are not as good as they use to be. When I shine the timing light into the window above the starter motor I am having a tough time identifying the timing mark.

Can anyone post a photo of what the timing mark looks like?

Thanks

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'Bolter
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The Timing mark is a small ball on the flywheel about the size of a BB. I had someone turn the motor by hand while I held my finger against the outside edge (flat surface) of the flywheel. As the wheel turns you will feel the BB. I then put a dab of white paint on the BB. You will be able to see the mark with the white paint.
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Bubba - Curmudgeon
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Nice, Dave. Thanks.

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I had in my head that the BB was always TDC. Great info.


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Pre 68 Dave, I found the mark this morning. It was the same as your second photo.

I put a little white paint on it and tomorrow I will check the timing with the light.

Thank you all for responding.

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You'll likely be able to advance the timing quite a bit past the ball & be OK. The timing was set up back then for a lot lower octane gas. I don't bother with the BB these days. I time to the fastest idle, retard a degree or two then fine tune using the octane selector. If it doesn't drag the starter or ping under load you're good to go.


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Originally Posted by Tiny
You'll likely be able to advance the timing quite a bit past the ball & be OK. The timing was set up back then for a lot lower octane gas. I don't bother with the BB these days. I time to the fastest idle, retard a degree or two then fine tune using the octane selector. If it doesn't drag the starter or ping under load you're good to go.

This morning before the sun got to bright, for the truck will not fit into the garage, I hooked up my dad's old snap on timing light it says 6v & 12v on the back end, not inductive lead. That timing light gives off the brightest light I ever saw from any other timing light. Hooked up the Tachometer.

As you said there was drag on the start up. Well with the "O" painted white I was able to set it right on.

I also have the octane selector at 0 degrees.

Now the engine starts up very fast and with no drag at all any more, idles smooth at 500 RPM.

So the carburetor rebuild and tune up are now done.

Last edited by 32vld; 06/19/2015 4:42 PM.

Moderated by  Phak1, Woogeroo 

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