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Ford 9N, 2N & 8N Discussion Forum
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Re: 8N51 Timing

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Author  [Modern View]
wore out

06-08-2020 17:53:52




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The "wear block" on the points isn't as "wide" as the point cam lobes, so wear would show up as a sort of wide "groove" in the face of the cam lobe with unworn cam profile "above" and/or "below" the worn area.

Have you looked closely at the #2 lobe?

I would suspect a worn distributor bushing and shaft, would cause the timing to "jump around" before I would suspect a worn cam lobe.

Could even have a bend to it, and flopping around.

Also, if the camshaft (for some reason) is moving fore and aft a bit that can cause "spark scatter" due to the angle-cut camshaft drive gears and angle-cut distributor drive gears. (Helical geartrins.)

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