1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Timing Marks

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Mar 14, 2005 | 01:38 PM

#1

Zerojunk

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From: Browns Summit N.C.

Timing Marks

Anybody know the increments of the timing marks on a 1981 F-150 4.9?Too rusty to read.

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Mar 14, 2005 | 05:10 PM

#2

Dungeon_Master

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From: Connecticut

Each line represents 2º. 10º BTDC would be your timming setting. Thats what my 1982 4.9 is. If your looking to figure out were they start. its shown on this page
http://www.ddeboer.com/fordtruck/pag...cators_gif.htm

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Mar 14, 2005 | 09:36 PM

#3

Zerojunk

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From: Browns Summit N.C.

The six cylinders have the scale fixed and is referenced against a notch on the crankshaft pulley rather than the scale moving on the pulley referenced against a fixed pointer.I guess I can assume it's still 2 degree increments?

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Mar 14, 2005 | 09:41 PM

#4

Dungeon_Master

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From: Connecticut

yes its in 2 º increments

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49, 86, f150, position, timing

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