Question about 1991 Ford F150
Yea I had the same problem. As long as you have the timing sight above the fly wheel you can pull the number one plug and tick crank the engine till you get the cylinder top dead center then mark the fly wheel with some thing (we used chalk) and then use a timing gun and use the mark for a reference. This will get you close and from there you can adjust it by ear. I found by doing slight adjustments and test driving it and check the acceleration and idle you can get it right.
Also the on-board computer plays a role in this so you might want to pull the negative battery cable and reset it so it will start at default then it can adjust it's self after a fer hours of running.
Yea it's amazing my fly wheel did not have any timing marks on it any where i scrubbed it and looked all over it ,and it's a stock fly wheel the timing sight is there just no timing marks.
Posted on Jan 13, 2013
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Posted on Jan 02, 2017
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