85 F15 - 300

Feb 04, 2004 2 Replies

I am trying to get this Truck running again. Several weeks ago it stopped running and I had a hard time getting to start. After digging around I found the Shear Pin on the Distributor had broken. It was replaced and everything was great, until...



Today, running down the highway, it just lost all compression and would barely run, it was extremely hot. We towed it in and let it sit overnight.



Went back today, pulled the distributor, just to check, everything looked fine, set it to TDC, patched up some wiring and it started right up and ran. Then, rev'd it up, it spit black smoke and died, now it will not start, almost sounds like the timing is way off.



Is it possible that it is jumping timing somehow?



Any ideas would be greatly appreciated.


Check timing chain Bob

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This is a bit confusing. Did it overheat and then die, or did you only notice it after it stopped. Seems like you would have noticed the temp gauge...It sounds like you overheated it to the point of stalling, but then again, I wonder about fuel flow...

I suppose, but the 300 has timing gears, not a chain. I'd almost be more suspect of the recently repaired distributor,pin, etc, than the timing gears. I wonder if your fuel supply is ok...Maybe you are running out of gas. On the other hand, make sure the carb is not flooding. MK

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