81 bronco 351 timing adjust w aftermarket pulley?balancer

If the timing chain has jumped so that it quit while going down the road, it is not going to run until repairs are made. Also, it is not usually possible to tell what kind of valve damage you may have w/o doing a compression test as the lifter will partially collapse allowing some clearance even though a valve may be bent. An engine that has jumped will have uniform low compression. There is no amount of adjusting the ignition timing to make it run if the timing chain is jumped. If you have not already screwed around with the timing, you can check timing with a light while someone cranks the engine for you. If the ignition timing is not off more than 5 deg or so, the timing chain may not be your problem unless you make it so.

Good luck Lugnut

Thanks for your input!!! I am ready to do what it takes, be it changing gears and timing chain. How do I know what damage was done to valves and lifters? My biggest problem is the timing with this aftermarket pulley/balancer that doesn't have any markings or numbers on it. How do I set the timing?? Thanks much

First, the timing scale was not on the damper on those IIRC. It is on the pointer plate. You can probably clean the grease off to see it. Next, I don't think you have done nearly enough diagnostic to condemn the timing chain yet. Failure of those at 112K miles was not common. The first things you need to determine is whether you have proper fuel and a properly timed spark going to it. W/O those, you can rebuilf the whole engine with no results other than further damage to your wallet. Contaminated fuel or a plugged filter can easily shut 'er down. The first thing you are going to need is the best service manual you can find for it and spend some time familiarizing yourself with what you have. Auto repair can be very damaging to your ego and wallet if you have no idea WTH you are doing.

Good luck Lugnut