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Originally Posted by Hank
If you do in fact have spark, it could be
Broken timing chain
Slipped timing
Wiped the lobes off the cam
Entire rocker arm shaft came loose or broke
You got a hole(s) in your piston(s)
What I would do is, pull the distributor cap off and turn over the engine. Make sure the rotor turns.
If it does, pop odd a valve cover. Turn the motor over and make sure the rocker arms move up and down.
If they do, do a compression test.
If you have fuel, spark and compression, you should have a running truck.
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If his engine turns over evenily, you can rull out the rocker arm idea,hole in a pistonand a broken timing chain all of which will cause an irratic starting peed of the engine. I don't think it is a lobe issue cause that is something that will come on gradually and should only cause a compression on a specific piston. I still like the slip timing idea caused by a tired timing chain.
Well this one will be an interesting one.
Mike
