Quote:
Originally Posted by ctaylor738
Well, you could pull the rocker/cam cover off and look at the cam lobes. But if the cam lobe or rocker arm were worn enough to cause the cylinder not to fire, there would be a huge amount of noise.
My suggestion for diagnosis:
1. Do a compression test to make sure that the valves are closing
2a. Swap the plug wire with a firing cylinder's
2b. Put a timing light on #1 and see if there is spark
3. Pull the injector out and test or swap it with another cylinder. Install the injector with a new seal.
4. Blow the line from the FD to the injector out with compressed air
5. Swap the line to #1 to a different position on the FD
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i dont see why a worn lobe would make noise.
could you kindly explain. i agree a worn rocker would rattle.
tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.
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