autoxcuda
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- Apr 6, 2007
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Forgot to add that the factory specs for this motor say34 degrees at 3500 RPM. Not sure exactly what that means though. I may be slightly ignorant when it comes to timing
It's specs say "10:1" with cast iron heads? Do you have any specs on the cam in the motor?
With a loud exhaust, bigger cam, and/or vehicle with interior noise, you may not be hearing the knocking while driving.
So have you ever checked to adjusted the timing on a vehicle? You need to buy a timing light and learn how to check timing. Unless you have a shop you want to pay to have it checked and tuned every 1-2 years. That is modified motor that will need more attention.
Never trust used older vehicles like that. Immediately take drums off and inspect brakes, lube chassis and inspect for wear, get under car and inspect everything, pull spark plugs, check cap/rotor, check timing, check voltage. Assume nothing.
A vehicle like that truck is not going to be perfect. And I'm sure you didn't pay perfect condition price for it. So it's just about being aware of what is going on.