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Topic: Valve tapping

in Forum: C3 Engines


Valve tapping

Posted: 9/26/04 6:13am Message 1 of 3
Former Member
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Phoenix, MD - USA
Joined: 11/23/2003
Posts: 57
Vette(s): 82 Silver/Gray with 80k miles, rear 275/60/15,
my 82 with 82k miles seems to have the valves tapping more these days. is this just in need of setting the timing or something else?

mark v


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Valve tapping

Posted: 9/26/04 1:51pm Message 2 of 3
Former Member
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Welch, MN - USA
Joined: 7/18/2003
Posts: 201
Vette(s): 1974 Black 454 Stingray coupe, turbo 400 tranny, barry grant 750 carb, hooker super competition headers, moves along!
this happened on my car, you will either need to have someone look at it, or you can pull of the valve covers and adjust the valves, this is not difficult. Let us know what happens, or if you need more explanation.


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Valve tapping

Posted: 10/4/04 6:28pm Message 3 of 3
Former Member
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CONCORD, MA - USA
Joined: 6/12/2002
Posts: 185
Vette(s): 78 Silver Anniversary (2 Tone) L82 auto loaded
Hi Mark
With that kind of milage it is time to adjust the valves and replace the valve cover gaskets.If the oil has'nt
been changed often,or the car is'nt run hard,you may have stickey lifters. To make sure,dump a quart of Marvel Mystery Oil in the oil,go drive it a couple of hundred miles,change the oil and adjust the valves.
Proper valve adjustment smoothes out the idle and gives you better throtle response.
Something else to keep in mind is that as the miles pile up the timing chain stretches,retarding cam timing.Even
2 degrees of negitive cam timing can make the engine sluggish with a lack of power,throtle response and poor
gas mileage.
Steve
|wavey|


in Forum: C3 Engines


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