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> Valves on new rebuild, When to re-adjust
jeffdon
post Aug 21 2010, 11:21 AM
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Been driving with the new engine, and probably have all of an hour and a half behind the wheel. The engine has quite the clattering noise that I notice at idle, which I assume is the valves. I set (and re-set) them three times before it went in the car. My webcam 494 spec card showed to set both valves to .006. I went with .007, based on the common thinking that its better to be a little loose. I am running stock push rods.

Just climbed under the car thinking to check the valves, and am really not looking forward to this. I have set them with the engine in the car in the past, and cannot recall it being such a crappy job.

I guess my question boils down to this:

Should I put more road time on the car before adjusting the valves? Or am I better off letting things break in more before doing the adjust. I am thinking if the valves are making noise, they may be loose, which is way better than too tight, allthough the performance would be down.

Whats all ya'lls consensus?
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Mark Henry
post Aug 22 2010, 10:09 AM
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You might not have enough miles on it to check, lean plugs usually have a white electrode (the ceramic part). You need to drive for about 20min, turn off the key and coast to a stop and then check plugs. Do a Google search for the full instructions.

I now use a wideband to tune and jet, instant results and no pulling plugs.
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jeffdon
post Aug 22 2010, 10:23 AM
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QUOTE(Mark Henry @ Aug 22 2010, 09:09 AM) *

You might not have enough miles on it to check, lean plugs usually have a white electrode (the ceramic part). You need to drive for about 20min, turn off the key and coast to a stop and then check plugs. Do a Google search for the full instructions.

I now use a wideband to tune and jet, instant results and no pulling plugs.


I am really leaning towards getting a wideband also. Just keeping an eye open for deals.
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jeffdon
post Aug 22 2010, 04:17 PM
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QUOTE(jeffdon @ Aug 22 2010, 09:23 AM) *

QUOTE(Mark Henry @ Aug 22 2010, 09:09 AM) *

You might not have enough miles on it to check, lean plugs usually have a white electrode (the ceramic part). You need to drive for about 20min, turn off the key and coast to a stop and then check plugs. Do a Google search for the full instructions.

I now use a wideband to tune and jet, instant results and no pulling plugs.


I am really leaning towards getting a wideband also. Just keeping an eye open for deals.


Reset the valves (some had opened, some had tightened). One of the adjusters was hitting the valve cover too! Dimpled the cover a little.

Runs much better....strong enough to really feel the hesitation and dead spot in my webers! LOL!!
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