Author Topic: tune up  (Read 2710 times)

Offline the_legend_1981

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tune up
« on: March 12, 2009, 05:29:12 PM »
just tryin to get my engine to run a little smoother...i changed plugs, wires, dist cap, rotor, pcv, fuel filter...what else should i do? Just like to hear others input

Offline kfoz

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Re: tune up
« Reply #1 on: March 12, 2009, 05:58:41 PM »
Adjust timing. If the engine has many miles, it may need to be advanced a bit or retard it. That's my 2 cents! Maybe even a carb rebuild??
kfoz (kfoz@comcast.net)
'73 C20 4 Speed 2WD

Offline VileZambonie

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Re: tune up
« Reply #2 on: March 12, 2009, 06:26:41 PM »
What's it doing? Are the plugs properly gapped?
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Offline the_legend_1981

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Re: tune up
« Reply #3 on: March 12, 2009, 06:29:12 PM »
yeah i gapped them...it doesnt run rough anymore...just trying to get the idle right now...it's almost like it sticks after i use the pedal any little bit

Offline oldwhity

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Re: tune up
« Reply #4 on: March 12, 2009, 07:09:29 PM »
If you haven't yet, spray the carb down with cleaner and check the vacuum lines for cracks.
Rob G.
81 Chevy K20 4x4 LWB stepside
I enjoy long quiet walks..........in a junkyard!

Offline VileZambonie

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Re: tune up
« Reply #5 on: March 12, 2009, 07:11:56 PM »
Lube the throttle shaft and linkage on the carb
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Offline the_legend_1981

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Re: tune up
« Reply #6 on: March 12, 2009, 07:16:49 PM »
i'm getting oil through the breather up to the air cleaner, will this hurt my engine? will the pcv solve this? should i put an aftermarket breather on?
« Last Edit: March 12, 2009, 07:51:39 PM by the_legend_1981 »

Offline kfoz

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Re: tune up
« Reply #7 on: March 12, 2009, 08:29:49 PM »
You may also want to check your gas pedal. Lube it up with white lithium grease where it sits in the plastic cradle. It may be sticking there also. Loosen the 3 bolts where the pedal mounts up and SQUEEZE some in there.
kfoz (kfoz@comcast.net)
'73 C20 4 Speed 2WD

Offline 78 Chevyrado

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Re: tune up
« Reply #8 on: March 12, 2009, 09:30:35 PM »
I'd do the carb cleaner like mentioned above, just do not lube the throttle cable with anything.  it will make it gum up and gall the inner coating and will make it fail sooner.  check all your vacuum hoses and replace any that are obviously bad or slip on and off the port very easily.  if you have the valve in the exhaust (RH manifold between the manifold and exhaust pipe) make sure it moves freely. use the carb cleaner to check for intake manifold and carb leaks around the base.
Kenny

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