C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

First Tune-Up On Corvette Ever?

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Old Mar 28, 2011 | 10:10 PM
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Default First Tune-Up On Corvette Ever?

I have a 94 vette and it has 87,xxx miles on it. I believe there is a chance it has never had a tune up(or atleast it has the same factory wires). It was in rough condition when I got it...The motor runs good it makes a little lifter noise at start up (goes away after warm up). For how much the shop is charging me to do the tune-up I want to make sure I change everything that needs to be fixed and be done with it. The opti-spark seems to be fine should I change it any way and what about the water pump and timing chain.
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Old Mar 28, 2011 | 10:42 PM
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Your taking it to a shop for a tune-up? It would be much cheaper if you learn to do it yourself. Maybe a forum member who lives close would be willing to help you. No need to change the opti, wp, or timing chain unless they're giving you problems. There are methods to check timing chain wear, but with that mileage I don't think it's necesary. About the lifter noise, does it happen only for a few seconds until it builds up oil pressure or until the engine gets warm?

Last edited by tehcarguy; Mar 28, 2011 at 10:44 PM.
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Old Mar 29, 2011 | 12:03 AM
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When the engine warms up...
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Old Mar 29, 2011 | 10:25 AM
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I'm out of town the next few weeks - a tune up on an LT1 is basically plugs and maybe wires.

Come out to Jim Ellis Chevrolet on April 16 for the local Corvette Car show - its $25 the day of the show and the WHOLE registration fee goes to Childrens Health Care of Atlanta.
Show runs from 10 AM - 2 PM, I'll be there!
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Old Mar 29, 2011 | 12:39 PM
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The PCM compensates for wear. If fueling is correct, you will gain nothing with the typical tuneup. Better to scan it to see what it's doing. The lifter noise is a different issue, though for some GM's - notably the sixes, it was typical (according to GM) and covered by several Service Bulletins which essentially said there was no fix. Hard to believe that so you I'd check compression, make sure the correct oil is in it.
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Old Mar 29, 2011 | 12:50 PM
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Originally Posted by JDM23
The opti-spark seems to be fine should I change it any way and what about the water pump and timing chain.
As the saying goes...if it works don't fix it. Timing chains don't generally need to be replaced except on high mileage vehicles as they stretch, but don't break like belts in Hondas do! And I'm talking +150K mileage or more vehicles.

I would just look at your owners manual for maintenance recommendations and go by that.
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Old Mar 30, 2011 | 03:28 PM
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Originally Posted by jaa1992
I'm out of town the next few weeks - a tune up on an LT1 is basically plugs and maybe wires.

Come out to Jim Ellis Chevrolet on April 16 for the local Corvette Car show - its $25 the day of the show and the WHOLE registration fee goes to Childrens Health Care of Atlanta.
Show runs from 10 AM - 2 PM, I'll be there!
Thank you guys for being so helpful. After looking at some write-ups on this site I think I believe I can handle atleast the spark plugs.If no improvement on to the bigger stuff.
Jaa I would be a little nervous about going to the show they might think I'm coming to crash the party. I'm 24 years old
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Old Mar 30, 2011 | 05:50 PM
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Originally Posted by JDM23
Thank you guys for being so helpful. After looking at some write-ups on this site I think I believe I can handle atleast the spark plugs.If no improvement on to the bigger stuff.
Jaa I would be a little nervous about going to the show they might think I'm coming to crash the party. I'm 24 years old
I wonder what they would say to me, I'm only 17!
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Old Mar 30, 2011 | 06:22 PM
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Originally Posted by JDM23
Thank you guys for being so helpful. After looking at some write-ups on this site I think I believe I can handle atleast the spark plugs.If no improvement on to the bigger stuff.
Jaa I would be a little nervous about going to the show they might think I'm coming to crash the party. I'm 24 years old
Nothing wrong with that I started on my Corvette at 26 I'd recommend changing the fuel filter too.
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Old Mar 30, 2011 | 06:50 PM
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Originally Posted by JDM23
Thank you guys for being so helpful. After looking at some write-ups on this site I think I believe I can handle atleast the spark plugs.If no improvement on to the bigger stuff.
Jaa I would be a little nervous about going to the show they might think I'm coming to crash the party. I'm 24 years old
Uhh, the only thing I would be worried about is the sales guys trying to sell you a new Corvette!

The more corvettes the merrier - If you don't come I may wind up being the only C4 I plan to put the car on the trailer (its mostly a track car now) and hose it down Friday and drag it up there early on Saturday.
Lots of C3, C5 & C6 show up. A couple years ago we had 6 1963's and that didn't count the 63 race car!
Ages of participants range from teenagers to old farts.
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Old Apr 3, 2011 | 05:22 PM
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Anyone know of any write-ups on changing the plugs? I'm having a hard time on the drivers side and I guess the some advice on the passenger.

Last edited by JDM23; Apr 3, 2011 at 05:33 PM.
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