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

Vibration at 100MPH

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Old Dec 2, 2013 | 10:04 AM
  #21  
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[QUOTE

WTH are you doing driving at 100 MPH anyways?!

[/QUOTE]

He bought a Corvette. Not a Buick
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Old Dec 2, 2013 | 03:41 PM
  #22  
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Originally Posted by lt4obsesses
Not on the LT1 cars.
Doh!
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Old Dec 2, 2013 | 07:13 PM
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The date code = 0507 MAY 2007 FOR TIRE AGE the tires I will have checked tomorrow at a tire sales place yes I have some mechanical savy I have built several hot rods including right now working on a 1955 Dodge C3 short bed pickup with a custom built chassis from a dakota that I upgraded to 4 link suspension I have a peer who owns a body shop so yea I can igure out date codes and weather or not the Optispark is an issue ...I am looking for info on C4 corvettes as this is my first corvette and know the C4 had issues with ignition and other stuff so would like to get info from those who have experience with C4 corvettes thank you all for the in put
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Old Dec 2, 2013 | 07:58 PM
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Period?
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Old Dec 2, 2013 | 09:31 PM
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Originally Posted by RWC112
The date code = 0507 MAY 2007 FOR TIRE AGE the tires I will have checked tomorrow at a tire sales place yes I have some mechanical savy I have built several hot rods including right now working on a 1955 Dodge C3 short bed pickup with a custom built chassis from a dakota that I upgraded to 4 link suspension I have a peer who owns a body shop so yea I can igure out date codes and weather or not the Optispark is an issue ...I am looking for info on C4 corvettes as this is my first corvette and know the C4 had issues with ignition and other stuff so would like to get info from those who have experience with C4 corvettes thank you all for the in put
I would get new tires if I was planning any trips or running 90+ mph. The tires are almost 7 yrs old. And FYI, that date code 0507 represents the tires were manufactured the 5th week of 2007 not May 2007.
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Old Dec 2, 2013 | 10:00 PM
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7 year old tires. 100 MPH. Genius.
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Old Dec 2, 2013 | 10:27 PM
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Originally Posted by 89L98TPI
[QUOTE

WTH are you doing driving at 100 MPH anyways?!



He bought a Corvette. Not a Buick


I'm still trying to figure out the chalk and rock thing..
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Old Dec 3, 2013 | 09:55 AM
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I am doing the Tune up today will post results in how the effect will be
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Old Dec 3, 2013 | 10:00 AM
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Just drove from Ohio to Safford AZ in my mothers Buick that has the ecoboost 4 cyl was legal the whole way
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Old Dec 3, 2013 | 10:03 AM
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Originally Posted by JrRifleCoach
So rwc, you still haven't answered the question about the tire age.
I'm assuming you have limited mechanical knowledge.
So on the tire there is some little numbers that signify the week and year of manufacture.
If your tires are more than 5-6 years old, no matter how much tread is left, your playing with fire over 75.

I sure hope you don't end up like a lot of others on the C4 section that end up selling because they can no longer justify the maintenance costs.

Good Luck

BTW the center muffler is a CAT
hey maintance on a Farri or Lambo is way more expensive!
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Old Dec 3, 2013 | 12:58 PM
  #31  
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crawl under his car and put a plastic tie strap around his driveshaft. Sometimes the only way to get these jokers to back off is to give it back to them. I guarantee you he won't have a pair of cutters in his pocket and he'll have to listen to it all the way home.
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Old Dec 3, 2013 | 01:06 PM
  #32  
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Originally Posted by RWC112
Just drove from Ohio to Safford AZ in my mothers Buick that has the ecoboost 4 cyl was legal the whole way
A Buick with a ecoboost? Was that a buick swap?
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Old Dec 3, 2013 | 07:28 PM
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well started my tune up fortunately I had a new water pump as the old one was going out the bearings were showing no seal and several missing there is oil in the coolant and the water pump drive shaft is leaking so now new to buy the shaft and seal kit for front timing set found that at least the cap and rotor was replaced with a accel wires looked like original wire set I have a set of Taylor 8mm wires but no optispark distributor ends so looking for the ends on ebay hope to find some or I may be stuck paying 135.00 for a set of MSD wires problem is to repair the drive shaft I need to remove the intak manifold so now need those seals well I found plenty to fix the distributor was soaked in oil and I need to get the harmonic balancer off any one know if there is a special tool to get the HB off I removed the three bolts but can't see how to get a puller on it
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Old Dec 3, 2013 | 07:48 PM
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Originally Posted by JrRifleCoach
I sure hope you don't end up like a lot of others on the C4 section that end up selling because they can no longer justify the maintenance costs.
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Old Dec 8, 2013 | 02:34 PM
  #35  
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Originally Posted by kimmer
165 +


165 is not that hard to reach...... In my 95 vert. but stock LT1 with issues IDK....
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Old Dec 8, 2013 | 02:39 PM
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Originally Posted by RWC112
well started my tune up fortunately I had a new water pump as the old one was going out the bearings were showing no seal and several missing there is oil in the coolant and the water pump drive shaft is leaking so now new to buy the shaft and seal kit for front timing set found that at least the cap and rotor was replaced with a accel wires looked like original wire set I have a set of Taylor 8mm wires but no optispark distributor ends so looking for the ends on ebay hope to find some or I may be stuck paying 135.00 for a set of MSD wires problem is to repair the drive shaft I need to remove the intak manifold so now need those seals well I found plenty to fix the distributor was soaked in oil and I need to get the harmonic balancer off any one know if there is a special tool to get the HB off I removed the three bolts but can't see how to get a puller on it
A block of wood and BFH will remove a stuck damper from the hub.

place the wood behind the damper and sharply hit the wood with the BFH spin the engine a third of a rotation repeat the sharp blow on the wood repeat as needed.
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Old Dec 8, 2013 | 03:39 PM
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OP - I'd be worried about the oil in the coolant first. I'd pressure test the cooling system and do a compression test.
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Old Dec 8, 2013 | 06:21 PM
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yes a full flush and testing is in the agenda
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Old Dec 9, 2013 | 08:57 AM
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well got the HB off and found that the distributor was rusted inside so replaced the whole distributor as the optical sensor was corroded too much to swap out with the other distributor that doesn't have a Mitsubishi sensor anyway the issues with intermittent miss was most like the corrosion in the cap rotor and threw out the distributor if the new optispark fails I plan to just replace with a coil pack system I found that replaces the ECM... and doesn't use the optical trigger in the optispark

Last edited by RWC112; Dec 11, 2013 at 09:14 PM.
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