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Topic: This is not right

in Forum: C3 Engines

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This is not right

Posted: 4/20/13 3:20pm Message 1 of 4
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tinbender
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edgwood, MD - USA
Joined: 11/1/2007
Posts: 736
Vette(s): 1975 convertible,with the hard top and power streering.it a 350 L48 with auto trans. the color is light blue.
Took out the vette today and it runs rough. This is because I have to change the plugs and wires. What got me concerned is at 60 mph my tachometer is reading 6500 rpm ( hope I said that right) I think that that rpm is high .... I right about that. Rick.


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Re: This is not right

Posted: 4/20/13 7:02pm Message 2 of 4
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Jaws79
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Sykesville, MD - USA
Joined: 4/27/2008
Posts: 4239
Vette(s): 1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops
That has to be a problem with the tach, Rick, unless you're staying in first gear! Mine at 70 is about 3500. The engine would be screaming at that RPM! Does yours have the mechanical or electronic tach?
 
Barry 
 
 Ermm


|UPDATED|4/20/2013 7:02:38 PM (AZT)|/UPDATED|



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Re: This is not right

Posted: 4/21/13 7:10am Message 3 of 4
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Shocked 6500 rpm in high gear would be more like 120mph!!Shocked

LOL
Chances are the tach filter is goofing up, or the tach itself. How does it act when you start it up? Does it stick in one spot, fluctuate, or whut?



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Re: This is not right

Posted: 4/21/13 1:28pm Message 4 of 4
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dskopp
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Oak Creek, WI - USA
Joined: 5/21/2008
Posts: 1965
Vette(s): 1981 Great White Shark. Red Interior, 350/190 hp. PS, PB (SS), A/C CC, T-Tops. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vettes Car Club. 175,000 Original miles!! Now own a 1998 C-5!
Adams' Apple said: Shocked 6500 rpm in high gear would be more like 120mph!!Shocked

LOL
Chances are the tach filter is goofing up, or the tach itself. How does it act when you start it up? Does it stick in one spot, fluctuate, or whut?


I agree with Mr. Adams.  Sumpin is "goofy"!  At 6500 rpm, the engine should be "screaming" at ya!!!!


     



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in Forum: C3 Engines


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