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Topic: Valve seals

in Forum: C3 Engines


Valve seals

Posted: 3/22/05 8:17am Message 11 of 51
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MENTOR, OH - USA
Joined: 9/15/2003
Posts: 577
Vette(s): 1979 L-82, dark blue

those initials don't hurt as bad as my back.  

getting old really is a b****.




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Valve seals

Posted: 3/22/05 4:22pm Message 12 of 51
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Frederick, MD - USA
Joined: 2/20/2003
Posts: 548
Vette(s): Frederick County Corvette Club (Maryland) Tan 64 365 Hp Conv 4 sp Red 72 4 sp Conv ..running a '68 327 Blue 76 Coupe L 48 4 sp White 79 Coupe L 82 auto Silver 98 Conv, 6 sp 35th Anniv '88 vette

Gosh I have 3 sets of valve seals in my tool chest... (Studebaker/Packard)...that I will someday get around to installing...
Bought them last spring and still have not found the time...or the desire ... to spend a weekend in the garage installing them... The 76 is IN NEED... The 72 and 79 are starting to show me the signs


Just getting lazy... last winter was a bust...and this winter has not been any better.    the 76 is still up on the lift (just after Christmas) and the brake calibers are still sitting on the workbench...

April 1 is only a few days away...and I better get busy...

Bob Griffiths






Bob
64,72 & 98 Corvette Ragtops
76 & 79 & qa 88 ANC Corvette Coupes

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Valve seals

Posted: 3/22/05 5:25pm Message 13 of 51
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Gloucester, VA - USA
Joined: 1/29/2005
Posts: 1453
Vette(s): 1979 T-Top, Metallic Green ZZ4 350/355 hp 405 ft/lbs torque Dual Spal Fans 700R4 4 Spd O/D Transmission 2004 Z06 Commemorative Edition
What are "the signs" ?


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The Money Pit.... and my niece

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Valve seals

Posted: 3/23/05 8:43am Message 14 of 51
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MENTOR, OH - USA
Joined: 9/15/2003
Posts: 577
Vette(s): 1979 L-82, dark blue

[QUOTE=JimG]What are "the signs" ?[/QUOTE]

blue smoke when you start it up after sitting for a while.




Valve seals

Posted: 3/23/05 11:25am Message 15 of 51
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Frederick, MD - USA
Joined: 2/20/2003
Posts: 548
Vette(s): Frederick County Corvette Club (Maryland) Tan 64 365 Hp Conv 4 sp Red 72 4 sp Conv ..running a '68 327 Blue 76 Coupe L 48 4 sp White 79 Coupe L 82 auto Silver 98 Conv, 6 sp 35th Anniv '88 vette

my 76 will throw out smoke for a long time... like I can drive it about 1 mile before she quits... no more smoke after that even if I let is sit for 3-4 hours ....  Next morning...same routine...

My 72 now will smoke until drive it about a 1/4 mile... but it can sit overnight without smoking the next day... or if it does it only smokes for a few seconds...

Both cars are in NEED of the seals being replaced NOW...   The 79 on the other hand will stop smoking within seconds after I start her up...

Think I paid 16 bucks for a set of replacement seals... not expensive...just something I need..now have to find the time and energy to install....

BTW  I still see no signs of oil consumption... but then again I change
the oil every 1000 miles on all my cars except the 95 which goes
the entire year (5000 miles is the most I ever drove it in a year & and usually I do not drive it that much... on mobile one...

Bob





Bob
64,72 & 98 Corvette Ragtops
76 & 79 & qa 88 ANC Corvette Coupes

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Valve seals

Posted: 3/23/05 1:13pm Message 16 of 51
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Gloucester, VA - USA
Joined: 1/29/2005
Posts: 1453
Vette(s): 1979 T-Top, Metallic Green ZZ4 350/355 hp 405 ft/lbs torque Dual Spal Fans 700R4 4 Spd O/D Transmission 2004 Z06 Commemorative Edition

[QUOTE=Bob Griffiths]
The 79 on the other hand will stop smoking within seconds after I start her up...

[/QUOTE]

Mine does the same exact thing !


[QUOTE=Bob Griffiths]

BTW  I still see no signs of oil consumption...


[/QUOTE]

I don't see any either, that's why I'm confused I guess. It's not always blue smoke. I guess I'm just confused about this in general.

 

Jim

 




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The Money Pit.... and my niece

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Valve seals

Posted: 3/23/05 2:35pm Message 17 of 51
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CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!

Jim, if it's doing the same thing, you need the same thing.

If you only have some seals bad, and others okay (at this point) you could have some leakage depending on the position the engine is in when it stops.  So a sometime thing is not unusual.  It will be every time when the other seals fail, and they are not far behind.

Due to bad valve seals, you can also see blue smoke at times when under heavy acelleration.  At this point they are about gone.

If there is a lesser leakage, sometimes you will see a lesser amount of dark dirty grey smoke, instead of or just before the blue.




Valve seals

Posted: 3/24/05 4:53pm Message 18 of 51
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Gloucester, VA - USA
Joined: 1/29/2005
Posts: 1453
Vette(s): 1979 T-Top, Metallic Green ZZ4 350/355 hp 405 ft/lbs torque Dual Spal Fans 700R4 4 Spd O/D Transmission 2004 Z06 Commemorative Edition

 

 Aw Shucks ! 

  (Trying to be G-rated)

  I'm intimidated by inside the engine stuff.....




Lifetime Member #73

The Money Pit.... and my niece

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Valve seals

Posted: 3/24/05 5:12pm Message 19 of 51
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CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!
If you are not in a hurry, I will shoot some pictures when I do mine.  But that's a couple of months away.


Valve seals

Posted: 3/25/05 12:17pm Message 20 of 51
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Gloucester, VA - USA
Joined: 1/29/2005
Posts: 1453
Vette(s): 1979 T-Top, Metallic Green ZZ4 350/355 hp 405 ft/lbs torque Dual Spal Fans 700R4 4 Spd O/D Transmission 2004 Z06 Commemorative Edition

 

Cool, that would be great. Wish I could drive over and give you a hand.




Lifetime Member #73

The Money Pit.... and my niece

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in Forum: C3 Engines


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