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Forum: C3 Engines, Driveline and Handling

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Posted: 7/7/06 1:43pmMessage 11 of 23
j
jackmoore
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Joined: 7/12/2004
Posts: 38

I agree that it sounds like a stuck intake valve in #7.  Pull the valve cover and check that rocker arm.  roll the motor over by hand and check the operation of rocker arm assembly, and if the intake and exhaust valves on # 7 function properly. 

By the way, the guy up top got it before I did.

Jack

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Posted: 7/7/06 2:19pmMessage 12 of 23
r
ranger3
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North Charleston, SC - USA
Joined: 3/20/2004
Posts: 4208
Vette(s): 1975 L48 AT AC T-top
I'm already a gold member but I'm going with a stuck intake valve or broken rocker.
Scott
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Posted: 7/7/06 5:28pmMessage 13 of 23
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22720
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
Jim, are you sure it's oil in the pipes?

Joel Adams
C3VR Lifetime Member #56    
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

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Posted: 7/7/06 6:20pmMessage 14 of 23
r
rearn2go72
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Bladenboro, NC - USA
Joined: 1/22/2006
Posts: 1058
Vette(s): 1972 conv., sunfire yellow, blk interior, blk vinyl and convertible top. Off frame restoration with American Speed 383 stroker engine producing 500hp plus a 200hp NOS system. MSD ignition. Hooker super competition headers with chambered exhaust.

[QUOTE=Adams' Apple]Jim, are you sure it's oil in the pipes? [/QUOTE]

OK Joel...your question is in the present tense.  Since the problem has been found and corrected, I will say this....everyone that looked at it said it was oil.

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Posted: 7/7/06 9:54pmMessage 15 of 23
s
smoke-m
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baytown, TX - USA
Joined: 4/21/2004
Posts: 160
Vette(s): 1979 maui blue/doe skin, fuel injected 383, 6-speed manual, hooker sidepipes, 3.90 gear

cracked head on #7?

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Posted: 7/8/06 12:24amMessage 16 of 23
B
BelgiumBarry
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Maldegem, Belgium
Joined: 1/5/2006
Posts: 774
Vette(s): 350/350 T-top 1970 Cortez silver -blue interior

have also already made the "mistake" , thinking it was oil when water cleans a fouled exhaust.But ofcourse that drys up with only some carbon dust left , oil doesn't. 

 

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Posted: 7/8/06 7:52pmMessage 17 of 23
r
rearn2go72
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Bladenboro, NC - USA
Joined: 1/22/2006
Posts: 1058
Vette(s): 1972 conv., sunfire yellow, blk interior, blk vinyl and convertible top. Off frame restoration with American Speed 383 stroker engine producing 500hp plus a 200hp NOS system. MSD ignition. Hooker super competition headers with chambered exhaust.

Ok guys, it appears that Jackmoore was the first nongold or lifetime member to answer correctly.

The  problem was a broken rocker arm stud. What appeared to be oil all over the back of the car and in the exhaust was actually raw gas mixed with carbon.

You can't imagine what a relief it was to hear that it was only a rocker arm stud. Cost of repair...stud $3.40...labor $75.

Thanks to all who responded. Has anyone else ever had the same problem, other than Norbert and myself? 

 

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Posted: 7/8/06 8:25pmMessage 18 of 23
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22720
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
[QUOTE=Adams' Apple] I have seen occasions where the intake valve was not opening, [/QUOTE]

I toll ya so! Jes 'cause it wasn't specifically a rocker arm stud....geeezz!!

Actually, what threw everyone is the "oil" part. If I think it's got oil comming out the exhaust, then that's what I would focus on. Mo better info would have helped
Don't matter..ya gotter fixed!!
Congrats to "Jackmoore"!!

btw...I already knew the answer, and that it was fixed...!

Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

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Posted: 7/12/06 2:24pmMessage 19 of 23
j
jackmoore
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I am delighted.  Both with the outcome, and with the membership!

Way cool.

Jack

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Posted: 7/12/06 7:50pmMessage 20 of 23
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22720
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

Congrats, Jack!!

Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

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