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Topic: Well, There's your problem

in Forum: C3 Engines

Well, There's your problem

Posted: 6/11/14 7:30am Message 1 of 8
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Ash Fork, AZ - USA
Joined: 4/18/2007
Posts: 1058
Vette(s): 1981 Red Interior White exterior
Took the valve cover off and found a little problem.  Guess roller rockers are in order.


Dave C..........My mantra: I can not be bought!!      Long and short term leases available.
In the words of Zora Arkus-Duntov "Is your seat belt fastened? Alright, Let's go"


Yeah, I know, Shut up Dave.
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Re: Well, There's your problem

Posted: 6/11/14 8:50am Message 2 of 8
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goldens bridge, NY - USA
Joined: 11/3/2003
Posts: 498
Vette(s): 1972 T-Top 350 auto, matching numbers,Blue, ac
Better than a blown rod? Were these new , or reinstalled when you had the engine work done? Hopefully it's a quick and cheap fix. Good luck and watch the back. Big Al



Re: Well, There's your problem

Posted: 6/11/14 9:10am Message 3 of 8
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Equinunk, PA - USA
Joined: 10/31/2007
Posts: 2465
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
Thumbs Up  So are larger valve covers.


Re: Well, There's your problem

Posted: 6/11/14 9:36am Message 4 of 8
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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
 Rock On, Wayne!!! Thumbs Up
Be sure to check the lifter to make sure it hasn't come too far out of the bore, and....when yo get it back together, leave the valve cover off and start it...make SURE all of the rockers are getting oil on them. It might make a small oil mess, but it's better than a friggin tow bill. That rocker could have failed for several reasons....fatigue, not hardened properly, too much lift/coil bind, or....no oil/lube. Check that pushrod for straightness, and that the hole in the middle is open all the way thru.
 Hope it's that simple of a fix! But it would explain the noise....and the poof of smoke.



Joel Adams
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Re: Well, There's your problem

Posted: 6/11/14 9:41am Message 5 of 8
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Ash Fork, AZ - USA
Joined: 4/18/2007
Posts: 1058
Vette(s): 1981 Red Interior White exterior

Al, this was a crate motor that was purchased about 4 yrs ago now.  Including this motor I've pulled 4 and put in 3.  This motor was put in for me buy someone that was, uh, not so good.  I don't blame him for this problem but you wouldn't believe some of the other boneheaded stuff.

I've got a set of valve covers in mind but WOWShocked are they pricey. Not sure if these will fit but they have tall ones as well.

Joel, with the way my back has been I'm going to send it out to have done.  Same place that did the alignment.  Sarge81 sent me to them and they're good.  Besides if they do something wrong I can always blame him!LOL


|UPDATED|6/11/2014 9:41:29 AM (AZT)|/UPDATED|



Dave C..........My mantra: I can not be bought!!      Long and short term leases available.
In the words of Zora Arkus-Duntov "Is your seat belt fastened? Alright, Let's go"


Yeah, I know, Shut up Dave.
Lifetime Member #192


Re: Well, There's your problem

Posted: 6/11/14 10:03am Message 6 of 8
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WEST SENECA, NY - USA
Joined: 12/3/2001
Posts: 2379
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.
Dave, if you do buy a set of roller rocker arms, please do not buy rocker arms by Proform. They are Chinese junk! I made the mistake years ago and they almost cost me an engine after they disintegrated. Buy something decent like Crane Golds or something along those lines. 

My preference has been American made Harland-Sharp rocker arms. I've been putting them in "LS" engines with great success. Big cams and spinning the engines to 7000 rpms with no failures. Like most roller rockers you will pickup some valve train noise. 




GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


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Re: Well, There's your problem

Posted: 6/11/14 10:22am Message 7 of 8
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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
dads2vette said:Besides if they do something wrong I can always blame him!LOL


Spoken like a typical customer....LOL



Joel Adams
C3VR Lifetime Member #56    

My Link


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             NCRS

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

Re: Well, There's your problem

Posted: 6/11/14 3:12pm Message 8 of 8
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Joined: 2/22/2011
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I had the same thing happen on my '73.  I did some more checking and found that the cam and entire valve train was pretty much wasted.  

Nice that it wasn't anything more serious!

John






1973 BB 4-Speed Coupe Project Car
2009 Z06 Mostly Stock

in Forum: C3 Engines


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