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| Weavsvet | Heads are off...... | ||
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Senior Guru
 
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Here are a few pictures. Looks like there was something going on in the #1 cyl. I hope it was in the valve train...........
http://s274.photobucket.com/albums/jj ... T/Head%20swap%20pics%202/ |
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Posted on: 2010/5/31 13:13
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1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage |
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| pianoguy | Re: Heads are off...... | ||
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Guru Emeritus
 
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Ditto - hope someone who is good at reading piston tea leaves can chime in!
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Posted on: 2010/5/31 14:41
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1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey |
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| PeteK | Re: Heads are off...... | ||
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Moderator
 
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I would buy a cheap small block chevy head gasket, retorque the drivers side, and leakdown #1.
That does not look good. If you measure the valve and guide wear in that cylinder and it is good, I would be concerned. |
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Posted on: 2010/5/31 15:08
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"It was really on a pass until it came apart." "Yeah. They always are." |
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| Weavsvet | Re: Heads are off...... | ||
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Senior Guru
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Quote:
Thanks Pete, What kind of tool do I need to measure the guide with? Will a digital caliper work that measures inside dimensions work? If it will what is the max it can be larger than the valve stem? |
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Posted on: 2010/5/31 15:18
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1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage |
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| PeteK | Re: Heads are off...... | ||
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Moderator
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Quote:
It would involve a machine shop. They have a special tool to mic the guides. Someone with a ton of experience can also move the valve off the seal slightly, and give it the "wiggle test" to feel the wear. .0015 to .002 is typical valve guide clearance on a motor with some miles. |
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Posted on: 2010/5/31 15:24
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"It was really on a pass until it came apart." "Yeah. They always are." |
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| PeteK | Re: Heads are off...... | ||
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Moderator
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I would not spend a whole lot of time diagnosing the guides. A leakdown test is probably best. If the rings are leaking excessively, better to know now, than later.
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Posted on: 2010/5/31 15:45
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"It was really on a pass until it came apart." "Yeah. They always are." |
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| Weavsvet | Re: Heads are off...... | ||
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Senior Guru
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Guess I was having a bad day when I did this.........dummy!!!!
Remember back when I had all those problems after the cam install? I had put a test spring on the number 1 cylinder to use with the degree kit. I had to change the base for the spring so I took off the oil seal. Guess what, I evidently forgot to put it back on and misplaced it and forgot about it. I would think that would let enough oil into the cylinder to smoke up the top of that piston like that. Hopefully this was a self inflected wound and nothing else is wrong. I have no clue as to why you can't enlarge these pictures I put up here. I haven't moved or deleted anything. Sorry! You can go here to see it in my album http://s274.photobucket.com/albums/jj ... T/Head%20swap%20pics%202/ [IMG]http://i274.photobucket.com/albums/jj256/WEVSVET/Head%20swap%20pics%202/IMG_3145.jpg[/IMG] |
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Posted on: 2010/5/31 16:01
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1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage |
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| PeteK | Re: Heads are off...... | ||
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Moderator
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That is a good sign. Normal age (and wear) combined with a compromised oil seal can definately result in what you have. Looks like your luck is improving!
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Posted on: 2010/5/31 16:05
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"It was really on a pass until it came apart." "Yeah. They always are." |
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| bogus | Re: Heads are off...... | ||
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Grand Imperial Pooh-Bah
 
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Yea... that #1 did look messy, but I'm with Pete, you dodged an expensive bullet!
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Posted on: 2010/5/31 16:51
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| BrianCunningham | Re: Heads are off...... | ||
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Senior Guru
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nice progress
best of luck |
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Posted on: 2010/6/1 1:29
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Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com |
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| tpi421vett | Re: Heads are off...... | ||
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Registered Vendor
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Looking good
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Posted on: 2010/6/2 4:19
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AFR Dealer, can sell at prices too low to advertise. 801-953-6391 08 C6 LS3,3LT,Z51,A6,NPP 91 vette,450ci, AFR 220, miniram,FAST, Crane 252/260 solid roller, 200 shot nos, ZF6, 4 link, 9", DA corrected to 1300 ft 9.65@145.xx 450ci now with AFR 235... |
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