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11-13-2010, 01:20 PM
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#1 |
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Registered User
Join Date: Nov 2008
Location: edmonton, alberta
Posts: 293
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Read my head and valves
Hey all,
What does this set of heads tell you about the combustion?
__________________
 76 Silverado, 2wd, long box, 350/th350, 3.42 posi, edelbrock performer 64cc heads, edelbrock 1405, 2101 intake, Hedman Headers, Comp Cam XE262 http://beerbreadbike.wordpress.com/ |
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11-13-2010, 02:09 PM
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#2 |
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Cruzzzn' Vet
Join Date: Jan 2005
Location: Porterville,Ca.
Posts: 1,918
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Re: Read my head and valves
That white area in the CC an indication of a leaky head gasket ?
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11-13-2010, 02:34 PM
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#3 |
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Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,948
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Re: Read my head and valves
Any pictures of the gasket itself? It looks like you were running lean.
__________________
Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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11-13-2010, 02:38 PM
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#4 |
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Registered User
Join Date: Nov 2008
Location: edmonton, alberta
Posts: 293
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Re: Read my head and valves
none of the gasket. didn't have any oil in the anti freeze when I changed it at the same time. I was told my valve guides are worn out on #5 & 6
__________________
76 Silverado, 2wd, long box, 350/th350, 3.42 posi, edelbrock performer 64cc heads, edelbrock 1405, 2101 intake, Hedman Headers, Comp Cam XE262 http://beerbreadbike.wordpress.com/ |
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11-13-2010, 05:19 PM
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#5 | |
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The One And Only !!!
Join Date: Jan 2007
Location: Hole in the woods Florida
Posts: 4,567
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Re: Read my head and valves
Quote:
I agree with cableguy..... A quick smack on the valve spring with a deep socket will pop the keepers out so you can remove the spring, Then see if the valve wiggles in the guide. It seems odd that only those two guides would be worn.....
__________________
93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz !  The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. "Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!
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11-13-2010, 07:02 PM
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#6 |
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Senior Member
 Join Date: Feb 2010
Location: Maumelle, AR
Posts: 478
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Re: Read my head and valves
Yeah, either lean condition or burning antifreeze.
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11-14-2010, 01:08 PM
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#7 |
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Registered User
Join Date: Nov 2008
Location: edmonton, alberta
Posts: 293
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Re: Read my head and valves
Yes, that's what I kept thinking so I put a new head gasket on when these went back in. I did do a valve movement test when the heads were out. There was very very small movement. I didn't have a dial indicator to measure the side to side play in the guide so I put them back in because a vacuum test before they came out didn't show any indication of sticky valves or valves leaking.
The # 5&6 plugs are still being ash fouled just like before the new head gasket when on so I'm thinking the valve guides are worn and or the heads are cracked. I guess I'll pull them and take them to a block shop for inspection. thx all
__________________
76 Silverado, 2wd, long box, 350/th350, 3.42 posi, edelbrock performer 64cc heads, edelbrock 1405, 2101 intake, Hedman Headers, Comp Cam XE262 http://beerbreadbike.wordpress.com/ |
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