C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

heads.....need quick help

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Old Apr 5, 2008 | 01:28 PM
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Default heads.....need quick help

I have a broken spring cup in my heads. I have removed the spring.......now how do I get the oil seal out to replace the cup??

TIA>

jeff
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Old Apr 5, 2008 | 02:22 PM
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Just use a pair of pliers and pull it off. I would replace with a new seal.
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Old Apr 5, 2008 | 03:38 PM
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OK got it off and got the new ones. now Im really confused. the ones I pulled off looked to be compressed onto the shaft (holding them on) and the new ones just slide over (really sloppy). Is there a tool to crimp them on? or am I missing something?

jeff

Last edited by GS345; Apr 5, 2008 at 05:43 PM. Reason: MORE PROBLEMS
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Old Apr 5, 2008 | 05:44 PM
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???!!!???
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Old Apr 5, 2008 | 06:05 PM
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They should just press on.
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Old Apr 5, 2008 | 06:12 PM
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Originally Posted by STL94LT1
They should just press on.
Thats what I thought. But they go on really sloppy. If you put it on and turned the head over, they would fall off. AGGHHH. The only thing I am wondering is if they are different since they are 'not stock' I bought them from More performance.??? But you would think the shoulder is the same??!!??

jeff
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Old Apr 5, 2008 | 06:36 PM
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OK. the one in the center is the one I pulled off the others are the 'right ones'
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Old Apr 5, 2008 | 06:51 PM
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Hmmm, looks like your heads have been machined for a smaller seal?
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Old Apr 5, 2008 | 06:53 PM
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I'm beginning to wonder. This is the first time I have torn them down to this point. How or where would I start in getting the right ones?
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Old Apr 5, 2008 | 07:27 PM
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Mine look exactly like the ones on the right and left in your pic, I have no idea about the one on the middle!
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Old Apr 5, 2008 | 07:54 PM
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My springs are double springs. Could/would that make a difference??
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Old Apr 5, 2008 | 08:04 PM
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Will the smaller spring fit over the new seal. If not, your heads probably have been machined to fit the smaller seals.

From what I could find. The stock guides should measure .556

Last edited by STL94LT1; Apr 5, 2008 at 08:20 PM.
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Old Apr 5, 2008 | 08:54 PM
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Stock being .556. Mine have been turned down to .530 with 11/32" valves. Comp cam pt # 503-16.??????
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