Installing new rockers.....

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Feb 14, 2004 | 09:29 AM

1990CORVETTE

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Melting Slicks

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From: 1,000,000,001 Posts

Installing new rockers.....

Is this just an unbolt and bolt on operation??????
What is the process? Do they need adjusting or anything? :confused: :cheers:

Feb 14, 2004 | 10:07 AM

AGENT 86

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Joined: Jan 2003

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From: Summerland B.C. Canada

Re: Installing new rockers..... (1990CORVETTE)

You will have to adjust each valve after changing rockers.
Here is a good method for finding the heal of the lobe.
http://www.centuryperformance.com/valveadjustment.asp
:cheers:

[Modified by AGENT 86, 7:08 AM 2/14/2004]

Feb 14, 2004 | 10:56 AM

redcorvettedave

Drifting

Joined: Jun 2002

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From: Savannah Ga.

Re: Installing new rockers..... (AGENT 86)

:conehead what kind fo cam do I have in my 94 LT1 motor.? :conehead

Feb 14, 2004 | 01:12 PM

1990CORVETTE

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Melting Slicks

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Re: Installing new rockers..... (1990CORVETTE)

Wow , is there an easier way of doing it????????? :eek:

Feb 14, 2004 | 01:26 PM

JCAIRE2

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Joined: Jun 2002

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From: High Plains Drifter Fayetteville, AR

Re: Installing new rockers..... (redcorvettedave)

Quote:

:conehead what kind fo cam do I have in my 94 LT1 motor.? :conehead

Hydraulic roller :cheers:

Feb 14, 2004 | 01:27 PM

JCAIRE2

Le Mans Master

Joined: Jun 2002

Posts: 6,097

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From: High Plains Drifter Fayetteville, AR

Re: Installing new rockers..... (1990CORVETTE)

Quote:

Wow , is there an easier way of doing it????????? :eek:

No, it's not that hard really, just messy and time consuming

Feb 14, 2004 | 06:17 PM

AGENT 86

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From: Summerland B.C. Canada

Re: Installing new rockers..... (1990CORVETTE)

Quote:

Wow , is there an easier way of doing it????????? :eek:

Yes, If you go by the manual you can adjust 8 valves, turn crank 360 degrees and adjust the other 8.
The link I gave you is very accurate in obtaining the heal of the lobe.
Done properly, one should not have to readjust static or running rockers.
:cheers:

Feb 14, 2004 | 06:48 PM

65Z01

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From: SE NY

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Re: Installing new rockers..... (1990CORVETTE)

I set zero lash by twirling the pushrod between thrum and finger as I tighten the nut till I just feel resistance. Then I tighten the nut 5/8 turn to set lifter preload.

Since it can be difficult to determine max lift I prefer this method:
-turn crank till #1 intake is just closing and adjust #1 exhaust
-turn crank till #1 exhaust is just opening and adjust #1 intake

Follow the above in turn for each cylinder.