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I would not worry to much about this noise when the motor is cold; engines have clearanaces that come together at operating temperature. If this noise happens when the motor is at operating temperature then you might have a problem.

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โˆ™ 2006-02-28 23:42:15
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Q: What will cause roller lifters on a 1996 Chevy Z-71 Vortec to tap on cold starts?
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What will cause roller lifters on a 1997 Chevy Z-71 Vortec 350 to tap on cold start?

low oil pressure or the seal on the roller tappet is old and it takes the roller tappet a minute to pressurize again.


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YES it does and it is a roller cam and hydraulic lifters.


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No it does not. Chevy did not start using a roller cam until late 1995.


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yes like 350 engine


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Does it matter where the lifters in Chevy vortex?

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What type of lifters does a 1987 Chevy Camaro have?

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Can the lifters be adjusted on 1999 Chevy blazer v6 vortec?

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How do you adjust the lifters on 95 Chevy S10 2.2l?

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Does 1997 Chevy 3500 series truck with 454 gas have hydraulic lifters?

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How do you change lifters in a '91 Chevy Cavalier?

If we are talking about valve lifters, remove cylinder head and pushrods and lifters will be excessable.


What year did the 350 go to hydraulic lifters?

99.9 % of all Chevy small blocks and big blocks came factory with HYDRAULIC flat tappet lifters. Starting in late 1995 Chevy went to a HYDRAULIC roller lifter. Actually, the small blocks started coming through with roller cams with the introduction of the raised-rail heads around 86 or 87. Pretty sure the big blocks went roller when they switched to the non-adjustable valvetrain around late 80's, early 90's.


Why would the roller lifters on a 1999 Chevy Camaro tap on a cold start sometimes and not others?

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