tbi 350 rocker arm play.
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Joined: Mar 2011
Posts: 202
Likes: 1
From: williamstown,NJ
Car: 95 9C1,99 Sierra,90Sierra,00 sierra
Engine: TBI350,LM7,LT1,Vortec 350
Transmission: 700r4,4L60e,4L60e,4L80e
Axle/Gears: 10 bolt,14bolt,3:42,3:73,3:08,3:73.
tbi 350 rocker arm play.
i was wondering if rocker arms are suppose to have play in them.i always thought they shouldn't but not 100% sure so i figured id ask.the heads have about 5 pounds of sludge on them to.i was wondering if i should pull em off or clean em on the truck.how hard would it be to take them off?she sounds throaty.good throttle response.but wont turn on dry road.
Supreme Member
Joined: Sep 2002
Posts: 9,192
Likes: 20
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: tbi 350 rocker arm play.
not supposed to be any slack in them - search "valve lash" and you'll see how to tighten
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Joined: Jun 2006
Posts: 181
Likes: 4
From: Dallas, TX
Car: 1982 Z-28
Engine: 5.7L Crossfire
Transmission: TH-350
Axle/Gears: GM Posi, 3.73
Re: tbi 350 rocker arm play.
It is ok for rocker arms to have a little movement when the engine is not running and the valve is in the closed position - the slack is taken up by hydraulic pressure only when the engine is running. You shouldn't be able to move the arms off the valve stem though.
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