Setting Valve Lash while engine is running.
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Joined: Nov 2000
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From: Houston, TX
Car: '86 T/A
Engine: 350/LT1 Intake
Transmission: 700R4 - Built
Axle/Gears: 4th gen 3.42
Setting Valve Lash while engine is running.
First, you have to back off the nut till you hear a ticking noise (Over the rest of the car noises) Right? Then you tighten it till you don' t hear the noise. After that however, how much are you supposed to tighten it? 1/2 turn? 1/4 turn? Need to make sure I do these right and no go bending rods and such.
Thread Starter
TGO Supporter
Joined: Nov 2000
Posts: 2,201
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From: Houston, TX
Car: '86 T/A
Engine: 350/LT1 Intake
Transmission: 700R4 - Built
Axle/Gears: 4th gen 3.42
yep, read all over the boards, it varied from 1/4 to 1 full turn.. but half seems to be the reccomended, which is exactly what I am going to do
Thread Starter
TGO Supporter
Joined: Nov 2000
Posts: 2,201
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From: Houston, TX
Car: '86 T/A
Engine: 350/LT1 Intake
Transmission: 700R4 - Built
Axle/Gears: 4th gen 3.42
ok, something must be wrong, I set them to 1/2 after zero lash, and the car wouldn't start. I put them back 1/2 a turn, and the car fired right up.
Well, the car started, but it deffinitely didn't idle well at all.. it was about to die.
Well, the car started, but it deffinitely didn't idle well at all.. it was about to die.
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Joined: Nov 2001
Posts: 2,743
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From: heartland
Car: 89rs (previous 2.8)
Engine: 406
Transmission: 700r4 (for now)
strange.....wish I could tell you what might be wrong, but valve adjustment is NOT my better subject....Check timing ?
Ps.. Hey are those centerlines on your car ? Those wheels are BAD
Ps.. Hey are those centerlines on your car ? Those wheels are BAD
Thread Starter
TGO Supporter
Joined: Nov 2000
Posts: 2,201
Likes: 0
From: Houston, TX
Car: '86 T/A
Engine: 350/LT1 Intake
Transmission: 700R4 - Built
Axle/Gears: 4th gen 3.42
Well, I figured out what was wrong, I adjusted the preload w/ the car off, and I shoulda done it slowly when the car was on.
Man that passanger side valve cover is a bitch.
Anyway, yes those are centerlines on my car
Man that passanger side valve cover is a bitch.
Anyway, yes those are centerlines on my car

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theshackle
Tech / General Engine
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Mar 5, 2017 06:37 PM





