valve clank with video help
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On The Tree
Joined: Feb 2009
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From: Texas
valve clank with video help ok i got some new rods and put them in i adjusted the rockers with 1/4 turn past zero lash and set the lock i turned on the motor and now it makes a clank or knocking sound after i rev the motor some times ....did i not adjust the rockers right do they need to be 1/2 turn past zero lash i have readjusted them 2 times already and still the sound is still there it never made this sound before when the car was running i got new rods because one of them had bent ....in the video i rev the motor 4 times the 2nd time it clanks a bit but you cant really hear it in the video and then the rpm drop a bit then goes back up and on the 3rd rev you can hear it clank or knock like 4 or 5 times what is making that sound and how do i fix it
<object width="550" height="400"> <param name="movie" value="http://someyoutubevideo"> <embed src="http://www.youtube.com/watch?v=Ijiub6Cg4yo" width="550" height="400" type="application/x-shockwave-flash"></embed> </object>
<object width="550" height="400"> <param name="movie" value="http://someyoutubevideo"> <embed src="http://www.youtube.com/watch?v=Ijiub6Cg4yo" width="550" height="400" type="application/x-shockwave-flash"></embed> </object>
Last edited by RED PUNISHER Z; Jul 22, 2010 at 03:22 PM.
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From: colorado springs Elevation: 6035 ft
Just do the engine running method. loosen one rocker at a time untill it starts to click and then tighten until clicking is gone and then 1/4 turn past that ad you should be good to go.
Thread Starter
On The Tree
Joined: Feb 2009
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From: Texas
yes i did...i did it with the motor off starting at the #1 cylinder and following the firing order and turning over the motor waiting for the intake lifter to drop then set them to zero lash
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Thread Starter
On The Tree
Joined: Feb 2009
Posts: 163
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From: Texas
i so a lose rocker will sound like that listen close after the 3rd rev you can hear it after i rev the motor i guess ill do a bit more than a 1/4 past zero lash if i over tighten them what will it do so i know what to look for
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On The Tree
Joined: Feb 2009
Posts: 163
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From: Texas
so do i need to set them more than a 1/4 turn past zero lash ?.. i let the motor cool down to see if it made a difference and it did no clanking sound ...when i took the video it was up to temp and how can it be the bottom end the motor was fine before i took the intake and valve cover off and the motor has only about 700 miles on it
