tapping from driver side valve cover
08-12-2006, 05:24 PM
#1
tapping from driver side valve cover so for the pass week I've been hearing a tapping from my motor.
narrowed it down to driver side, so I pulled the valve cover. the tapping noise isnt consistant so I narrowed it down it down to valvetrain related.
I started the car, listened with a stethoscope its coming from one of the the rocker or one of it related component in there. the 4th rocker from the back. I havent tried switching the rocker around yet to confirm, but whats the chances of it be anything else?
narrowed it down to driver side, so I pulled the valve cover. the tapping noise isnt consistant so I narrowed it down it down to valvetrain related.
I started the car, listened with a stethoscope its coming from one of the the rocker or one of it related component in there. the 4th rocker from the back. I havent tried switching the rocker around yet to confirm, but whats the chances of it be anything else?
08-13-2006, 02:42 PM
#7
Originally Posted by Bad Blu Formula
You'd know if it were a broken valve spring from the get go. Most likely a pushrod from the sound of things.
I know this sounds funny but it works. Take a short wooden stick (broom handle) and use it as a stethoscope. While engine is running touch one end of broom stick to all areas of the vavle covers while holding other end of stick to your ear (sound will be amplified). Area of loudest ticking noise should be suspect. You can also buy engine stethoscopes at most autoparts stores for the same purpose.
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08-13-2006, 05:36 PM
#8
Originally Posted by gollum
I agree. I have also heard of needle bearings falling out of OEM rocker arms also.
I know this sounds funny but it works. Take a short wooden stick (broom handle) and use it as a stethoscope. While engine is running touch one end of broom stick to all areas of the vavle covers while holding other end of stick to your ear (sound will be amplified). Area of loudest ticking noise should be suspect. You can also buy engine stethoscopes at most autoparts stores for the same purpose.
I know this sounds funny but it works. Take a short wooden stick (broom handle) and use it as a stethoscope. While engine is running touch one end of broom stick to all areas of the vavle covers while holding other end of stick to your ear (sound will be amplified). Area of loudest ticking noise should be suspect. You can also buy engine stethoscopes at most autoparts stores for the same purpose.
08-13-2006, 05:40 PM
#10
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if you do the wooden dowel rod trick watch out for all of the moving parts, i knew a kid in high school that hit his belt with one in his ear and it shoved in to his head!!!!
08-27-2006, 11:27 AM
#11
just an update for future reference
pulled the head, pics here
https://ls1tech.com/forums/generation-iii-internal-engine/566018-what-would-cause-lifter-do-pic-inside.html
pulled the head, pics here
https://ls1tech.com/forums/generation-iii-internal-engine/566018-what-would-cause-lifter-do-pic-inside.html
