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The Terminator
Engine/Tuning
head tick: bad lash adjuster ?
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<blockquote data-quote="venomous99" data-source="post: 7326514" data-attributes="member: 6045"><p>my car has has a tick at idle that is audible at start-up and all temps. it seems to go away immediately as soon as the throttle is applied and isnt as loud as what ive heard online for headticks.</p><p>i probed around the engine with a stethoscope and can hear a definite metalic tapping around the top of the valve cover over cylinder 5. when i probe the valve cover bolt over this cylinder i can hear this sound while when the other bolts are probed i cant hear a thing except normal injector ticking.</p><p>probing cylinder 5 as the rpms are increased the frequency of the tick increases, which gets muffled when not using a stethoscope. btw, its amzing how much sound you hear with the steth that normally is not heard to the naked ear.</p><p> </p><p>ive read about bad lash adjusters being a possible culprit of these head ticks. how often do these lash adjusters go bad. anyone have experience swapping these out?</p><p>do you need special tools to get these out?</p><p>any tips on removing them? what is the difficulty level in removing these?</p><p>can the adjuster be removed w/ the head in place?</p><p>to take out the driver side valve cover will the MC need to be removed?</p><p></p><p>when i had purchased the car, we ran a compression check and all cylinders checked in around 160 w/ healthy plugs. at the time the tick was believed to be injector noise and a massive exhaust leak kinda masked the valve noise.</p></blockquote><p></p>
[QUOTE="venomous99, post: 7326514, member: 6045"] my car has has a tick at idle that is audible at start-up and all temps. it seems to go away immediately as soon as the throttle is applied and isnt as loud as what ive heard online for headticks. i probed around the engine with a stethoscope and can hear a definite metalic tapping around the top of the valve cover over cylinder 5. when i probe the valve cover bolt over this cylinder i can hear this sound while when the other bolts are probed i cant hear a thing except normal injector ticking. probing cylinder 5 as the rpms are increased the frequency of the tick increases, which gets muffled when not using a stethoscope. btw, its amzing how much sound you hear with the steth that normally is not heard to the naked ear. ive read about bad lash adjusters being a possible culprit of these head ticks. how often do these lash adjusters go bad. anyone have experience swapping these out? do you need special tools to get these out? any tips on removing them? what is the difficulty level in removing these? can the adjuster be removed w/ the head in place? to take out the driver side valve cover will the MC need to be removed? when i had purchased the car, we ran a compression check and all cylinders checked in around 160 w/ healthy plugs. at the time the tick was believed to be injector noise and a massive exhaust leak kinda masked the valve noise. [/QUOTE]
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head tick: bad lash adjuster ?
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