Tapping sound from 3000-6000 RPM!
#1
Evolved Member
Thread Starter
Tapping sound from 3000-6000 RPM!
After a valve job and installing new GSC beehive valve springs from the machine shop, there is a tapping noise from 3000-6000 RPM's, do the new springs need breaking in or the lifters wern't bled? or is it completely unrelated to these, but the sound is definetely coming from the head...any ideas?
#2
EvoM Community Team Leader
Just to be on the safe side, you should pull the timing belt cover, rotate the engine with a 1/2" socket wrench and make sure all the timing marks line up.
#4
Evolved Member
Thread Starter
ill still check these again to be sure.
#6
Evolved Member
Thread Starter
yes but when you have the shaft delete kit for the car does it matter which orientation the oil pump is on the timing mark ,plus when I spin the oil pump gear it doesnt react like spining clock wise to come to set on a point.
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#8
Evolved Member
Thread Starter
ill have to bleed the lifters you mean? Without bleeding will they make the tap tap tap noise?
Last edited by babaz7; Nov 4, 2018 at 01:16 AM. Reason: No reason
#9
EvoM Community Team Leader
#11
EvoM Community Team Leader
I've never heard of a valve spring break in specifically. Yes you have to bleed the "lifters" (hydraulic lash adjusters) before installing them.
#12
Evolved Member
Thread Starter
The tapping sound got even louder will have to open the valve cover and see whats going on ,i think its the lifters, maybe the mechanic didn't bleed them before putting them in.
btw do put the lifters in dry or fill it up with diesel before you put them in?
btw do put the lifters in dry or fill it up with diesel before you put them in?
Last edited by babaz7; Nov 12, 2018 at 05:14 PM.
#14
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#15
EvoM Community Team Leader
you put them in empty