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Engine noise need help

836 views 5 replies 3 participants last post by  american opel  
#1 ·
My engine has a noise in it sounds like a tapping sound it goes up with rpm but kinda fades out because its goin faster but at an idle it sounds the loudest, i did the screw driver test and on the water pump cover / just above it is where its making the loudest soud from also checked the cyclinder and other engine case and u can hear the noise but its not as loud , could it just be the counter balancer or water pump bearings ? Also when i put the screw driver on the head u can here a tapping like the pistons is slapping the top of the head its not very loud but its there , any ideas ?
 
#3 ·
Thanx , so i can just pull off the cover an if it moves it needs to be replaced , its the loudest on the water pump side right at the cover i checked both engine cases for noise an they was pretty much the same a little noisey around the kick starter but i think thats normal but put the screw driver on the cover of the water pump and its crazy loud