340valve noices

[tvacuda340]

hi
 340 la with  crane  hydr roller dur222/339  and   520 -568 lift  with 1,6 ration rocker arms
it hear like it is comming from the valve... when it closing  or? ??

[Moparal]

What kind of noises?  Did you make sure you had enough piston to valve clearance? 

[tvacuda340]

yes 
 it is not kocking sound .....its like tapping
 can it be the valve closing fast

[Moparal]

Do you have adjustable rocker arms on it?  Does it sound like it is in one location or all over the top end?

[tvacuda340]

i have adj arm on
it is all over
mayby it must sound like that
it is after i got magnaflow full exhust on (before flowmaster )
now i hear all noices

[nivvy]

get a scope put in on the valve covers while the car is running youll pinpoint it down... maybe its somewhere else. i thought mine was coming from the valve cover and it turned out to be loose converter bolts...

[MEK-Dangerfield]

A tapping sound could be a leak between the heads and your exhaust manifolds, or headers.   


  Mike

[JayBee]

A tapping sound could be a leak between the heads and your exhaust manifolds, or headers.

I was going to mention that too. When I heard a tapping sound coming from mine I also thought it was the valve train, after re-tightening the exhaust mainifolds it went away.

[MEK-Dangerfield]

I was going to mention that too. When I heard a tapping sound coming from mine I also thought it was the valve train, after re-tightening the exhaust mainifolds it went away.

...So you've been down that road too?   

[Moparal]

   Yesterday evening I had my radio turned down real low, so low I really couldnt tell it was on. But I thought I kept hearing a noise under the hood towards the back of the engine. It was my center speaker. I could hear the base a little bit   Got me tho