danthern
Active Member
Not sure what the lift is, but this noise just started with no modifications. It's not like I modded the cam and got a racket....
Road King Chirp....still chasing
- Thread starter danthern
- Start date
Not sure what the lift is, but this noise just started with no modifications. It's not like I modded the cam and got a racket....
danthern
Active Member
I assume you mean the inside of the cover....no evidence that I can see...talk some more about the "vent"....what is that?
danthern
Active Member
tried it....doesn't seem to make a differencs
danthern
Active Member
Nothing obvious....I've used clay as well as liquid paper on the ribs. I can't be absolutely certain that it's not hitting. Could be mishandling of the cover when I'm replacing it. The thing is, it just started with no mods, no work on the engine. I can't understand why it would all of a sudden start making noise...?? Makes me hesitant to think that something is hitting the cover....but yet, I don't hear the noise when I run the engine with the cover removed...
D
dbmg
Guest
This may seem simplistic. Have the exhaust hangers on mufflers lubed or a baffle loose in muffler?????
danthern
Active Member
nothing is simplistic at this point...its not coming from there though...the rubber bushings have been replaced and the noise was present with the exhaust off...
BUBBIE
Well-Known Member
I'm surprised you didn't Notice the post I put in... Or did you just Ignore it?
THE UMBRELLA valve CAN make a bad noise... Right in the middle of the head. You saying the noise Is Not there when the cover is OFF...... LOOSEN the bolts a Little to maybe make it Leak AIR around..... Noise Might be gone... Better yet Just replace the unit... That is the only place for AIR to move IN and OUT...
THINK....... :shock
signed....BUBBIE
THE UMBRELLA valve CAN make a bad noise... Right in the middle of the head. You saying the noise Is Not there when the cover is OFF...... LOOSEN the bolts a Little to maybe make it Leak AIR around..... Noise Might be gone... Better yet Just replace the unit... That is the only place for AIR to move IN and OUT...
THINK....... :shock
signed....BUBBIE
danthern
Active Member
I replaced the breathers...I wasn't sure what you mean when you talk about the vent...
that's a good idea....I'll try it
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Question/suggestion. Would removing the air filter and placing a finger tip over each vent tube while the engine is idling alter the flow momentarily enough to check the vent system as a noise source? How close to the cam cover is the exhaust pipe and heat shield, close enough to interfere with engine shake?