Knocking after reassembly
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Road Captain
Joined: Aug 2012
Posts: 712
Likes: 49
From: NH - Live Free or Die
Knocking after reassembly
So after doing all the chrome PC on my bike I got it reassembled and fired it up. I'm getting a knocking coming from the rocker box(es). I can't tell if it's just the front or both.
Here's a video where you can hear it. Any idea what it might be?
Here's a video where you can hear it. Any idea what it might be?
Road Warrior
Joined: Dec 2012
Posts: 1,335
Likes: 5
From: CT
So after doing all the chrome PC on my bike I got it reassembled and fired it up. I'm getting a knocking coming from the rocker box(es). I can't tell if it's just the front or both.
Here's a video where you can hear it. Any idea what it might be?
Video Link: http://youtu.be/Pm_q8S3zXPw
Here's a video where you can hear it. Any idea what it might be?
Video Link: http://youtu.be/Pm_q8S3zXPw
Sent from my Galaxy Nexus
Last edited by 12hdrk; Jan 18, 2014 at 03:25 PM.
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Road Captain
Joined: Aug 2012
Posts: 712
Likes: 49
From: NH - Live Free or Die
When I installed I made sure they went back in the right hole and went through the entire process of reinstalling with top dead center and making sure they spin freely etc.
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Road Captain
Joined: Aug 2012
Posts: 712
Likes: 49
From: NH - Live Free or Die
Anyone have a picture of which one is intake and which one is exhaust?
I marked them when I took them out so I honestly don't think that's the problem. So tempted to just cut them and buy adjustables. Just dumped so much money into the bike though...
I marked them when I took them out so I honestly don't think that's the problem. So tempted to just cut them and buy adjustables. Just dumped so much money into the bike though...
Road Master
Joined: Apr 2012
Posts: 1,096
Likes: 17
From: San Jose
It's a process finding these issues, and you have to start some where. if you did not change any components and just removed and re installed the parts, it is probably some thing simple.
I'd start buy pulling the rocker covers.
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Road Master
Joined: Apr 2012
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From: San Jose
I believe the longer one are the exhaust, exhaust valve is on the outside and intake valves are in the center.
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Road Captain
Joined: Aug 2012
Posts: 712
Likes: 49
From: NH - Live Free or Die
So, you are going to replace something that you don't think is the problem?
It's a process finding these issues, and you have to start some where. if you did not change any components and just removed and re installed the parts, it is probably some thing simple.
I'd start buy pulling the rocker covers.
It's a process finding these issues, and you have to start some where. if you did not change any components and just removed and re installed the parts, it is probably some thing simple.
I'd start buy pulling the rocker covers.
Pulled the front rocker cover, oil is definitely getting up in there.
Looks like as long as I marked them correctly the pushrods are correct. Both dark ones are on the exhaust and both light ones are on the intake.
Road Master
Joined: Apr 2012
Posts: 1,096
Likes: 17
From: San Jose
A compression check would also confirm that a valve is not being held open. which could be the case if the push rods were in the wrong spot.