| Author | Message | ||
     Kilika |
So I've noticed a lot a threads recently about engine noise and knocking I figured I would post a video that I have. It sounds to me like what a lot of people are describing. It's a rhythmic hammering. It happens more then the bike is on the sidestand.... and then it gets quieter when the engine warms up. I've noticed it more since I switched to full synthetic oil. http://youtu.be/5B_Y3yUE4Gk Chris. | ||
| Dhays1775 |
That sounds crazy!! Most likely the rotor nut is loose. When was the last time the oil was changed? | ||
| Jimustanguitar |
Here's how mine sounds. http://youtu.be/av8KBiyZGTY Keep in mind that cell phone microphones are crap, and they're all different. I'm also inside of a garage, so it's echo-ey and there's a lot of reflection. | ||
| Two_seasons |
^^that sounds about right^^ The first youtube video could be: A. stator nut working loose B. cam(s) taking a dump C. you lost shim(s)? D. cam chain guides really worn out Have you checked/adjusted the valve shims? Have you checked your oil sump screen? I'd drain the oil and look for debris. Run it through a cheese cloth to inspect. Let us know what, if anything, you find out. | ||
| Bubba_ |
deleted (Message edited by bubba_ on April 10, 2014) | ||
| Kilika |
Just had valves done 2 weeks ago. And oil change 50 miles ago. I'm hoping rotor nut. | ||
| Musclecargod |
You know I thought mine sounded louder right after the valve job also, but not that loud. I would definitely check it out. Just interesting that you just had valves done also. | ||
| Tbowdre |
+1 rotor nut... now! Easy fix. | ||
| Kilika |
Well turns out I was low on oil too but I will definitely look into the rotor nut. I don't have the cam lock tool. But I have a plethora of other tools. So 2 things, any tricks people have found to lock the cams? Otherwise I will put my name on the list for the tool. Also thanks everyone. Chris. | ||
| Sparky |
I think ya need the crank lock tool not cam lock tool to tighten the rotor nut. Am I right? | ||
| Nillaice |
Just gonna leave this here. http://www.badweatherbikers.com/buell/messages/290 431/734073.html?1396989502 | ||
| Kilika |
So I've been watching videos online. Where on the bottom of the engine does the crank locking tool go? Also I'm missing some of the epoxy that's actually around the rotor anyone think that could be making the hammering noise? I'll attempt to add a photo in a bit. Chris. | ||
| Oldog |
Chris: Not likely that the rotor glue making the noise, sounds like valve train noise but the nut is easy to check the crank locking tool installs in to the cases under the motor, you must remove the pipe to get to the plug, if you are running the stock pipe get some gaskets first I have done the valve lash adjustment its not hard to do if the nut is tight catch your oil in a clean container and drop the screen and check for debris, if thats good, your next step is to rotate the engine or pull the frame and re-check the valve lash and followers your self, My 0.02$ DIY is a pita but you dont get the "they all sound like that" mess and you know whats whats... | ||
| Kilika |
I just wanted to let everyone know that I found out that it was the cam tensioners. One was almost seized up completely. I'll post how it sounds after the fix as soon as I get the parts in. Thanks everyone for the help. Chris. | ||
| Redbat |
Kilimanjaro, "it was the cam tensioners"? I think you meant the cam chain tensioners, right? | ||
| Moorev2 |
Ouch, here is a recording of how mine sounded a while ago. https://www.youtube.com/watch?v=7QuIn6MRz2w&featur e=youtu.be It turned out to be my valves hitting my piston....some how my timing slipped on the rear cylinder :-( If you look at the Archive through March 11, 2014 you will see my post with what I found. The valves were hardly touching the piston....could hardly feel the impact point with fingernail but they were indeed touching. | ||
| Mvaughn757 |
hi kilika, was the cam chain tensioner seized in the head? or was the cam chain guide worn out. Im curious cause ive got the same thing going on with mine and It turned out to not be the rotor nut. I pulled the back one out but as far as I can see it looked fine, slides in and out. | ||
| Kilika |
Yeah it was the cam chain tensioners. I'm actually having a dealership do it because I have no time before I leave for deals gap to get it done. He called me and said the tensioners were locked up and no putting pressure against the chains at all. There are apparently 2 and I actually didn't know that. Haha. Chris. | ||
| Mvaughn757 |
cool, im glad you got it kilika. after reading your post I decided to check the front one. I looked at the back one first but because I thought the noise was in the rear head I left the front alone. I also discovered the front tensioner wasn't pushing against the front chain. I hope it finally puts this issue to rest. | ||
| Redbat |
Can the cam chain tensioners be removed and serviced without removing the valve covers or engine side covers? | ||
| Matteson |
No. The cam chain is internal. | ||
| Redbat |
I'm only referring to the spring loaded part that puts the actual tension on the plastic cam chain tensioner. I'm aware of what's internal, that's why I asked about the covers. | ||
| Matteson |
From a previous post: To replace the hydraulic unit one wouldn´t have to open anything at the heads. For replacement of the tension shoe one would have to completely disassemble the top end and side covers (which almost means a complete engine strip down). Replacing the guiding shoe asks for removement of the head covers but not the heads themself. | ||
| Kilika |
Hey a long time ago I said I would post a video of the post tensioner replacement sound. Here it is that was definitely the culprit. Now to get ready to slay the dragon in may. Also this is before I let it warm up. So there is still some noise. http://youtu.be/vbRflP4Su10 Chris. (Message edited by kilika on May 02, 2014) |
