[Duck0fDeath]

I'm still getting a ticking noise even after replacing my timing chain. Started wondering if I'm using the wrong mark on the flywheel. I've known there was a second mark just past where I've been using but I could clearly see the "T" on the top mark, so that's what I use. My eyes aren't so good. Today I pulled the cover off my spare to get a good look at the flywheel. Now I'm thinking I should be using the lower mark with the "T" turned sideways.

Which is it?

 

[shadetree]

the line that sits right under the T, is what you line up with the index on the cover/case . seeing how these have 4 valves ?, its a pain to get both intake and exhaust valves set right, been there, done that..lol.

 

[shadetree]

at least your oil looks great !..lol.

 

[shadetree]

gotta ask...lol. when you put the cam chain and sprocket in the head, did you make sure that the lines on the cam sprocket was even with the head surface ??. and cam lobes facing straight down ?. the main thing is the lines stamped on the cam sprocket..THEY MUST BE LINED EVEN TO THE HEAD SURFACE !!!!!!.

 

[Duck0fDeath]

Damn. I'm doing it right then. Yes, lines on cam sprocket line up with the head. It's running great. Valves are adjusted right. What's weird is one of my motors was quiet until I replaced the rings, valve seals, lapped the valves, and cleaned up the head. Afterwards, it sounded just like my other motor both before and after I did the same work. The timing chain needed to be replaced but it made no difference in the noise. I may tear the top end off the spare to see if I can spot anything obvious going on that might explain the noise on my good motor.

 

[Duck0fDeath]

LOL at the oil. That motor came with one of my parts bikes and had the oil drained and the head in a box with a broken jug bolt stuck inside. I've robbed a few items from it now, including the clutches. Sadly, it's the only one of the three motors I got that didn't have a stripped oil drain bolt.

 

[shadetree]

Damn. I'm doing it right then. Yes, lines on cam sprocket line up with the head. It's running great. Valves are adjusted right. What's weird is one of my motors was quiet until I replaced the rings, valve seals, lapped the valves, and cleaned up the head. Afterwards, it sounded just like my other motor both before and after I did the same work. The timing chain needed to be replaced but it made no difference in the noise. I may tear the top end off the spare to see if I can spot anything obvious going on that might explain the noise on my good motor.

then my only guess from this on out is, your valves are not set right bro .

 

[shadetree]

how did the cam lobes look ?, rocker surface ?.

 

[shadetree]

i've seen many rocker surfaces ate away because owners did not set them right ?, or they ran the top end dry from installing the oil filter backwards ?..lol.

 

[Duck0fDeath]

Rocker arms and cam lobes look good. Not too worn and no scratches.

 

[shadetree]

Rocker arms and cam lobes look good. Not too worn and no scratches.

then I have to go with the valves not set right.

 

[Duck0fDeath]

I'd like to think I have that procedure down but clearly somethings not exactly right. At least I'm consistent, because both my motors sound the same. That's why I wanted to clarify the timing mark. I first suspected valves/adjustment and spent a ton of time checking and rechecking them. Then, I assumed it was the chain, but now that I've replaced that I'm back to scratching my head.

 

[wheeler]

How loud of a tick are we talking?

 

[Duck0fDeath]

If it were someone elses motor I might not think it's too loud, but it's mine and it is

I'll see if I can get a video of it tonight to post.

 

[Duck0fDeath]

Checked the tensioner and reinstalled. I have two others but this one seems solid, so I didn't swap it out. Made a quick video of the running motor. Maybe someone's got an ear for what's going on with it.

 

[shadetree]

Checked the tensioner and reinstalled. I have two others but this one seems solid, so I didn't swap it out. Made a quick video of the running motor. Maybe someone's got an ear for what's going on with it.

https://www.youtube.com/watch?v=5Gv-Vd3qflM

valves or cam chain tensioner. and have you looked at the adjustment on the decompression release lever ?.

 

[shadetree]

if you get tired of pulling your hair out over this ?, load it up, bring it down here, i'll solve the problem..lol.

 

[shadetree]

Checked the tensioner and reinstalled. I have two others but this one seems solid, so I didn't swap it out. Made a quick video of the running motor. Maybe someone's got an ear for what's going on with it.

https://www.youtube.com/watch?v=5Gv-Vd3qflM

did you install a new D.I.D. cam chain in this ?, was it the correct chain ??.

 

[shadetree]

p.m. me your phone number, do not post it out here !..lol.

 

[retro]

If the cam journals are good and the compression release cam/lever is not bouncing off of the rocker arm while its running, my guess is that it might be a slight exhaust gasket leak on one of the header pipes. Sometimes those two pipes don't fit the same (difficult to center each of them perfectly over the exhaust ports) after they are unbolted from the head the first time.