Whineing to no end!

[49er]

Well here is what Suzie Q sounds like with the valve cover off, plugs out, just turning over useing the starter. Can't run with the stator cover off for it supports the starter gear.
http://s176.photobucket.com/albums/w196/gustovh/?action=view&current=noise1001.flv
V

That's quite a rhythmic sound. Is it being transferred up through the cam chain galley or through one of the spark plug holes? It sounds like something being repeatedly loaded by binding, then being released, over short cycles. Even a bent starter shaft?
Use a large screw driver as a stethoscope next to each plug hole to eliminate the possibility that the sound is coming from the top end.

 

[gustovh]

I ran it yesterday before I pulled the tank and listened with a stethascope all over the engine. The loudest I heard that noise was in the top rear cam chain area of the valve cover.
I have the battery on the charger and will test with the stethascope some more today. It doesn't seem to be makeing as loud a whine turning over so slow. Sure can hear the valves working though.
V

Is it possible to have a bearing going out in the lower end?

 

[gustovh]

Well check this one out. I was puling the timing chain from side to side. Kinda scritchy don't you think?
I ran the starter without the idler gear and it sounded like a starter I guess, no loud grinding or anything.
http://s176.photobucket.com/albums/w196/gustovh/?action=view&current=noise1001.flv

I think that the rollers in the timing chain are supposed to spin like a drive chain and if that is the case the rollers are not rolling on the T chain, only one side of the rollers is shiny.
Suggestions
V

 

[gustovh]

try this one http://s176.photobucket.com/albums/w196/gustovh/?action=view&current=noise1.flv

 

[earlfor]

I still cannot identify what it is. I dont think its the cam chain. The sound seems to be of striking something and there isnt anything the cam chain can strike. If something is being struck hard enough to make that repetitive sound, I would remove the oil pan and put a 19mm wrench on the right crankshaft end, turning it to see if I could find the spot in rotation where I could feel the "strike". With the pan off, and listening from underneath, the noise of the valves wont interfere as much. I dont think the cause/noise is in the top end.

E.

try this one http://s176.photobucket.com/albums/w196/gustovh/?action=view&current=noise1.flv

 

[gustovh]

I am concerned about all the wear on one side of the cam chain rollers, when tugged side to side, the chain doesn't feel smooth but hitchy. The grind/hitchy sound tugging it side to side doesn't sound normal either.
I have pulled the machine apart as far as I can go given my work space at this time.
V

 

[Guest]

I bet your cam chain guide is worn or broken.
But I'm not a betting man.

 

[gustovh]

Hi Chief, which L do you ride, shaft or chain? I have pulled the front chain guide and found nothing broken or undue wear, I will replace it anyway. The rear guide still is in one piece, has good curve to it, is still attached to it's pivit point, places tenshion on the chain tight enough with the automatic tenshioner.
The noise as best that I can determine is traveling up the cam chain galley, which brings me back to an earlier question, could a bearing be going bad?
V

 

[earlfor]

There shouldnt be any wear pattern on the side plates of the cam chain.
I'll put my money on chef, and the problem is worn cam chain guides.

E.

I am concerned about all the wear on one side of the cam chain rollers, when tugged side to side, the chain doesn't feel smooth but hitchy. The grind/hitchy sound tugging it side to side doesn't sound normal either.
I have pulled the machine apart as far as I can go given my work space at this time.
V

 

[Guest]

We have the same bike.

 

[gustovh]

Replace em both?

 

[Guest]

Have you checked your cam chain tensioner?

 

[gustovh]

Sure did, one of the first things. I pulled the front guide and it appeared OK, intended to replace it, but the road gods ate it up along with new gaskets. I need to reorder. If I read my Clymer correctly I need to pull the jugs to replace the rear guide.
My bigest problem is space to work. Will do a little more testing today.
V

 

[gustovh]

Well spun the engine with a speed wrench and couldn't hear anything that sounded like the whine. Next week I will remove the idler gear for the starter, thus removing it from the chain of events and bump start the old girl and hear what we hear. If it still whines it will have eliminated one possible cause.

 

[earlfor]

"f I read my Clymer correctly I need to pull the jugs to replace the rear guide."
..............uh no, the front and rear cam chain guides are installed after the cylinders/jugs are dropped down over the pistons. The guides are installed from the top.

Earl

Sure did, one of the first things. I pulled the front guide and it appeared OK, intended to replace it, but the road gods ate it up along with new gaskets. I need to reorder. If I read my Clymer correctly I need to pull the jugs to replace the rear guide.
My bigest problem is space to work. Will do a little more testing today.
V

 

[49er]

"f I read my Clymer correctly I need to pull the jugs to replace the rear guide."
..............uh no, the front and rear cam chain guides are installed after the cylinders/jugs are dropped down over the pistons. The guides are installed from the top.

Earl

If the 1100's cam chain assy design is as Chef 's diagram and my 850's is, the rear guide needs to be fitted before the jugs are lowered. The front guide only can be installed from the top.

 

[gustovh]

you are correct 49er.
v

 

[earlfor]

Its been awhile since I did my 1150 and remembered doing the guide install from the top. I doubt the 1150 is different from the 1100, so apparently I have a memory glitch. Sorry bout that.

Earl

If the 1100's cam chain assy design is as Chef 's diagram and my 850's is, the rear guide needs to be fitted before the jugs are lowered. The front guide only can be installed from the top.

 

[49er]

Its been awhile since I did my 1150 and remembered doing the guide install from the top. I doubt the 1150 is different from the 1100, so apparently I have a memory glitch. Sorry bout that.

Earl

Hey, we all get glitches of memory......... Now what was the problem in the first place? ............... Ah yes, wasn't there a tortured sounding engine somewhere?
How's progress with the dismantle gustovh?

 

[gustovh]

Well fellas, I spent the holiday up at my new place and haven't had a chance to deal with it yet. Tomorrow I plan on bump starting as posted previously.
I did take the time on Sunday to drive up to the Seattle area and pick up a 81 750 L with a frozen motor. left outside with the plugs out. Tank is toast, no seat or side covers. Beautiful exhaust though. Will post more tomorrow.
V