Author Topic: Stuck valve  (Read 313 times)

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Offline Bobdog76

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Stuck valve
« on: October 08, 2019, 05:23:24 pm »
Hello, new guy I am, if I screw up again apologies in advance.
I am struggling with TBIs and PTSD, again I apologize if I sound stupid, I am. I have a 2001 Concourse with approximately 50,000 miles on it. It has sat for approx. 2
3 years, after reading here I decided to do everything and purchase new tires when possible. I would like to thank the gentleman who made up the spreadsheet of all maintenance tasks I am following it carefully. I have gotten to adjusting the valves, it's taken a while to get comfortable with the task but now I am confronted with a valve that won't move as I loosen the lock nut. I should also add the bike was running just fine last time I rode her. My balance was so bad I could barely keep the bike up, I am much better now and riding this bike has been a dream for a long time. I find working on the bike quite fun and having grown up on farms and worked lots in third world countries I am quite comfortable with tools and a good set of directions. The user's guide, Clymer I believe I purchased on eBay and only goes up to 99 and my bike is a 01, is that ok? I also have the factory manual. Please don't tell me to buy a new bike! I love this bike and I figure I owe my blue baby to get her back on the road!. :-)  I hope it is okay to ask two questions in one posting, I am determined to balance the carbs myself. I have time but no money. Is there a relatively inexpensive tool I could purchase, perhaps even used for the task?.Many thanks, B

Offline GeorgeRYoung

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Re: Stuck valve
« Reply #1 on: October 08, 2019, 05:49:33 pm »
Frugal carb balancing tool:

http://web.ncf.ca/ag136/carbsynch.htm

Offline kkja13

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Re: Stuck valve
« Reply #2 on: October 08, 2019, 05:57:55 pm »
When you say the valve won't move what is actually happening/not happening. 
Are you not getting a gap that can be measured with the feeler?
Or is the valve actually stuck and not moving as the engine is rotated?
2004 C10
2003 Suzuki SV650s
2000 Kawasaki Eliminator 125 (75mpg!)
1993 Suzuki DR350; 1984 Honda XR200R (RFVC); 1985 Yamaha PW80; 1975 Yamaha DT175;
1974 Honda ST90; 1973 Honda Z50 (first bike, still runs)

Offline Boomer

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Re: Stuck valve
« Reply #3 on: October 08, 2019, 08:30:41 pm »
What you are adjusting are the tappets that push on the follower. The follower in turn pushes on the valve. If you have loosened the locknut but the tappet won't turn, it could be it's jammed.
George "Boomer" Garratt
Wickford, UK
CDA-007


Offline Bobdog76

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Re: Stuck valve
« Reply #4 on: October 08, 2019, 08:59:29 pm »
Thanks!  not getting a gap that can be measured with the feeler

Offline Bobdog76

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Re: Stuck valve
« Reply #5 on: October 08, 2019, 09:05:16 pm »
Thanks to both kkja and Boomer. I understand, awesome description of valve function. I am hoping to full membership in COG. Wow! This is really cool!

Offline Boomer

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Re: Stuck valve
« Reply #6 on: October 09, 2019, 08:38:25 am »
This link is to Steve's valve adjustment video for the C10.
https://www.youtube.com/watch?v=SQEFWeFeqUo
Should show you all you need to see.
George "Boomer" Garratt
Wickford, UK
CDA-007


Offline Boomer

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Re: Stuck valve
« Reply #7 on: October 09, 2019, 09:40:10 am »
What you are adjusting are the tappets that push on the follower. The follower in turn pushes on the valve. If you have loosened the locknut but the tappet won't turn, it could be it's jammed.
My apologies, in the C10 the cam presses on the follower, the screw and lock-nut tappets that go through the follower then press on the valve stem.
Since there are 2 per cylinder, sometimes if one is over-tight it can be difficult to loosen both of them. In that case loosen both locknuts and unscrew both the tappets until both have clearance, then adjust them as per normal. If you've loosened the locknut and cannot unscrew the tappet, it may be cross-threaded. In that case you may need to replace the follower, but hopefully not.
Let us know how ya get on  :)
George "Boomer" Garratt
Wickford, UK
CDA-007


Offline MAN OF BLUES

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Re: Stuck valve
« Reply #8 on: October 09, 2019, 07:43:11 pm »
I was staying clear of this, but might say that I think he is not rotating the engine to get the cams for the second set of valves into position, thus the "large" clearance he is seeing...

Follow the manual you have there Bobdog.

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Offline Bobdog76

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Re: Stuck valve
« Reply #9 on: October 10, 2019, 02:44:58 am »
Thanks man of Blues. I'm an idiot, I swear I read that section of the manual through 10 times. Thank you all very much I'll let you know how things turn out.

Offline Bob_C_CT

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Re: Stuck valve
« Reply #10 on: October 10, 2019, 12:53:17 pm »
Bobdog,
Hopefully you are not turning the crankshaft nut to move the camshafts. I think that is method in the manual but that nut is pinned and can shear the pin if there is enough resistance, not so much in this case but when spark plugs are installed causing more resitance to crank.
Most of us blip the starter button to turn the camshafts (Coils disconnected and their wires isolated, no electrical arcing).
Southern Connecticut.
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Offline kkja13

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Re: Stuck valve
« Reply #11 on: October 10, 2019, 01:05:09 pm »
Or put the transmission in 6th gear and rotate the rear wheel while on the center stand.  No need to deal with the coils, if you're lazy like me.  ;D
2004 C10
2003 Suzuki SV650s
2000 Kawasaki Eliminator 125 (75mpg!)
1993 Suzuki DR350; 1984 Honda XR200R (RFVC); 1985 Yamaha PW80; 1975 Yamaha DT175;
1974 Honda ST90; 1973 Honda Z50 (first bike, still runs)

Offline Stasch

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Re: Stuck valve
« Reply #12 on: October 11, 2019, 10:29:21 am »
Or put the transmission in 6th gear and rotate the rear wheel while on the center stand.  No need to deal with the coils, if you're lazy like me.  ;D

Or if you are even lazier more efficient like me :D use the starter with spark plugs out, to bump the engine to set the cams in the 2 different positions needed to do the deed.
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