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  #41  
Old 08-29-2016, 11:48 PM
Yosemite Sam Yosemite Sam is offline
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Someone help me out here if I'm missing something.

If the intake valve is "sticking" (and I'm not saying that it isn't). You aren't really to the point yet of adjusting it.

If the valve is sticking shouldn't it be removed and have the stem and the guide cleaned first?

I'm not saying the guys are wrong, but I'm leaning more toward thinking that there is crud under the lip of the valve preventing it from closing (or something worse).

If you rotate the engine with the valve cover off, it should be evident (from the distance between the valve and the tappet) if the valve is being held open, stuck, or just out of adjustment. Out of adjustment in the case that the valve isn't closing would mean that the end of the valve would always be touching the tappet.
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  #42  
Old 08-30-2016, 11:03 AM
Wayne Wayne is offline
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Quote:
Originally Posted by Yosemite Sam View Post
Someone help me out here if I'm missing something.

If the intake valve is "sticking" (and I'm not saying that it isn't). You aren't really to the point yet of adjusting it.

If the valve is sticking shouldn't it be removed and have the stem and the guide cleaned first?

I'm not saying the guys are wrong, but I'm leaning more toward thinking that there is crud under the lip of the valve preventing it from closing (or something worse).

If you rotate the engine with the valve cover off, it should be evident (from the distance between the valve and the tappet) if the valve is being held open, stuck, or just out of adjustment. Out of adjustment in the case that the valve isn't closing would mean that the end of the valve would always be touching the tappet.
There is a lot of crud on the upper portion of the exhaust valve mechanism, as seen through the breather.
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  #43  
Old 08-30-2016, 06:00 PM
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cubs-n-bxrs cubs-n-bxrs is offline
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How about some pics of what is going on.
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  #44  
Old 08-30-2016, 10:56 PM
Wayne Wayne is offline
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Originally Posted by cubs-n-bxrs View Post
How about some pics of what is going on.
What would you like to see?
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  #45  
Old 09-01-2016, 09:48 AM
Wayne Wayne is offline
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Here's the breather and crud on the exhaust side.

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  #46  
Old 09-01-2016, 10:06 AM
Wayne Wayne is offline
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Ok help me out on TDC here. My skinny fingers can't seal it detect compression on the spark plug hole. This page says http://************************.com/valvecam.htm

"To adjust the valves, remove the crankcase breather cover, then rotate the crankshaft by hand until both valves are fully closed with the piston at TDC on the compression stroke. If one valve opens slightly and the other closes slightly and vice-versa while rotating the crankshaft back and forth, then the piston is on the exhaust stroke and the crankshaft needs to be rotated one full turn (180ยบ). This will guarantee that both valves are fully closed so accurate valve adjustments can be made. "

First of all, does he mean 180 or 360? Never heard of a full turn of anything being 180 before. Second of all, is this all I need to find TDC? Just turn crank until both valve stems are not moving and both show a gap?


PS-ooops. Are urls not allowed, or is that particular one not allowed?
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  #47  
Old 09-01-2016, 10:10 AM
J-Mech J-Mech is offline
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Hope someone helps you out. Seems you could use it.



I would but, you know:

http://www.onlycubcadets.net/forum/s...6&postcount=26
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  #48  
Old 09-01-2016, 10:36 AM
Wayne Wayne is offline
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Originally Posted by J-Mech View Post
Hope someone helps you out. Seems you could use it.



I would but, you know:

http://www.onlycubcadets.net/forum/s...6&postcount=26
As you know, I don't want help that must be washed down arrogance.

BTW, kind of surprising you thought I needed to rebuild my carb, when the symptoms pretty clearly suggested valve problem from the start. That was the first thing the nearest shop suggested when I called them. But I'm sure you're as good as you think you are.
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  #49  
Old 09-01-2016, 10:58 AM
J-Mech J-Mech is offline
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But I'm sure you're as good as you think you are.
I am.

I thought you said the carb was full of "gravel".... With that info, I'd say a rebuild is in order.

All I can give advice on is based off given info. If you don't like the diagnosis, maybe the supplied info is not accurate.
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  #50  
Old 09-01-2016, 11:02 AM
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It's that url that's not allowed.
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