Cheap?
 

$100 for a pair of valves may be cheap, but it's not as cheap as a $5 can of carb cleaner. I repeat, can these valves be cleaned or blown out? Does anyone know what the internals look like?

Is this what you are looking for...??

Yep they can be cleaned, but my problem is not dirt, it is weak springs. The parts can be replaced if you can take them apart and then weld them back together, but if you cannot do that, might as well buy new and then they last another 20 years or so.

Yep, they are not really designed to be repaired by your normal shade tree mechanic.

The problem with these Check Valves leaking, is that internal "O" ring going bad. The $5.00 can of carb cleaner is NOT going to fix that.

The valve is put together at the Factory with a rolled crimp to hold the cap on. One can grind off the crimp, to lift off the cap, to expose the internal parts like in my picture. BUT... there is no way to put it back together. How does one weld the "cap" back on without heating up that O ring and destroying it. Haven't seen it done yet.

The most practical way to cure a leaking valve is "replacement".:ThumbsUp:

There is a guy on eBay that claims he can fix them, but you will have close to $50.00 each in them, so might as well buy new. That is what I have done.

http://cgi.ebay.com/Cub-Cadet-Auto-M...item4aa9721237

I used that guy from epay. I needed 3 of them and paid around 110.00 after shipping. All three seem fine.