Stuck valve on WC: Fix without pulling head?

Is it stuck open or closed? 

Edited by CrestonM - 15 Aug 2016 at 6:34pm

you might do what we did with the big radial aircraft engines(2800 and the 3350).called staking the valves.remove the rocker amr,lube the valve stem with croil and tap the valve with a rubber mallet or a wood hammer.....

Take the tool you have and remove the keepers and spring. Then put some paint thinner in a squirt bottle and shoot some thinner on the stem and tap it with a piece of wood. You might put some tape around the very top of the valve so it doesn't fall down on the piston. As suggested Kroil is really good penetrant to loosen things up too.

Might do more harm than good if it wont move with pry bars or vise grips.
   Any more than that you might damage the head if it is bent like you suspect.
   Might be more work but better and maybe cheaper in the long run to pull the head.

    Yep,,Yep,,,you just gotta love a guy like ole Dick Lemmon,,,,,always got some good suggestions with tongue in cheek,,,,,,
   There IS one other suggestion,,,get you an old spark plug, break off the porcellin and weld a 1/4"  quick coupler on the spark plug. Remove all the spark plugs and install your new "tool" into the cylinder with stuck valve.  Make sure tractor is in neutral,,!!! .Remove valve cover and Hook your air hose onto the coupler. tapping on valve while air pressure is on cylinder "might" start moving the valve to the closed position. This should work to free valve unless,,,,,valve is bent,,in which case you are money ahead to pull head, cause you will ruin the valve guide tryin to force it outa there,,,,Hope this helps,,,,

take spark plug out turn piston down push around to feet of small rope in cyl' turn motor wear piston goes up should push valve up' lube it thin you can work it up or down pull rope out try it' worked for me lot's of times

What is the likelihood its bent? I'd say little.What would be the cause?Soak and tap.

Pull the manifold and look at stem. Do not put anything in the cyc.

Piston can not hit valve to bend it with stock piston.

Edited by Fred in Pa - 16 Aug 2016 at 12:01pm

It takes about 1 minute of fooling around to make the problem 1000 times worse, and much more expensive.  It takes about 20 minutes to remove the head, once the coolant is drained, and you can repair it correctly, and it will last.  May cost a bit more, but it won't stick again, if you keep it dry.

j.w.freck wrote: I believe we solved the problem,orangeblood,sure is better than swolling a valve ,busting a rod,ruinening a head or a sleeve or possibly busting a crankshafh.....

AMAZING

I finally pulled the head and the root cause was that the valve was simply stuck from sitting (tractor was sitting inside a dirt floor machine shed for ~3 yrs).   Without seeing this myself, I wouldn't have believed it how tight that vavle was.    Little more background...the engine was a donor that had appeared to have been rebuilt recently so the guides were maybe tighter than something with 2000 hrs on it. I also thing the rope trick would have worked.