2N Valve Removal

rapidfire

Member
I'm working on a 2N that had a stuck piston. Before buttoning it back up, I want to lap the valves. I am having problems getting them out. The guides will not budge. I should also mention that I first cleaned them up the best I could with carb cleaner and been spraying PB Blaster on them each day.

I tried modifying a screwdriver to pry them down (as seen on this site) but no movement. I have tried multiple valves. I can move the clips back and forth so I know they're not the problem. They appear to be the original two piece guides.

Today I compressed a spring and took out the retainer clip on the bottom (1 piece clip) and slid off the spring. I can not remove the valve itself since it's the older mushroom type. I tried to work around it with it as far up as possible and drive the guide down with a punch. No luck.

Is my only choice to cut off the mushroom end, remove the valve and drive out the guide with something (socket maybe)? I was hoping to reuse them if possible.

Just looking for ideas. Thanks.
 
Is my only choice to cut off the mushroom end, remove the valve and drive out the guide with something (socket maybe)? I was hoping to reuse them if possible.

Just looking for ideas. Thanks.

Sounds like they are stuck tight and cutting off the head may be the most practical way to go . I probably have a couple sets of used mushroom stemmed valves that I will never use . I would be glad to send them to you . They are not worth trying to sell on ebay and I hate to throw them away .
 
Here is a photo of a tool used to reach under the valve head and drive the guide downward. It may
break the guide loose from the carbon.
s-l225.jpg
 
(quoted from post at 19:33:21 05/16/17) Here is a photo of a tool used to reach under the valve head and drive the guide downward. It may
break the guide loose from the carbon.
s-l225.jpg

Do you know what this is called or where to get one? That looks different from the valve bar I seen online for about $35.
 

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