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fuel problems on a 4340

If the copper washers are hard to get it may be possible to anneale (sp?) the old ones. Piston airplane engines use copper washers on the spark plugs and they are removed and cleaned/inspected every hundred hours. Every second time we reuse them we just heat them slowly with a torch until they are cherry red and let them cool slowly. It makes them nice and soft so they will seal again.
Good Luck. Daryl (Wyoming)
 

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