I don't buy new spark plug washers. For spark plug changes I heat treat the used washers with a torch until red hot and let them air cool to make them soft again. Thereby saving the planet and added expense. But today, I didn't have my torch so what to do? Well, I have a hot plate so I thought I would give it a try. I tried bending a used washer firstly and yes it was stiff, as I thought it would be since I have checked them before in this condition. Then I put the washers on the hot plate for 10 minutes. They become black but once air cooled and shaken together, the black oxides falls off and they are supple once again. This is my new method. Forget the torch.
bent with fingers
BTW: spark plugs at 650 hrs as removed. except for one that was replaced because it was dropped, #2 down. they look OK.
bent with fingers
BTW: spark plugs at 650 hrs as removed. except for one that was replaced because it was dropped, #2 down. they look OK.
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