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#11
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In article ,
Aaron Coolidge wrote: wrote: : Copper gaskets can be annealed by heating red hot and quenching in : cold water. That's how you harden them. To anneal them, heat them red hot and let them cool gradually. WRONG!! Copper behaves the same way as aluminum -- quenching from red hot results in softening -- not hardening. Steel wants to cool slowly to soften, though. |
#12
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Jon Woellhaf wrote: At the last annual, my mechanic showed me how to anneal the copper spark plug gaskets before reusing them. Is this common practice? New gaskets cost $.19 each, with a 20% discount on a box of 100. Typical charges for an A&P's time in this neck of the woods are $50/hr and up. I certainly hope it's not common practice anymore. George Patterson He who would distinguish what is true from what is false must have an adequate understanding of truth and falsehood. |
#13
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"Jon Woellhaf" wrote in message ... At the last annual, my mechanic showed me how to anneal the copper spark plug gaskets before reusing them. Is this common practice? I don't know how common it is but it's done and it's not that time consuming. Mount a steel shaft horizontally in a vise and slide the gaskets to the vise end. Below the open end of the shaft place a coffee can full of water. Slide the gaskets out to near the open end of the shaft, heat them red, then slide them off the end and they fall into the water. Including setup time you can do 100 gaskets in about 10 minutes. |
#14
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#15
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"Aaron Coolidge" wrote in message ... wrote: : Copper gaskets can be annealed by heating red hot and quenching in : cold water. That's how you harden them. To anneal them, heat them red hot and let them cool gradually. -- Aaron C. Ah no.....Orval was 100% correct. |
#16
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"Jon Woellhaf" wrote in message ... At the last annual, my mechanic showed me how to anneal the copper spark plug gaskets before reusing them. Is this common practice? I take them home and do it in my spare time. Get them red hot with a propane torch and drop em in a coffee can of cold water. |
#17
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Jon A. wrote:
And you're posting this during a discussion of the question whether or not an owner can change their own plugs. Horse - - - Cart Cart - - - Horse So that means that means that wheher the gaskets are annealed or reused without annealing is irrelevant? That the owner wouldn't benefit by knowing about using new or annealed gaskets? Come on. Dan |
#18
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Oh, please, for the love of God, don't do this. This is how you HARDEN
them, not soften them for the annealing process. Heat them red hot with a torch and let them cool in ambient air to soften them. Jim the gaskets out to near the open end of the shaft, heat them red, then slide them off the end and they fall into the water. |
#19
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[Top=-posting corrected]
RST Engineering wrote: the gaskets out to near the open end of the shaft, heat them red, then slide them off the end and they fall into the water. Oh, please, for the love of God, don't do this. This is how you HARDEN them, not soften them for the annealing process. Heat them red hot with a torch and let them cool in ambient air to soften them. Well, I guess this depends upon if your gaskets are made of copper or of iron/steal. Although, I've never seen gaskets made of iron but of course nothing is impossible. jue |
#20
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wrote in message oups.com... Jon A. wrote: And you're posting this during a discussion of the question whether or not an owner can change their own plugs. Horse - - - Cart Cart - - - Horse So that means that means that wheher the gaskets are annealed or reused without annealing is irrelevant? That the owner wouldn't benefit by knowing about using new or annealed gaskets? Come on. Dan Well, I have learned from elsewhere in this thread that NEW gaskets are DEFINITELY the way to go since there is debate as to whether the proper treatment of used gaskets is to include cold water quenching or ambient air cooling... Cheers! John Clonts Temple, Texas N7NZ |
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