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#1
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Owner Change/rotate spark plugs?
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#2
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"Victor J. Osborne, Jr." wrote in
: Can an owner do this? According to FAR 43, one may. -- |
#3
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On 2005-02-11, Victor J. Osborne, Jr. wrote:
Can an owner do this? Make sure you have new copper crush gaskets before you start... -- Ben Jackson http://www.ben.com/ |
#4
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I purchase copper gaskets by the 100 pack and I change them out when I
rotate plugs on my airplane, but it is not often that I see a mechanic actually install new gaskets when working on an engine... Just something I tend to notice as I hang around airports... Also, only a minority seem to use a torque wrench when seating the plugs... Perhaps their hands are better calibrated than this lifetime, shadetree mechanic... And not many seem to use plug lube... There is maintenance that the owner can do on his airplane, and often do closer to engineering specifications than the bored mechanic... Now, before the licensed mechanics on this list jump on me, I am simply reporting my observations from a lifetime of being an airport bum... If you do a better job, then hooray for you... Denny |
#5
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If you're talented enough! Don't forget your torque wrench, new
gaskets and antiseize compound. On Fri, 11 Feb 2005 00:13:52 -0500, "Victor J. Osborne, Jr." wrote: Can an owner do this? TIA, {|;-) Victor J. (Jim) Osborne, Jr. |
#6
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Copper gaskets can be annealed by heating red hot and quenching in
cold water. They can be reused three or four times this way until their diameter gets too large from being squashed. Using used, unannealed gaskets can result in small leaks, and a leaking plug can carry carbon into the threads and make it really hard to remove without damaging the head's thread socket. Dan |
#7
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aolme too/aol
Seriously, Denny's observations are spot on. I purchase copper gaskets by the 100 pack and I change them out when I rotate plugs on my airplane, but it is not often that I see a mechanic actually install new gaskets when working on an engine... Just something I tend to notice as I hang around airports... Also, only a minority seem to use a torque wrench when seating the plugs... Perhaps their hands are better calibrated than this lifetime, shadetree mechanic... And not many seem to use plug lube... There is maintenance that the owner can do on his airplane, and often do closer to engineering specifications than the bored mechanic... Now, before the licensed mechanics on this list jump on me, I am simply reporting my observations from a lifetime of being an airport bum... If you do a better job, then hooray for you... |
#8
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#9
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At the last annual, my mechanic showed me how to anneal the copper spark
plug gaskets before reusing them. Is this common practice? |
#10
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No, copper is annealed by quenching rapidly.
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. |
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