Two plugs - Neccessary?

[Bill Glaze]

A while back I had my van in the service center, (read: dealers garage) 
for some smog work.  I casually mentioned that "while the doghouse is 
off, you might as well change the plugs."  The shop superintendent, (a 
flying friend of mine) ordered it done.  $80, with the doghouse already 
off.  If I had known, I would have picked up a set of plugs, and  done 
it myself  in less than an hour.  And yes, I've done it many times. 
Bill Glaze

Wayne Galligan wrote:

> And I thought platinum plugs for these Acura's we work on where expensive.
> Acura TL  6 plugs installed  $228.00
>  
> Wayne Galligan
>
>     ----- Original Message -----
>     From: gene.maurice at comcast.net <mailto:gene.maurice at comcast.net>
>     To: discussion at nsrca.org <mailto:discussion at nsrca.org> ;
>     discussion at nsrca.org <mailto:discussion at nsrca.org>
>     Cc: Bob Richards <mailto:bob at toprudder.com>
>     Sent: Thursday, April 21, 2005 10:08 AM
>     Subject: Re: Two plugs - Neccessary?
>
>     Last time my son flew his Mooney M20J Turbo here he had to have
>     the plugs (8)replaced (power way down @ 18,000ASL, two plugs
>     dropping out). Cost installed $580
>      
>     --
>     Gene Maurice
>     AMA 3408 NSRCA 877
>     Plano, TX
>     gene.maurice at comcast.net <mailto:gene.maurice at comcast.net>
>      
>
>         -------------- Original message --------------
>
>         > John,
>         >
>         > If I'm flying in a full-scale, I like having the
>         > redundancy of two completely separate iginition
>         > systems. :-)
>         >
>         > I'm not sure what you mean about two plugs making the
>         > troubleshooting more difficult. Should be easy to
>         > isolate.
>         >
>         > OTOH, changing plugs on my Dad's 182 was an expensive
>         > proposition. Back in the 80's, each plug was $12, and
>         > there were 12 plugs. :-( I have no idea what they
>         > cost now. I guess if you can afford the fuel now, you
>         > can certainly afford the plugs. The 182 holds 80
>         > gallons!
>         >
>         > Bob R.
>         >
>         > --- John Ferrell wrote:
>         > > Thanks for confirming my suspicions!
>         > > The only dual ignition engines that I am aware of
>         > > are those in highly critical applications, full
>         > > scale airplanes and emergency services. My personal
>         > > experience with full scale has been that the second
>         > > spark plug only makes the troubleshooting more
>         > > difficult. I believe the whole idea of redundant
>         > > ignition is a concept whose time has past. There are
>         > > twice as many things to fail.
>         > >
>         > > I knew a fellow who was preparing a van for his
>         > > handicapped son. The law at the time required dual,
>         > > isolated batteries. The mechanics acknowledged that
>         > > the isolation electronics were the least reliable
>         > > part of the van. That was many years back, I hope it
>         > > is better now.
>         > >
>         > > John Ferrell
>         > > http://DixieNC.US
>         > >
>         >
>         > =================================================
>         > To access the email archives for this list, go to
>         > http://lists.f3a.us/pipermail/nsrca-discussion/
>         > To be removed from this list, go to
>         http://www.nsrca.org/discussionA.htm
>         > and follow the instructions.
>         >
>         > List members email returned for mailbox full will be removed
>         from the list.
>         > 
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20050421/ff1ba125/attachment.html