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From: Lorn H Olsen <lorn@dynacomm.us>
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Subject: Champion Spark Plug Resisters
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Paul,

When the Champion resisters go high, new plugs are not needed. Resisters =
can be taken from old massive plugs. I change my resisters on the =
Iridium plugs whenever they go high. I have more than 1,000 hours on the =
plugs and they look like new. All of the resisters have been changed at =
least once.

Lorn

> From: paul miller <paul@tbm700.com>
> Date: January 24, 2012 11:06:44 AM EST
> .
> .
> Magnetos:  Both Magnetos had to go back on and I've never timed them =
before so it took me a few days to get the equipment and make sure I did =
everything correctly.  Today, with the help of Ed Martin we timed the =
newly IRAN'd mags to 22 degrees BTDC and then tested everything by hand =
to make sure we had sparks and in the right order.  we rotated all by =
hand for a while just to make sure everything went well and because I =
had that previous Niagara adapter problem.  I then had an idea to review =
a past LML note about resistors in Champion spark plugs.  The top plugs =
were removed so I decided to check them for fun.
>=20
> Out of the top 6 plugs, the resistances were 65,000 ohms to 2.5 =
Megohms.  =20
>=20
> A few sites suggest 1500 ohms is normal and 5000 would be the upper =
limit.  I did not test the bottom six plugs.  They are probably original =
plugs with 500 hours, massives and I guess Chapter 7 means new plugs =
which are probably overdue.
>=20
> Tomorrow we put fuel to the io550 and see how things work.   Plugs on =
order.
>=20
> Paul
> Spruce Creek


--
Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, Inst
DynaComm, Corp., 248-345-0500, mailto:lorn@dynacomm.us
LNC2, FB90/92, O-320-D1F, 1,800 hrs, N31161, Y47, SE Michigan