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Date: Mon, 11 Nov 2013 13:33:49 -0500
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Subject: Re: [LML] Re: Injector cleaning
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From: Todd Long <toddlong1@gmail.com>
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Are using heated ultrasonic cleaner for small carburetors. Works great. Have=
 also used it for cleaning paint nozzles. I'm sure would work good for the i=
njectors.

Typing and grammar errors courtesy of Siri and the iPhone.

> On Nov 11, 2013, at 11:50, Neal George <ngeorge@continentalmotors.aero> wr=
ote:
>=20
> Gentlemen -=20
>=20
> Continental's recommendation is most certainly to NOT use Hoppe's No. 9 on=
 the injectors. =20
> The maintenance manuals call out lacquer thinner, MEK or acetone as prefer=
red solvents.
>=20
> Neal George
> Sales & Services Representative
> Continental Motors, Inc.
> 2039 South Broad Street
> Mobile, Alabama  36615
> ngeorge@continentalmotors.aero
> 1.800.326.0089 Customer Service
> 1.888.826.5465 Technical Products Support=20
>=20
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>=20
>=20
>=20
>=20
> -----Original Message-----
> On Behalf Of Kevin Stallard
>=20
> Hmmm,
>=20
> So much for mechanics recommendation.  I'll check it out, thanks for the h=
eads up Mark.
>=20
> Kevin
>=20
> ________________________________________
> From: Lancair Mailing List [lml@lancaironline.net] On Behalf Of Mark Slett=
en [mwsletten@gmail.com]
> Sent: Friday, November 08, 2013 1:23 PM
> To: lml@lancaironline.net
> Subject: [LML] Re: Injector cleaning
>=20
> Kevin,
>=20
> I may be wrong (someone will correct me if I am), but I seem to remember t=
he Continental rep suggesting Hoppes #9 is a not a good idea for use on the i=
njectors. Hoppes #9 is a copper solvent, and IIRC the Continental rep said t=
he injectors are made partially from brass, which is a copper-zinc alloy.
>=20
> --Mark
>=20
>=20
> On Fri, Nov 8, 2013 at 10:56 AM, Kevin Stallard <kevin@arilabs.net<mailto:=
kevin@arilabs.net>> wrote:
> I use gun cleaner.  Hoppes 9 I think is what it is (I'll verify when I get=
 home).
>=20
> Open the bottle, drop in the injectors, slosh them around gently, and let i=
t sit for 45 minutes or so.
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> They come out sparkly clean :)
>=20
> Kevin
> ________________________________________
> From:   Paul Miller [pjdmiller@gmail.com<mailto:pjdmiller@gmail.com>]
>=20
> This is what I'm using to clean the injectors in the IO550.  So far, it is=
 inexpensive and effective.  The $32 harborfreight ultrasonic cleaner is jus=
t fine for me.   It does have a short cycle which is OK for frequent inspect=
ions.  The finished product is clean outside and spotless inside.   The last=
 photo shows the troublesome deposits on my injectors.  The shot is looking i=
nto the injector from the engine side of the nozzle so that's the area where=
 the jet expands and exits into the intake manifold.  This #2 is still showi=
ng some black after an hour of repeated cycles in the bath.   These injector=
s were obviously quite dirty and overdue for cleaning.
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>=20
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