[R-390] More chemicals from the dark side

[Cecil Acuff]

It's not recommended here by the majority of General Aviation owners I 
frequent...

We have an A&P on the field and most of the owners do their own Annual 
inspections under his watchful eye before being signed off on by the 
certified Inspector.

Cecil
----- Original Message ----- 
From: "rbethman" <rbethman at comcast.net>
To: "R-390 List Serve" <R-390 at mailman.qth.net>
Sent: Friday, February 04, 2011 11:30 AM
Subject: Re: [R-390] More chemicals from the dark side


> It may well have been discussed here, as is just about anything and
> everything.
>
> The Karcher Corp. that makes pressure washers, makes the pump out of
> Aluminum and Brass.
>
> They are very picky as to what should or should not be run through them.
>
> When directly contacted, they said Simple Green was just fine.  I've
> been using it for over 8 years now.  No damage or issues.  I don't even
> have to run clear water through it, although I do anyway.
>
> If it was so detrimental to aluminum, then why is it so highly
> recommended and used by General Aviation owners?
>
> Bob - N0DGN
>
> On 2/4/2011 12:21 PM, Shoppa, Tim wrote:
>> Didn't we discuss here in the past year, something about keeping Simple 
>> Green away from aluminum chassis or at least making sure it was very 
>> thoroughly washed off afterwards to prevent long-term corrosion from 
>> residues? When you gotta clean off the cleaner that you used to clean off 
>> the cleaner it starts sounding like "the old lady who swallowed the fly".
>>
>> Most of the geartrain parts are steel but I wonder if some parts might be 
>> aluminum?
>
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