Mailing List flyrotary@lancaironline.net Message #32085
From: Chad Robinson <crj@lucubration.com>
Subject: Re: [FlyRotary] Re: Another case of heat-soaked coils?
Date: Sat, 03 Jun 2006 20:48:16 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
John Slade wrote:
 >Hope the guy that brought this to mind (John Slade) heard it.  I still don't know what kind of junction >(connector, butt splices, bullet connectors, etc) that he used but none of them should be encapsulated in RTV >for the reason given.  That pungent smell you get when dispensing RTV is acetic acid. Yep. Heard it loud and clear.
The RTV was added in an attempt to waterproof the connector. I was concerned that the open holes were vertical, just below the water pump and might get filled with coolant in the event of a leak. Perhaps a rubber boot would be a better solution.

Actually, a good sealant does double-duty as strain relief, and is probably the better choice unless you need frequent access to the connection (so boots are better for battery terminals). You just need the RIGHT sealant. Anything designed for electrical use is probably fine. I think Bob Nuckolls (Aeroelectric) actually swears by Shoe Goo. I can't confirm its contents, but I've read several statements that say it doesn't contain "corrosive" elements. Might be a fast, cheap solution you can pick up at any mall if that's true.

Regards,
Chad
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