[Gmecm] RE: '727 mounting

[Clair Davis]

The pair of '727's I have both came from Chevy Lumina's (I think, one's an
eBay special), and IIRC they mount with wires up.  They're fairly concealed
behind a bunch of plastic junk, but still more or less in the environment of
the engine compartment.  The ECM on my Dad's 94 Corvette is up high in the
engine bay, generally below the windshield.  A lot more exposed than I
thought it would have been.  All that said, I don't see a lot of splash
shielding between the ECM and the ground on your application.  Is it
possible to fab a shield to protect it a bit more, and then use a combo of
dielectric grease and maybe silicone spray lube to help the wires shed
water?

Clair


----- Original Message ----- 
From: "Robin Handley" <Robin at FuryWorld.fsnet.co.uk>
To: <gmecm at diy-efi.org>
Sent: Wednesday, April 11, 2007 3:03 PM
Subject: Re: [Gmecm] RE: '727 mounting


> Thanks to everyone for their replies.
>
> Having stared at the problem and explored the movement range of the loom
for
> a long time today, I'd come to the conclusion that a vertical mount is the
> only solution. From a loom, ease of mounting, and access to the MEMCAL
door
> pov, it works best with the connectors facing upwards, though.
>
> I'm not sure how much protection the plastic connector cover provides,
but,
> given Hank's wise words, I'll think longer and harder...
>
> Thanks,
>
> Robin
>
> ----- Original Message ----- 
> From: <dozierhc at aol.com>
> To: <Gmecm at diy-efi.org>
> Sent: 11 April 2007 18:34
> Subject: [Gmecm] RE: '727 mounting
>
>
> > Robin....
> >
> > I would try and mount this in a verticle position with the connector in
> > the DOWN location, if at all possible.
> > My reasoning comes from experience in the automotive industry with
> > underhood modules that the condenstaion and water collection will run
down
> > the wires and away from the connectors in this way.
> > The connctors may be water-tight, but only up to a point.  Water
pressure
> > can slowly intrude, as well as the seal around the periphery of the
> > connector can detriorate, and this helps prevent water from migrating in
> > under these conditions.
> >
> > Additionally, I would use a little silicone dielectric grease on the
> > connector rubber insulators to keep them soft and pliable.
> >
> > BR,
> >
> > Hank
>
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