IIRC, the "Sentry system" was "self-contained" in the instrument cluster,
and took voltage readings from the voltage limiter/gauges. I do not
remember "dual" sending units on Imperials.
As for the little "clip" that retains your cooler lines, seems to me that we
(mechanics) were instruted (probably via a "TSB") to remove and discard
these things as they were cutting through the cooler lines and causing leaks
(this part was subsequently re-designed later on, - and a replacement is
available. Try "The Paddock", - they have them, and they are of the
"redigned" style, and are all the same regardless of body & trans.
Trans coolers? Only with trailer tow packages on Imperials (or New
Yorkers/whatever until the 426 Hemi engines appeared).
No doubt your cooler line has been "modified". I believe you can also buy
new cooler lines should you desire, - but since they are all made for the
"musclecars", - you might have to do a little "fabricating" at the radiator
end(s) of them.
Regards,
DaveG.
----- Original Message -----
From: "Ken & Tracie" <kjosephson@xxxxxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Wednesday, July 21, 2004 2:36 AM
Subject: IML: 1968 Sentry Signal & Other 1968 Questions
> I'm tracing my '68's wiring harness under the hood to get ready for engine
> installation. I am confused by the Sentry Signal system mentioned in my
shop
> manual. (It doesn't take much to confuse me.)
>
> So do these cars use two water and two oil sending units? One set for the
> gauges and another set for the Sentry Signal? If not, how does the Sentry
> Signal tie in with the rest of the system?
>
> Also, if these sending units aren't still available from NAPA, who
supplies
> them? I also need a new starter relay and will be checking with NAPA for
> that.
>
> It looks like the small bracket that holds the tranny cooling lines near
the
> bellhousing is missing. I 'm guessing this a salvage yard only part. Is
one
> type unique to Imperials, or do all late '60s B/RB-727 passenger cars use
> the same piece?
>
> One transmission cooling line ends abruptly at the bottom of the firewall
> (where the transmission tunnel begins) with a female connector facing
> straight back. I am guessing there was an extension attached here. The
other
> line continues further back and turns toward the transmission's location.
I
> don't have the tranny back from the shop, so I don't know how the shorter
> line enters the transmission. Looking at the drawing in the shop manual,
> neither line shows a coupling that far back, but as we all know, these
> drawings aren't always accurate. Perhaps the line was once one piece and
was
> spliced sometime during the car's life.
>
> This reminds me of a question I've been forgetting to post for
> months.....this car has an auxillary transmission cooler. Do all '68
> Imperials have this extra cooler, or just ones with A/C and/or the trailer
> towing package? This cooler looks just like the ones I've seen on Mopar
> police cars, taxis and trailer towing package cars. In fact, it is
virtually
> identical to one I saved off a '78 Fury police car I parted out almost
> twenty years ago.
>
> As always, thanks for any help you can provide.
>
> K.
>
>
>
>
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