For certain AD models, GMC offered electric temperature gauges with an electric
sending unit that looks very similar to the 12V unit offered in the later 50s
(except it's a treaded top instead of a clip top). Because of it's uniqueness,
I like the electric gauge over the capillary setup you describe. However,
looks like lack of information on the electric gauge may be the downfall.
>>> "Rob Jacobs" <rjj0msj@ix.netcom.com> 05/04 11:05 AM >>>
Hmm, unless you have a different type gauge than on the Chevy, the temp.
gauge is not controlled by electricity. It is comprised of a bulb that fits
in the water jacket, and has a copper line that registers on the gauge.
This system is filled with ether, I believe, and must not be bent too much
or you will lose the ether and then the gauge will stop working. If yours
uses electricity, then either GMC used a completely different arrangement,
or someone has modified your gauge.
Rob
----- Original Message -----
From: Allen L. Jones <ALJ@hartcrowser.com>
To: <oletrucks@autox.team.net>
Sent: Tuesday, May 04, 1999 8:55 AM
Subject: [oletrucks] Speaking of Gauges......
> I'm wringing out the temperature gauge on a GMC (pre '54) and wanted to
know if the AD GMCs were also 6 volt. The temp gauge seems to want to work
at higher voltages (like near 12V, but just flickers at 6V), but I'm afraid
I'm going to see this little puff of smoke if I crank up the power supply
and approach 12V. The resistance across the two gauge coils check ok.
Suggestions? Thanks.
>
> >>> "Rob Jacobs" <rjj0msj@ix.netcom.com> 05/04 7:46 AM >>>
> I assume you mean the 1954 version (and later) of the 235 (full pressure
> engine). And while you are correct that they used a 0-60 gauge, it was a
> dished out gauge versus the flat face in the pre-'54 AD years. I THINK
this
> gauge would work (I have one but never tried it in the cluster), but its
> appearance would IMHO stand out from the rest of the gauges.
>
> Rob
> ----- Original Message -----
> From: Doug Pewterbaugh <dpewter@email.msn.com>
> To: Rob Jacobs <rjj0msj@ix.netcom.com>; John Maertens
<mcdac@rconnect.com>;
> <oletrucks@autox.team.net>
> Sent: Tuesday, May 04, 1999 4:37 AM
> Subject: Re: [oletrucks] Oil Gauge
>
>
> > I also think that when the 90mph speedos started coming out (for 235
> > optioned trucks) that the gauges were also upped to 60psi. I just
bought
> a
> > NOS gauge cluster & it already had 0-60psi, 220F & -50 to +50 amps (vs.
D
> to
> > C).
> >
> > Regards,
> > Doug Pewterbaugh
> > dpewter@msn.com
> > Denton, TX
> > 49 3104 216 5-Window
> > -----Original Message-----
> > From: Rob Jacobs <rjj0msj@ix.netcom.com>
> > To: John Maertens <mcdac@rconnect.com>; oletrucks@autox.team.net
> > <oletrucks@autox.team.net>
> > Date: Monday, May 03, 1999 5:14 PM
> > Subject: Re: [oletrucks] Oil Gauge
> >
> >
> > >John,
> > >
> > >Hope you don't mind if I step in a answer the first part. A 0-60 oil
> gauge
> > >is found on AD GMC's, and although a different color, is a direct swap
> for
> > >the Chevy 0-30 gauge. The refacing kits (decals) available from Chevy
> Duty
> > >and others, comes with both a 0-60 and a 0-30 decal, so you can do both
> > with
> > >one kit.
> > >
> > >Rob
> > >----- Original Message -----
> > >From: John Maertens <mcdac@rconnect.com>
> > >To: <MASK4335@aol.com>; <oletrucks@autox.team.net>
> > >Sent: Monday, May 03, 1999 8:21 AM
> > >Subject: Re: [oletrucks] Oil Gauge
> > >
> > >
> > >> Mike,
> > >> I knew that I saved this message for some reason....
> > >> First I was wondering where you got ahold of a 0-60 psi oil gauge?
and
> > >> now it seems that my gas gauge is not telling me the truth anymore.
> > >> Either that or I'm getting really great gas mileage. I haven't looked
> at
> > >> it yet but thought that I would start w/ the wires and sending unit.
> Any
> > >> other tips? Here's what it does:
> > >> With key off it is on E (like normal)
> > >> Stays on E with key on (not normal)
> > >> When the engine starts needle goes to F and stays there until key is
> off.
> > >> Any help here would be appreciated.( others on the list too!)
> > >> Thanks,
> > >> John '51 1/2 Ton
> > >> Minnesota
> > >>
> > >> MASK4335@aol.com wrote:
> > >> >
> > >> > In addition to fixing my gas gauge, I also replace the original
0-30
> > psi
> > >oil
> > >> > gauge with a GMC 0-60 psi gauge. I am now able to see that my 235
> > holds
> > >about
> > >> > 40-45 psi at idle and 50+ at road speed with 10W-30 Pennzoil. R&R
> was
> > a
> > >snap
> > >> > and with the correct decal, it looks like it belongs there.
> > >> > Mike Klepp
> > >> > '48 3100
> > >> > Wichita Falls, TX
> > >> > oletrucks is devoted to Chevy and GM trucks built between 1941 and
> 1959
> > >>
> > >> oletrucks is devoted to Chevy and GM trucks built between 1941 and
1959
> > >>
> > >
> > >oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> >
> >
> >
> > oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> >
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
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