[C320-list] Temperture Sender - 3GM30F

[Chris Burti]

Thanks, though it is odd that I can see everyone elses email, so I assumed
you could see mine.

On Tue, Aug 3, 2010 at 12:08 PM, Jamie Pett <JPett at jp2architects.com> wrote:

> As requested, off- list send of test procedures, as well as 'stripped'
> version below.  (Chris, I don't have your off-line e mail)
>
>
>
> Temp Gage -
>
>
>
>  (562)699-7997 (562)699-0908 FAX
>
> SPECIFIC TEST PROCEDURE FOR TEMPERATURE GAUGE USED BY CATALINA YACHTS
>
> (Other systems may use a different procedure.)
>
> There are FOUR major sources of temp gauge problems.
>
> 1 - The temp GAUGE in the engine control panel may be defective.
>
> TEST PROCEDURE : Disconnect BROWN sender wire from "S" terminal on
> gauge. Turn
>
> on ignition switch. Pointer must deflect to extreme left. By temporarily
> shorting together the
>
> "S" (sender) and the "G" (ground) studs, pointer must deflect to the
> extreme right.
>
> Re-connect the BROWN sender wire to the gauge after the test.
>
> 2 - The brown SENDER WIRE may be DISCONNECTED from the sending unit at
> the engine or
>
> SHORTED TO GROUND.
>
> TEST PROCEDURE: Disconnect brown SENDER WIRE from terminal at sending
> unit on
>
> engine. Attach brown wire to a KNOWN GROUND, such as engine block or
> battery
>
> NEGATIVE. DO NOT ASSUME THE BODY OF SENDER IS GROUNDED. Turn on ignition
>
> switch. Pointer must deflect to extreme right, as in previous test.
> Disconnect brown wire
>
> from ground. If pointer STILL deflects to extreme right, brown wire is
> GROUNDED at some
>
> point between the sender and gauge.
>
> Check ALL connection points on brown wire or replace the entire wire.
>
> 3 - The SENDING UNIT may not be properly grounded to the engine block.
>
> TEST PROCEDURE: If the gauge tests "GOOD" and BROWN wire tests "GOOD",
> touch
>
> BROWN wire to the BODY OF THE SENDER.(the flat area where you would
> place the
>
> wrench to install the sender.) Make sure this area is free of paint. If
> pointer does not deflect
>
> to right, (as in test above), the sender body is NOT GROUNDED.
>
> Remove the sender, and inspect the threads. If necessary, remove any
> TEFLON TAPE or
>
> PIPE DOPE COMPOUND. Clean the threads, apply some coolant to the
> threads, and reinstall
>
> the sender in the engine.
>
> 4 - The SENDING UNIT in the engine may be defective or the wrong unit
> may have been installed.
>
> TEST PROCEDURE: If the gauge tests "GOOD", the BROWN wire test "GOOD",
> and the
>
> SENDER GROUND tests "GOOD" the sending unit in the engine is defective
> or the "WRONG"
>
> unit may have been installed. The "CORRECT" sending unit has a
> specifaction of:
>
> STEWART WARNER, 240 TO 33 OHMS RESISTANCE
>
> There are several other resistance specifications available but those
> sending units WILL NOT
>
> WORK in this application.
>
> TEST PROCEDURE, W/TEMP GAUGE
>
> PANEL DEPARTMENT April 22, 2003
>
> * WHITTIER, CA. 90601 * * SEAWARD PRODUCTS *
>
>
>
> Fuel Gage -
>
>
>
> (562)699-7997 (562)699-0908 FAX
>
> SPECIFIC TEST PROCEDURE FOR FUEL GAUGE USED BY CATALINA YACHTS
>
> (Other systems may use a different procedure.)
>
> There are FOUR components in the fuel gauge system on Catalina Yachts
> and therefore four
>
> possible sources of fuel gauge problems.
>
> 1 - The FUEL GAUGE in the engine control panel may be defective.
>
> TEST PROCEDURE : Disconnect PINK sender wire from "S" terminal on gauge.
> Turn on
>
> ignition switch. Pointer must deflect to extreme left. By temporarily
> shorting together the
>
> "S" (sender) and the "G" (ground) studs, pointer must deflect to the
> extreme right.
>
> Re-connect the PINK sender wire to the gauge after the test.
>
> 2 - The PINK SENDER WIRE may be DISCONNECTED from the sending unit at
> the tank or
>
> SHORTED TO GROUND.
>
> TEST PROCEDURE: Disconnect PINK SENDER WIRE from terminal on sending
> unit in
>
> tank. Attach pink wire to a KNOWN GROUND, such as engine block or
> battery NEGATIVE.
>
> DO NOT ASSUME THAT FUEL TANK IS GROUNDED. Turn on ignition switch.
> Pointer
>
> must deflect to extreme right, as in previous test. Disconnect pink wire
> from ground. If
>
> pointer STILL deflects to extreme right, pink wire is GROUNDED at some
> point between the
>
> sender and gauge.
>
> Check ALL connection points on pink wire or replace the entire wire.
>
> 3 - The BLACK GROUND WIRE may be DISCONNECTED from the sending unit at
> the tank
>
> or NOT GROUNDED at the other end.
>
> TEST PROCEDURE: If the gauge tests "GOOD" and PINK wire tests "GOOD"
> attach pink
>
> wire to the black GROUND wire on the sending unit at the tank. If
> pointer does not deflect
>
> to right (as in test above) the black wire is NOT GROUNDED.
>
> Follow the black wire from the sending unit in the tank and make sure it
> eventually
>
> CONNECTS TO FROUND.
>
> 4 - The SENDING UNIT in the tank may be defective or the wrong unit may
> have been installed.
>
> TEST PROCEDURE: If the gauge tests "GOOD", the PINK wire test "GOOD",
> and the black
>
> GROUND wire tests "GOOD" the sending unit in the tank is defective or
> the "WRONG" unit
>
> may have been installed. The "CORRECT" sending unit has a specifaction
> of:
>
> STEWART WARNER, 240 TO 33 OHMS RESISTANCE
>
> There are several other resistance specifications available but those
> sending units WILL NOT
>
> WORK in this application.
>
> FUEL GAUGE TEST PROCEDURE
>
> PANEL DEPARTMENT April 22, 2003
>
> * WHITTIER, CA. 90601 * * SEAWARD PRODUCTS *
>
>
>
>
>
> Jamie Pett
>
> Bella Luna
>
> #614
>
>


-- 
Chris Burti Farmville, NC