I do disconnect the relay.  I guess I should salvage a male connector pin from 
my parts car and make the gp tester more efficient.

Luther

On Thu, 13 Dec 2007 09:40:33 -0600, Jim Cathey <[EMAIL PROTECTED]> wrote:

>> Don't you have a 30-0-30 ammeter?  Put some 10ga wire on both ends of
>> it, clip one end to the + terminal of the battery, touch the other end
>> to the exposed tip of your installed gp's.  Each one should peg out,
>> then over 3-5 seconds drop in current to about 10-15A and settle in
>> there.  If it stays pegged out, the plug is shorted, if you get no
>> current, it's open.  Very simple and quick test.
>
> Make sure you've electrically isolated the DUT from the others,
> the easiest way with a parallel relay is just to unplug the GP
> connector at the relay.  In fact, if you perform the test at the
> connector you also test out the wiring to the plug.  The relay
> shorts them all together at all times, so if you don't unplug
> it you're just testing all the plugs in parallel.
>
> With a hack job to a series relay, breaking the connections is
> up to you to do in the best way.  That may be just disconnecting
> each plug from the wiring in turn.  That's harder!
>
> -- Jim
>
>



-- 
Luther   KB5QHU    Alma, Ark
'87 300SDL (272,xxx mi) head case
'85 Ford F250 6.9 diesel (x58,xxx mi)
'82 300CD (166 kmi)
'82 300D  (74 kmi) getting donor engine-sold
'85 300D (280,176) parts car sans engine

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