[DeTomaso] Junction Block? was Relays, Fans, Ammeter, etc.
Guido deTomaso
guido_detomaso at prodigy.net
Sat Oct 27 21:58:16 EDT 2012
Well I think the plastic would melt long before the solder.
Today I put everything back together, the Hella 70A relay sockets from Amazon
came without terminals, the terminal strip got here but the 70A relays did not,
so that project will be "next time".
On the ammeter I switched to:
Thin nuts against the plastic.
New full size nuts next, not quite touching the thin nuts.
Plain washers
Terminals
Plain washer on the Battery side
Extra terminal on the Alternator side
Factory serrated washers
Factory nuts
This way I could hold the new full size nuts with one wrench and tighten the
factory nuts without disturbing the thin nuts against the plastic. The factory
nuts are about flush with the terminal posts, not optimal but didn't strip out.
But it still gets too hot to touch the terminal posts, not hot enough to boil
spit though. Wrapped the bare metal with electrical tape to stop any shorts but
that's going to keep the heat in.
The needle pegs when the engine starts ... did anyone put a known current
through one of these ammeters? I don't believe I'm putting 75 amps into the
battery.
We'll see what the reliability is with this set up.
GD
________________________________
From: Larry - Ohio Time Corp <larry at ohiotimecorp.com>
To: Guido deTomaso <guido_detomaso at prodigy.net>; DeTomaso at realbig.com
Sent: Fri, October 26, 2012 7:16:41 PM
Subject: RE: [DeTomaso] Junction Block? was Relays, Fans, Ammeter, etc.
"Guido"
I am not sure soldering is the best way to go on something that can get very
hot and possibility melt the solder...
Larryo - Cleveland
-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Guido deTomaso
Sent: Friday, October 26, 2012 7:39 PM
To: DeTomaso at realbig.com
Subject: Re: [DeTomaso] Junction Block? was Relays, Fans, Ammeter, etc.
Well, I don't think the "voltmeter is better than ammeter" discussion needs
to
be rehashed.
Wanted to see if anyone had put significant miles on a stock ammeter without
a
shunt. Guess if you aren't having problems and never looked at the back of
it
you wouldn't be able to say.
Seems like soldering those terminals to the brass bar inside would be a
reliability improvement, not have to count on the clamping force which is
supported by the plastic. But I don't relish the thought of prying the
bezel
off then re-installing it.
Even if the terminal strip, relays and sockets get here Saturday, think I'll
have to finish this another time. Maybe "finalize" the arrangement of nuts
and
washers at the ammeter now, but that's all.
GD
________________________________
From: Dave <dave at damardirect.com>
To: Guido deTomaso <guido_detomaso at prodigy.net>; "DeTomaso at realbig.com"
<DeTomaso at realbig.com>
Sent: Thu, October 25, 2012 10:57:12 AM
Subject: RE: [DeTomaso] Junction Block? was Relays, Fans, Ammeter, etc.
How about eliminating the amp gauge and all of the issues with the amp gauge
&
replace with a volt meter? Just a thought.
Save the amp gauge for the next owner.
IndyDave
-----Original Message-----
From: Guido deTomaso [mailto:guido_detomaso at prodigy.net]
Sent: Wednesday, October 24, 2012 1:52 PM
To: DeTomaso at realbig.com
Subject: Re: [DeTomaso] Junction Block? was Relays, Fans, Ammeter, etc.
Well, that's funny because I would have sworn I've never dropped the column,
but
do seem to recall tightening those screws.
Yesterday I ordered the terminal strip and a handful of a Hella 70 amp
relays
and sockets, all from Amazon. Had to order more than one relay and socket
to
meet some $25 minimum, guess I could have gone to Waytek instead afterall.
Also
picked up a terminal strip from Radio Shack, I'll make a comparison when the
other one gets here.
In the meantime, will need to finalize my ammeter decision, shunt or not,
what
combination of nuts and washers to use, whether or not to include the third
wire
for some future need like a third fan ( or emergency jumper around an
open-circuit ammeter ).
Who out there has accumulated X trouble free miles with an unshunted
ammeter?
Looking for some data points.
Thanks,
GD
________________________________
From: Dave <dave at damardirect.com>
To: "MikeLDrew at aol.com" <MikeLDrew at aol.com>; "guido_detomaso at prodigy.net"
<guido_detomaso at prodigy.net>; "DeTomaso at realbig.com" <DeTomaso at realbig.com>
Sent: Tue, October 23, 2012 10:16:33 AM
Subject: RE: [DeTomaso] Junction Block? was Relays, Fans, Ammeter, etc.
Wisdom from SOBill:
Go to a hardware store and get two 8 x 1.25 mm x 40 mm (about 1 ½ inch)
bolts.
Longer is better. Do not try this without the 8 x 1.25 mm bolts.
Remove one of the steering column two rear clamp bolts completely. Screw
one of
the new long bolts into the hole where you removed the first regular bolt.
Remove the second rear bolt. Screw the second long bolt into the second
hole.
Remove the remaining two front bolts (mine are Allen head) and drop the
column
down. The long bolts will support the column, but more important, they will
align the column clamp holes when you put the whole thing back in place
with
only two hands and limited tolerance for frustration. You will thank me for
this method, believe me.
Replace the ignition switch terminal strip with a better grade terminal
strip
(Google Ideal barrier strip
#89-612 ...... cut off a 4 position section) or the Ignition Switch Bypass
relay module from _http://www.pantera-electronics.com/ingswtch.html_
(http://www.pantera-electronics.com/ingswtch.html) .
Have fun,
SOBill Taylor
sobill at aol.com
-----Original Message-----
From: MikeLDrew at aol.com [mailto:MikeLDrew at aol.com]
Sent: Monday, October 22, 2012 2:07 PM
To: guido_detomaso at prodigy.net; DeTomaso at realbig.com
Subject: Re: [DeTomaso] Junction Block? was Relays, Fans, Ammeter, etc.
In a message dated 10/22/12 10 53 22, guido_detomaso at prodigy.net writes:
>
> But what's got me momentarily stumped is, where is that notorious
> four-circuit junction block on the car, the one with the screws
> holding the wires? I know I've seen it before and even tightened the
> screws, but now can't find it.
> Is it
> perhaps under those plastic covers on the side of the steering column
> / do I need to drop the column to see it ?
>
>>>Bingo. It actually sits on top of that; you need to lower the column
(and perhaps remove the two plastic covers) to access it.
Mike
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