[alfa] RE: alfa-digest V9 #1171

["Timothy Leigh Rodgers" <timothy@xxxxxxxxxxxxxxxx>]

Date: Wed, 10 Mar 2004 14:45:25 -0500
Dean

The Veglia gauge requires a DIFFERENT sender than the Jaeger gauge.  After
an extensive search I was NOT able to find one new.  Centerline sent me the
incorrect one twice--they did not know the difference between the two types
of sending units. I finally got a used one from a friend who had several
senders that looked alike--I tested them per the below instructions and one
finally worked.

Richard Lane told me senders are available from
http://www.alfaholics.com/alfa/engine.htm but I don't know from personal
experience that these are the right ones.

See the attached correspondence I had from Les Hurlock last year--he was
absolutely right on all counts.
==
Timothy Leigh Rodgers wrote:

Oil gauge system quick-tests.GAUGE, VEGLIA. [ignition ON] Remove

wire from Sender. ----- Gauge should read MAX.Short wire to ground

---- Gauge should read ZERO.GAUGE, JAEGER.[ignition ON]Do the

same as above but gauge readings be the reverse.OPEN = ZERO. --- SHORT

= MAX.

Obviously the sender and gauge have to be of the same manufacturer. A

quick test of sender [on car or bench] using any cheap VOM. VEGLIA,

approx. 10 Ohm

JAEGER, approx. 220 Ohm.. I'll put more detail in the Files when I can,

showing resistance reading under MAX -- MIN conditions.

To remove the sender, use a THIN SECTION 14 mm open-ended wrench. Now

the really hard part. --- Correctly re-connecting the Sender wire

[you'll know what I mean when you try, at least for Weber cars!

Les Hurlock

=============================
=From: "Dean W. Cains" <dwc@domain.elided>
Subject: [alfa] 105/115 oil pressure gauge Veglia v. Jaeger

Hi Group:

I've got a '74 Spider, and I've just installed a complete set of gauges
from a 1600 Duetto ('67?).  I prefer the Duetto gauges because they have
the Italian units and legends, and as a bonus, the set I found is in
beautiful condition.

Everything works and looks great, except the Veglia oil pressure
gauge.  I'm guessing the Veglia gauge is OK, but only because it has
resistance (~51.8 ohms), rather than an open circuit or dead short.  It
doesn't react even slightly to the oil pressure sender when the engine is
running.  The original Jaeger gauge has a resistance of ~134.8 ohms across
its terminals, and works fine.

So, the questions are; is there a way to test the gauge, and/or is a
different sender required?  Or, if the gauge is bad, who can repair a
Veglia?

I just spoke to Steven at Centerline, and he seems to think the later-style
('71>)sender should be compatible with the older gauge, but I was a bit
confused by his logic in reaching that conclusion.  Anyone done this and
know for certain?  Or, anyone have a 1600 Duetto and tried using the later
sender with a Veglia pressure gauge?  I'd hate to drive the '74 without a
pressure gauge, even though I haven't ever seen the gauge in my '87 Spider,
thanks to the single pod dash design which places the pressure gauge
squarely behind the top of the steering wheel.  Thanks in advance.

Regards,

Dean
Lutz, FL
'74 & '87 Spider Veloce's
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