Re: It's starting to my spider now...

["Dean W. Cains" <dwc@xxxxxx>]

Hi Greg:

There are three different varieties of Spider tachometer, at least on the 
105/115's).

If you've got a Duetto or Kamm-tail up to about '78, the tach is 
mechanical, and driven by a cable coming from a drive gear at the bottom of 
the water pump.  First thing I'd do is give the tach housing a sharp slap 
while the engine is running, and maybe that will wake the tach 
up.  Otherwise, check the fitting of the cable on both ends, and if they're 
properly attached, you may have a broken cable.  And, of course, the tach 
might just be broken, but I haven't seen that happen yet.

On all the later (~'79 -on) cars, the tach is electronic.  Problem could be 
a loose wire, bad ground, cold solder joint, etc.  Inoperative tach's (and 
speedo's, too) on the single-pod dashes are a way of life.

In any case, you can drive the car all you want without making anything 
worse, and it's not likely that your tach ever read correctly, anyway.

Regards,

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


At 01:31 AM 3/24/2003, you wrote:

> Date: Sun, 23 Mar 2003 20:57:44 +0000 (GMT)
> From: greg@domain.elided
> Subject: It's starting to my spider now...
>
> and of course I didn't as much attention as I should have when previously
> discussed.
>
> I went outside to move my Spider with plans on driving it later today. The
> tach didn't spin. Not even after a little "revving". I know sometimes it
> doesn't register immediately after starting while at idle, but after a
> quick blip of the throttle it usually works just fine.
>
> Any ideas of things I can check quickly and easily while parked on the
> street before going for a drive? Should I postpone the drive because
> something might get worse and be more expensive to fix?
>
> TIA,
> Greg
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