Re: spider distributor numbers

["Dean W. Cains" <dwc@domain.elided>]

Hi Shane:

Your distributor number is on the shaft, stamped or cast in, just above the 
clamp.  I think on your '77, it should be a Marelli S103BA.

As for other distributors that might fit, the Bosch 009, a VW unit, looks 
like it should.  I bought one a while ago to experiment with.  Two 
differences that need correction, though.  The drive dog that engages the 
oil pump is shorter on the 009, and should probably be swapped with the 
real Alfa part (fairly simple).  The big problem with the 009 is that the 
advance curve is off by miles for an Alfa motor.  The curve comes in too 
early and reaches max advance at way too low an rpm.  It's likely easier 
and cheaper to look for an old Bosch 044 or 045 distributor, as used on the 
pre-Spica 105 cars, and just drop that in.  I'm using an 044 in my '74 
Spica Spider, modified to work with a breakerless Crane XR3000 spark box 
and LX91 coil, and have been very satisfied with the results.  AR Ricambi 
sells a "performance" set of advance springs for the Marelli distributors 
that you might also try for just a few $.  I installed them in my stock 
S103BA, but there was a much bigger performance gain with the stock 044.

Regards,

Dean W. Cains
'74 Spider Veloce
Lutz, FL


At 04:36 PM 1/24/2002, you wrote:
>Date: Thu, 24 Jan 2002 11:25:52 -0500
>From: "shane murphy" <smurphy196@domain.elided>
>Subject: spider distributor numbers
>
>Does anyone know where to find the distributor number and type while its on
>the engine? Also, are any other makes able to swap distributors with Alfa's?
>ie: VW, Saab or Audi
>
>Shane
>77 spider

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