Join Date: Jan 2003
Location: Rapid City SD, Black Hills of South Dakota
Did you read the paper I wrote on buying a Spica injected Alfa?
1. Before doing anything with the Spica, the ignition system must be in good working order. It sounds like it is, since it runs well when warmed up, but you should still inspect the points for burning and the inside of the distributor cap for carbon tracking. Also check the wires on a dark night for arcing/shorting.
2. Is the fuel supply system working properly? When you turn the key switch on, does the fuel low pressure warning light (top left red light) come on momentarily, then extinguish?
3. Have you checked the engine sump oil for traces of gasoline, which would indicate that the injection pump is leaking and therefor needing overhaul?
4. You can check both the CSS and FCS solenoids (engine off, key switch off) by just running a wire from the positive battery terminal and momentarily touching the tang on top of the solenoids. You should hear a "CLICK," followed by another "CLICK" when removing the wire.
5. Are the plugs fouled with black dull soot (overrich), or shiny soot (oil fouling).
6. Have you done a compression check? (Engine warm, spark plugs removed, throttle full open . . watch how the compression builds, sharply or gradually)
If that is all good, then it's going to be time to go through the tuning process, in LOCKSTEP order. No shortcuts. Each step in the process depends on the previous step being done. On the adjustment of the relay crank (Idle and WOT stop screws), I have the jig that you use to set those stop screws. Despite it's nomenclature, the idle stop screw does NOT control the idle speed.
It's not hard, but you must have the discipline to not cut corners and start fiddling aimlessly. The Spica system WILL actually run when it's grossly out of tune, but certainly not optimally.
I HIGHLY recommend the electronic ignition module from Petronix. It will give you much easier starts in any weather condition and it never needs tuning. I've had mine for 15 years with zero problems. It's inexpensive as well and relatively easy to fit in place of the points.
Last edited by Roadtrip; 10-27-2018 at 06:41 PM.