Re: Spica microswitch adjustment?

[Caxambu@domain.elided]

In a message dated 12/26/01 8:23:49 PM Pacific Standard Time, Kevin Trent 
<trentkc@domain.elided> writes:

>>>>>>>>>>snip
>  The solenoid tests fine.
>
>  Question:  Is the microswitch failing or just in need of adjustment?  If 
it 
>  is the adjustment, does the plunger gap need to be closer or wider?  Or 
>  should I just replace the microswitch?  Have any digesters gone through a 
>  spica  microswitch adjustment (or replacement) that can shed their 
>  experience on the topic?
>  <<<<<<<<<<<<<<snip

I once had a situation that seemed like a bad microswitch-- the solenoid 
could never seem to close off the fuel upon decel. I was ready to tear into 
it to replace the switch. Took it to Wes. (My good luck is that his shop is 
nearby. Your good luck is TWO Alfas!) Turned out to be a failing Thermostatic 
Actuator. In colder weather it didn't have quite enough strength to actuate 
sufficiently which caused a richer mixture and slightly higher idle, even 
after the engine reached operating temp. This overpowered the effect of the 
microswitch/solenoid.
I realize this is not an exact match of your situation, but it is worth 
looking at the T.A. Specifically, make sure it provides the correct pump gap 
(measured at the reference screw) when at operating temp. This you can do 
with the pump still on the car.

--Caxambu
1969 Spider Veloce 1750
Seattle WA

--
to be removed from alfa, see /bin/digest-subs.cgi
or email "unsubscribe alfa" to majordomo@domain.elided