Re: [DML] Part X-ref
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Re: [DML] Part X-ref



The Vacuum solenoid is activated when the throttle idle switch makes
contact, i.e. when accelerating. The solenoid then allows vacuum to the
vacuum advance mechanism on the distributor. The only other thing to
remember is that until the engine reaches a certain temperature, the
vacuum supply goes to the warmup regulator. When the engine has reached
temp, the flow of vacuum is diverted by the Thermal control valve (part
no 30 page 2.4.0) to the solenoid valve, and on acceleration to the
vacuum advance.
As to cross over ref, I don't know of a bosch no, but it may be worth
you having a word with local Volvo dealer. I'm sure some of the 760
models had emission control on them and the part might appear.
I have no idea why it should have been removed but the above might help
you decide why.
Graham

----- Original Message -----
From: "Martin Gutkowski" <webmaster@xxxx>
Subject: [DML] Part X-ref

> In overhauling the engine on #2727, we've discovered a part missing.
> It's on p2-4-0 of the parts manual, no 27, part 101116 Vacuum Solenoid
> Valve part of the "evaporative control system".
> What does this solenoid do and is there any reason for it to be
removed on an engine with the Island twin kit?





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