XE Motor into ZJ - help with carbon canister and air con wiring

[ZJ 'lane 24]

HI all, the engine bay in the ZJ is now in primer and we are test fitting the engine and gearbox to make sure it all goes in ok and to work out how not to scratch the new paint when we get to the end.

 

However, we’re having trouble trying to work out how the carbon canister and the air conditioning connects up. The motor is out of an XE Fairmont and has some slight differences to the original motor that was in the ZJ; mainly a canister purge valve and what we think is the Vacuum Advance Control Valve for the air con.

 

Could someone explain how the Vacuum Advance Control Valve works (if in fact that’s what it is)? We would expect it to be connected to the air con wire so that the timing is advanced only when the air con is on. However, the wiring also connects to the choke. This is how it was wired up when we bought the motor. As we never saw the motor in the car, we're not sure if this is actually correct. If we wire it up to the 9v connection from the back of the alternator so that the choke works correctly, the vacuum advance would be on too (ie all of the time). This doesn’t sound right.

 

Also, would the outlet tee to the right then go to the carbon canister? If so, then would we need a different canister as the current one only has two connections; one “Purge” (which connects to the purge valve) and one “To Tank” (which is already set up). The Ellery's that we have seems to indicate this.

[ZJ 'lane 24]

[revhead 1,392]

your going backward with pollution gear ,just delete everything ,from the xf donk thats not required ,with the canister ,make sure you ,run it to a vacuum line ,but before you do this push a steel ball up the vacuum to blank it off.

[revhead 1,392]

\vacuum only

[ZJ 'lane 24]

Hi all,

 

Thanks for the info, we've sorted out the carbon canister, so all's good there.

 

However, does anyone know how the vacuum advance control valve works?

 

It seems to be hooked up to the same wire as the choke.  But that doesn't seem right as it would be on all of the time and not just when the air con is on.  Does anyone know if the wiring is correct?  Does anyone have a picture of an original engine bay with this hooked up?

[revhead 1,392]

blue wire is for aircon

 

not red with green tracer

[ZJ 'lane 24]

Yep, already know blue is for air con.

 

But what does the black wire that goes to the choke and the vacuum control plug into.  Normally, yellow goes to the choke.

[revhead 1,392]

some weber carbs, had a little switch ,below the idle solenoid that ran a black wire,i cant tell you what it did as i deleted it, most of the time ,if the motor idles and runs fine tape it back into the harness