Technical Tips > Pre 84
Any Vacuum Experts out there!
69 DIRTY RAT:
I'm Electrifying my Head Lights and Wiper Door - so I dont need vacuum hoses to them!The Brake vacuum comes off the manifold! The question is....Do I need the vacuum hoses behind the dash for anything then? I think the vacuum controls the wiper on/off switch below the steering wheel (68-72) and wiper door lift push/pull control below the steering wheel. Does the vacuum control the on/off 2 speed wipers switch on the middle top console? does it control the heater switch in any way?
Reason being is I want to take out the Vacuum Reservoir if its not going to be used?
77CVT:
Hmmmm. I think you're going to need it. On the '77 I think it only activated the headlights, but my heater control didn't work so I don't know if you need it for that either.
Who has a '69 (that's actually running! ;-- ) that we can test this out on?
69 DIRTY RAT:
I've been on the DC site,they say I still need it! because of the wiper override under the dash and the power servo controling the heater a/c etc. But I'll probably have to block off the headlight / wiper door overrides?
Cameron 77C3:
--- Quote ---Originally posted by 69 DIRTY RAT
I've been on the DC site,they say I still need it! because of the wiper override under the dash and the power servo controling the heater a/c etc. But I'll probably have to block off the headlight / wiper door overrides?
--- End quote ---
Exactly.
Vacuum operates:-
Cruse control and hence cancel switch on brake pedal [if fitted]
Heater A/C vent controls and if fitted heater hot water valve
Head lights and wiper[as you know]
Emission control actuators, not on you beast I would imagine
Dissy, but this is straight from carby, if fitted.
And most importantly the "high speed-low frequency-warp modulator";41
69 DIRTY RAT:
I think only the power servo thing is the only thing I need the vacuum for? I'll get rid of the rest as I go! I'll keep the vacuum reservoir just incase I need something!
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