The early system, which was a carryover from 1960, used a Bendix booster, which required use of a remote reservoir. To add to this, though, what Moin appears to have diagrammed is similar to an early '61 power brake system, which had a vacuum reservoir mounted behind the left side headlight pod. Wow, Jim, I just spent 20 minutes collecting my thoughts on this and post my message only to see you beat me to the punch. If you look over at the passenger's inside fender facing toward the battery, are there two flat looking spots that are undrilled? The hose you have going to the canister should be going into the dash.
As you show it in your diagram, you have no hose going into the dash. There was no detail of the non-A/C arrangement.
1979 thunderbird ac vacuum manual#
I looked throught the 62 Electrical Assembly Manual but could only find the A/C type hose placement. Follow what Alan said and reduce the hose coming off of the manifold down to the size that will go into the dash to control the heater. So you can eliminate your cannister and check valve. All the T-bird suppliers have them and the clamps too if yours are too far gone.Īs for your vacuum cannister, and I wasn't aware of this until I read Alan's post, is that you do not need the cannister for a non-A/C car. They are made of rubber as you said and they direct the water further down into the engine compartment. What exactly is their purpose and is replacement mandatory? Even if not I'd like to know what exactly they're called and I may order a set for the sake of completeness. There are also 2 oval shaped openings on each side of the firewall off which hang remnants of what used to be oval shaped rubber hoses of sorts with a clamp. If you have just the heater, a hose is run from the small nipple on the tee fitting screwed into the intake manifold to an in-line fitting that steps down the vacuum hose size to allow a small hose to continue through the firewall to the heater control panel.
1979 thunderbird ac vacuum manuals#
If you have A/C, a smaller vacuum line runs from the small nipple on the tee fitting on the intake manifold to the larger nipple on the reservoir that's mounted near the battery a small hose then runs from the reservoir through the firewall to the heater control panel (hence my suggestion to get the factory assembly manuals to track everything down under the dash).
If you're intent on finding a vacuum hose routing diagram, the best thing to do is get a copy of the the '63 T-bird Electrical Assembly Manual, as this has diagrams on the heater and A/C installation and vacuum hose routing under the dash as well as to the reservoir in the engine bay.Īs for the brake booster, the larger-sized hose goes from a brass tee fitting that's screwed into the intake manifold near the carburetor on the passenger side to the larger hose nipple on the booster a smaller, formed hose goes from the small nipple on the booster to a steel line that runs down to the vacuum modulator on the back of the transmission.
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