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#1
02-22-2016, 07:43 PM
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1966 tripower vacuum lines
I have a 1966 tripower in my 1962 GP. I would like to know where the vacuum lines for the AC, distributor advance, & tranny kick down ( I have a TH400) go.
 engine is a 1969 400. thanks.
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Mike Stuck - "Stucky" 1962 Grand Prix, 408 w/tripower, ported / polished #62s, TH400, 3.42 posi |
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#2
02-22-2016, 11:01 PM
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Going by memory, the Distributor Vacuum Advance Signal came from the normal Tee on the base of the center carb.
The A/C controls received vacuum from a hollow stud on the right rear location of the center carb. The Tranny stuff I believe came from a line that went to a bunch of hardware mounted to the base plate of the front carb and looped around the front of the front carb. See image attached. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#3
02-22-2016, 11:13 PM
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I ran a '66 Tripower on my '62 GP for many years. It also had A/C.
On the '66 Tripower, one of the carb studs is hollow to provide manifold vacuum to the HVAC system. You can get manifold vacuum off the base of the center carb for distributor and transmission via a tee fitting which Ames sells. Use the driver's side of the tee for distributor and the driver's side for the transmission vacuum modualtor. These tees are for earlier Tripowers, but will work on your '66 setup. If you have power brakes, there is a fitting and steel tube that attaches to the base of the front carb.
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BONESTOCK GOATS '64 GTO Tripower Hardtop (Wife's Car) '64 GTO Tripower Post Coupe (My Car) '99 Bonneville SE Sedan |
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#4
02-23-2016, 12:14 AM
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How much vacuum is needed to operate these?
__________________
Mike Stuck - "Stucky" 1962 Grand Prix, 408 w/tripower, ported / polished #62s, TH400, 3.42 posi |
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#5
02-23-2016, 02:10 AM
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How much vacuum to operate what? If you have 12-13" of vacuum, power brakes and the other accessories should be fine.
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BONESTOCK GOATS '64 GTO Tripower Hardtop (Wife's Car) '64 GTO Tripower Post Coupe (My Car) '99 Bonneville SE Sedan |
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#6
04-26-2023, 12:20 PM
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Picking up on this old thread.....which manifold fitting should I use to add the console mounted vacuum gauge to via a nylon "T"? FWIW - the transmission vacuum line set-up is as shown in Tom's picture from 2/2016
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#7
04-26-2023, 01:19 PM
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Use a nylon tee in the vacuum line to your distributor or off the line going to the hollow carb hold down stud.
__________________
BONESTOCK GOATS '64 GTO Tripower Hardtop (Wife's Car) '64 GTO Tripower Post Coupe (My Car) '99 Bonneville SE Sedan |
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#8
04-26-2023, 01:30 PM
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Thanks Dick, I'll try the dist. hose first
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