North American Turbocoupe Organization



Got the 86 Automatic running QUESTIONS
RDOG Offline
Posting Freak
#1
I got my 1986 automatic running yesterday. She started on the first turn of the key. Like music to my earsSmile
http://www.youtube.com/watch?v=EWh0cz-qbqw
Since its the first automatic I have ever owned, I have a few questions.

1) The car has no brakes. The peddle goes all the way to the floor.It will stop, but I dont want to take any chances. Is this a vacuum issue? What should I be checking.

2) What is safe and normal boost for an auto? 10? 12?

Lastly, I installed a top mount intercooler and havent run vacuum lines in a long time for bone stock setup.

From looking at this diagram.
http://turbotbird.com/faqs/Vac_Diagram.htm
-the fitting at the intercooler goes to vacuum tree and the other port goes to snout of the turbo.
-Stock boost solenoid; one port goes to snout of the turbo and other port on solenoid goes to wastgate actuator
Is all that correct?


3)
1986 Turbo Coupe. Boport StageIII head, Boport 2.1, Performance Techniques 50 trim hybird, StageII.63, stinger 3" exhaust, Phenolic spacer, Boglog header,NPR FMIC intercooler setup, kirban fpr, bigrmotorsports fuel rail, diablo water meth kit, CAI, remote mount TFI, CHE rear adj control arms, MAC girdle, 8.8 rear disc, aluminum drive shaft, H&R lowerings springs Tbird Turbo Specific, y MAS!!
Reply

84TBirdTurbo42 Offline
Senior Member
#2
if you had no vacuum the pedal would be hard. sounds like a possible master cyl issue.
obviously the fluid is up right?
Chris Perry
1984 Ford Thunderbird Turbo Coupe. Dead, NY rot killed her
1986 Thunderbird shell, swapping parts from the 84.
Reply

RDOG Offline
Posting Freak
#3
Fluid to the top, so there is "possibly" no leaks. I did find a big bottle of brake fluid in the trunk, so who knows.
1986 Turbo Coupe. Boport StageIII head, Boport 2.1, Performance Techniques 50 trim hybird, StageII.63, stinger 3" exhaust, Phenolic spacer, Boglog header,NPR FMIC intercooler setup, kirban fpr, bigrmotorsports fuel rail, diablo water meth kit, CAI, remote mount TFI, CHE rear adj control arms, MAC girdle, 8.8 rear disc, aluminum drive shaft, H&R lowerings springs Tbird Turbo Specific, y MAS!!
Reply

84TBirdTurbo42 Offline
Senior Member
#4
alright next question, what does it do when its not running and you push the pedal. does it still go to the floor?

can you pump up and hold pressure?

i'm wondering if the master cyl is junk.
Chris Perry
1984 Ford Thunderbird Turbo Coupe. Dead, NY rot killed her
1986 Thunderbird shell, swapping parts from the 84.
Reply

Jeff K Offline
Administrator
#5
I think Chris is on the right track here. Sounds like a bad MC to me..... probably bypassing internally.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
Reply

86XR7auto Offline
Moderator
#6
The 86 auto should 9psi...if the BCS is working correctly...

Travis
86XR7 in pieces...old time [email protected] http://www.youtube.com/watch?v=kGsz7PdEqTI 88TC stock Red RHSC [email protected], 01 Z71=Nice winter ride, 01 CVLX w/HPP wifes ride!
Reply

Not B Anymore Offline
Administrator
#7
On the BCS - one hose goes to the snout on the turbo, the other one goes to the T fitting on the compressor housing, on the side of the T with the smaller opening. The other hose on the T fitting goes to the wastegate, on the side of the T with the larger opening.
Brian Leavitt
'86 TC 5-Speed -- MS2x w/COP | 83 lb. injectors | T3/T4 50 Trim Stage 3 .63AR | Full 3" Exhaust - No Cat | Motorsport FMIC | Ranger Roller | Ported E6 | Walbro 255HP | Kirban | 20psi | 120-amp 3G | 8.8" 3.55 rear | '03 Cobra Wheels
Reply

Jeff K Offline
Administrator
#8
The auto trans cars have the BCS present, but it doesnt do anything..... it always stays closed, so max boost is determined by the WGA psi. 9 to 9.5 psi. I guess Ford thought it was more cost effective to include the non functional BCS on the auto cars during assembly even though it isnt used.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
Reply

86XR7auto Offline
Moderator
#9
You know Jeff...thats pretty interesting...maybe they didnt want to change the programming in the EEC....who knows.

Travis
86XR7 in pieces...old time [email protected] http://www.youtube.com/watch?v=kGsz7PdEqTI 88TC stock Red RHSC [email protected], 01 Z71=Nice winter ride, 01 CVLX w/HPP wifes ride!
Reply

RDOG Offline
Posting Freak
#10
So I dont really need to connect the boost ports. I can basically cap one side off and just run a line from the turbo port to WG.

Also I have no peddle even when the car is off. I had my daughter pump the brakes while I was listening by each wheel. Didnt hear anything form one of the rear brake cylinders. I bet Ithat is where my problem is. Going to work on it a little bit tomorrow.
1986 Turbo Coupe. Boport StageIII head, Boport 2.1, Performance Techniques 50 trim hybird, StageII.63, stinger 3" exhaust, Phenolic spacer, Boglog header,NPR FMIC intercooler setup, kirban fpr, bigrmotorsports fuel rail, diablo water meth kit, CAI, remote mount TFI, CHE rear adj control arms, MAC girdle, 8.8 rear disc, aluminum drive shaft, H&R lowerings springs Tbird Turbo Specific, y MAS!!
Reply





Users browsing this thread:
1 Guest(s)



Theme © iAndrew 2018 - Software MyBB