1992 T-Bird LX 5.0 AOD swap - TCCoA Forums

 
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post #1 of 13 (permalink) Old 04-27-2017, 06:54 AM Thread Starter
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1992 T-Bird LX 5.0 AOD swap

Hi all

I swapped a 1989 T-Bird SC AOD into my 1992 T-Bird LX 5.0 L and I reused the old TV Transmission Valve Cable. Unfortunately it is much too short, if I mount it correctly on the retainer, the Valve is always fully engaged and the tranny doesn't switch out of 1st gear. If I let it hang loose (not fixed in the retainer) it works, but shifts up too late.

Does anyone have some recoomendations, about what I can do?

Thankx

Ploppy
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post #2 of 13 (permalink) Old 04-27-2017, 07:25 AM
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You reused the old TV cable out of the LX, or the old SC TV cable?

If the former, triple check your routing; it should still fit.

But if it doesn't, Lokar makes a nice generic kit you can sub in, although you may have to reroute the run a bit.

Oh, and DON'T DRIVE THE CAR. You'll burn that transmission out shortly like that.

RwP

Fuelly
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post #3 of 13 (permalink) Old 04-27-2017, 07:55 AM Thread Starter
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Hi Ralph

Thank you for your quick answer.

I used the one from the LX as the SC one was even much shorter, as the throttle body is much more behind than on the LX.

If I have no time to order a Lokar kit, could it be possible to just use a metal extension to be mounted on the TV Valve on one side and at the end of the TV cable brass part on the other side, as shown in my attached drawing?

Thank U a lot for helping

best regards

Ploppy
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File Type: jpg IMG_20170427_144646.jpg (1.85 MB, 1 views)
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post #4 of 13 (permalink) Old 04-27-2017, 07:57 AM
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The SC and the 5.0LX TV cables are exactly the same. You did something wrong on the install.

-91 Cougar LS, coming soon, complete overhaul with a 427" Windsor.
-90SC 5-speed, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, soon to be transplanted into...
-90 XR7 5-speed black on black w/sunroof
-98 Mark VIII LSC, Procharger P600b, TR3650 swap and 3.73s.
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post #5 of 13 (permalink) Old 04-27-2017, 08:04 AM Thread Starter
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Hi MadMikeyL

No, the one from the SC donor was over 5 inches shorter between the retainers.

But there is a 1990 SC sitting around in my backyard, I will compare those 2 again, maybe the other is longer

Thank U

regards

Bruno

Last edited by ploppysator; 04-27-2017 at 08:10 AM.
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post #6 of 13 (permalink) Old 04-27-2017, 09:16 PM
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If it is shorter, then it wasn't from an SC. The SC and the 5.0 MN12 have the throttle body in the exact same place, use the exact same throttle cable, intake tube, and TV cable.

-91 Cougar LS, coming soon, complete overhaul with a 427" Windsor.
-90SC 5-speed, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, soon to be transplanted into...
-90 XR7 5-speed black on black w/sunroof
-98 Mark VIII LSC, Procharger P600b, TR3650 swap and 3.73s.
-70 Torino GT Fastback project car. Needs EFI and a manual trans, but I'm not sure what motor to go with yet.
-"Your buddy Mike is INSANE!" -ClintD's dad
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post #7 of 13 (permalink) Old 04-28-2017, 07:20 AM Thread Starter
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Red face ...fixed

Hi all

I took all three out and:

the Cable out of the 89 is the shortest, but the difference is only 2 inches compared to the 92 LX
the Cable out of the 90 is 1 inch shorter than the 92 one
i took a picture from the 90 and the 92 one and will add it here.

What I did finally is taking a rubber water plug from a Chrysler LeBaron (cylinder hat shaped, about 1 1/2 inch long, no idea, where it was placed in this car), cutted it longitudinally, then I pushed it on the TV cable, behind the retainer, and fastened the TV cable with a long screw at the retainer and now:
The car is driving like new and all gears work smoother than ever....

See my nice drawing, please

thank U for all the kind and very appreciateable help

best regards

Ploppy
Attached Images
File Type: jpg Ford Thunderbird 1990 SC and 1992 LX TV Cable difference.jpg (1.08 MB, 4 views)
File Type: jpg IMG_20170428_141614.jpg (1.99 MB, 1 views)
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post #8 of 13 (permalink) Old 04-28-2017, 07:28 AM
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Quick question, does your TV cable run UNDER the fuel rail? On mine it does and it seems odd to route it through there, but that actually might be the shortest route.

5.0 V8 BTW, just curious. Thinking if nobody else's does, I'll reroute mine to above the fuel rail.
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post #9 of 13 (permalink) Old 04-28-2017, 08:00 AM Thread Starter
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on the 5.0 B8 it runs over the fuel rail
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post #10 of 13 (permalink) Old 04-28-2017, 08:06 AM Thread Starter
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Quote:
Originally Posted by MadMikeyL View Post
If it is shorter, then it wasn't from an SC. The SC and the 5.0 MN12 have the throttle body in the exact same place, use the exact same throttle cable, intake tube, and TV cable.
From my old pictures I saw, that the throttle from the '92 is a little bit more on the driver side, than it was on the '91, as the entire intake on the 92 is wider, I believe, this could make the difference in the TV cable length, but not cause the problem with the smaller end on the TV side on the transmission, this could be caused by a different gear housing (I found out, that the main problem is the position of the retainer and not the length of the cable)
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post #11 of 13 (permalink) Old 04-28-2017, 08:50 AM
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Quote:
Originally Posted by ploppysator View Post
on the 5.0 V8 it runs over the fuel rail
Looks like re-routing time!
Relatively simple...
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post #12 of 13 (permalink) Old 05-01-2017, 06:02 PM
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It looks like you've managed to make something work..

Anyways, As long as you're using your original TV Cable from your (5.0 MN12)..I don't see how it could be too short/long??

The only thing I can think is, maybe the shift lever is not lined up correctly??

Are the levers parallel with each other like in this pic?









Rayo..

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post #13 of 13 (permalink) Old 05-01-2017, 07:20 PM
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Like I said before, all 89-93 SCs and all 91-93 5.0 MN12s have the throttle body in the exact same place in the engine bay, and in the same place relative to the transmission, and all use the exact same TV cable. There is no difference in the intake manifold on the 5.0 from 91-93. If the cable you are using is shorter, then it is not from an SC, and it is the wrong part. It may be from a N/A V6 MN12, or it may be from a Mustang, or panther car, or something else, but if it is shorter, it is the wrong part, plain and simple. Making something that works is all well and good, if it really does put it exactly where it needs to be, but the AOD is extremely sensitive to the TV adjustment, and if it is off by just a tiny bit, you could well be replacing the trans again in a few thousand miles.

-91 Cougar LS, coming soon, complete overhaul with a 427" Windsor.
-90SC 5-speed, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, soon to be transplanted into...
-90 XR7 5-speed black on black w/sunroof
-98 Mark VIII LSC, Procharger P600b, TR3650 swap and 3.73s.
-70 Torino GT Fastback project car. Needs EFI and a manual trans, but I'm not sure what motor to go with yet.
-"Your buddy Mike is INSANE!" -ClintD's dad
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