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Topic: 84 Tbird window motors (Read 2550 times) previous topic - next topic

84 Tbird window motors

Hey have this 84 Tbird and window motors work but Windows don't move.  Pulled off door clip and can't see exactly how to remove window motor.  I assume that there's a gear drive on the motor which is stripped as the driven gear looks good.  Is this a common failure??  Could someone describe how to get to the window motor??

Thanks

84 Tbird window motors

Reply #1 –
Strange that it would be on both sides at once, but the issue is the nylon spools inside the motor drive mechanism being broken or worn. Good news is that part of the mechanism is serviceable and repair kits are available. You will have to remove the motor and associated mechanism from the door to repair it. The window lift mechanism is retained with large rivets that will have to be drilled out. From there, unplug the motor and remove the entire mechanism through one of the larger openings on the inside of the door (panel removed). It will take a little wrestling and a bit of profanity, but the whole rack and lift mechanism will come out.

I purchased a large blind rivet squeezer from harbor "fright" for $20 that allowed me to reinstall the entire thing once repaired.
1986 Thunderbird Elan 5.0 EFI AOD, 3.73:1 SN95 rear, 17" Mustang Bullitts w/Firestone WO Indy 500's. Future plan: 349 stroker, C9 block, forged dish pistons, Scat 9000 crank, 4340 I beam rods, ARP head/main studs, ported explorer intake, 1.72 CC RR, Vortech V2 supercharger, Mr. Freeze Meth Inj, intercooler, TFS 190 11R CNC heads (66CC), BBK shorties with 2.5" duals, 4R70W Transmission, Taurus fan.

84 Tbird window motors

Reply #2 –
To remove the motor only drill 3 holes where there are indentations in the door skin.  Those are directly lined up with the bolts on the window motor.  Drill it big enough to get a 1/4 inch extension in there and then put the extension through the hole and reach in and put on the socket.  Should be a 10mm.
84 TurboCoupe with 302 .010 over - 9.8 : 1 Forged Pistons - Edlebrock Goodies:  Aluminum Heads #6037, Intake #3821, 65mm TBI/EGR #3824/3827, Camshaft #3722 -  Interactive System & Technologies Mass Air with 24# Injectors - A9L - 3g Alternator - BBK shorties, Cat Converter H-pipe, Magniflow lers - World Class T5 1352-169 (1986, V8, WC, 3.15 3.35 1.93 1.29 1.00 0.68) OEM Clutch Cable - 7.5 Trac Lock with 3.08 and slapper bars from 82 Mustang.
 

84 Tbird window motors

Reply #3 –
You only need to remove the motor, as detailed above by custompunk.

You can buy replacement gear parts, cheap. Take off the cover plate on the motor. Remove all the broken plastic parts. Clean housing. Insert new parts. Grease. Reinstall cover plate. Reinstall motor. Done.
Long live the 4-eyes!  - '83 Tbird Turbo - '85 Marquis LTS - '86 LTD Wagon

84 Tbird window motors

Reply #4 –
Quote from: Chuck W;457068
You only need to remove the motor, as detailed above by custompunk.

You can buy replacement gear parts, cheap. Take off the cover plate on the motor. Remove all the broken plastic parts. Clean housing. Insert new parts. Grease. Reinstall cover plate. Reinstall motor. Done.


Weird, I bought a dorman 742-251 and darn thing doesn't seem to fit as the body of motor hits door before can align mounting holes.  Has anyone experienced this??

84 Tbird window motors

Reply #6 –
If it's any help, I found the the motors from an 84 Town Car to bolt right in. The motor from the passenger side REAR fits the drivers door on the Cougar/Bird and the motor from the drivers side REAR fits the passenger side door. This helps if the motor itself is defective.
84 COUGAR/90 HO, 1.7RRs, performer RPM,700DP, equal length shorties, stainless EXH ,T-5,Hurst pro-billet, KC clutch, 8.8/ 4.10s, line-lok, bla ,bla, bla.
71 COMET/289,351w heads, 12.5 TRWs, 750DP, Liberty TL, 9"/6.00s, 11.9x @112 , bla,bla,bla.

Never shoot your mouth off, unless your brain is loaded! ....I may get older, but I'll never grow up!....If you're not laughing, you're not living!  :laughing:

84 Tbird window motors

Reply #7 –
Quote from: custompunk;457067
To remove the motor only drill 3 holes where there are indentations in the door skin.  Those are directly lined up with the bolts on the window motor.  Drill it big enough to get a 1/4 inch extension in there and then put the extension through the hole and reach in and put on the socket.  Should be a 10mm.

Good info. My motor was shot (no torque) as well, so I had to pull the whole thing out to replace it.
1986 Thunderbird Elan 5.0 EFI AOD, 3.73:1 SN95 rear, 17" Mustang Bullitts w/Firestone WO Indy 500's. Future plan: 349 stroker, C9 block, forged dish pistons, Scat 9000 crank, 4340 I beam rods, ARP head/main studs, ported explorer intake, 1.72 CC RR, Vortech V2 supercharger, Mr. Freeze Meth Inj, intercooler, TFS 190 11R CNC heads (66CC), BBK shorties with 2.5" duals, 4R70W Transmission, Taurus fan.

84 Tbird window motors

Reply #8 –
Quote from: atengnr;457075
Weird, I bought a dorman 742-251 and darn thing doesn't seem to fit as the body of motor hits door before can align mounting holes.  Has anyone experienced this??
My replacement motor barely fit. The body of it was round and contacted the bottom of the door.
1986 Thunderbird Elan 5.0 EFI AOD, 3.73:1 SN95 rear, 17" Mustang Bullitts w/Firestone WO Indy 500's. Future plan: 349 stroker, C9 block, forged dish pistons, Scat 9000 crank, 4340 I beam rods, ARP head/main studs, ported explorer intake, 1.72 CC RR, Vortech V2 supercharger, Mr. Freeze Meth Inj, intercooler, TFS 190 11R CNC heads (66CC), BBK shorties with 2.5" duals, 4R70W Transmission, Taurus fan.

84 Tbird window motors

Reply #9 –
Had to do the window motor in my Lincoln when I purchased it.  Just did BOTH in a friends 1989 LSC.  All 3 were the ACI brand carried by Advance Auto.  Perfect fit.

They have units listed for an '84 T-Bird as well.
-- 05 Mustang GT-Whipplecharged !!
--87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's!

84 Tbird window motors

Reply #10 –
Somewhere I remember reading there is a way to remove the motor without drilling the 3 holes.... maybe an extension and swivel or something like that??  I know when I did my DS motor many years ago I drilled the holes but later someone claimed it wasn't necessary.  Sure wish I remember who and how....
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