Author Topic: A-727 Slapstik, 2-3 slipping when hot  (Read 10390 times)

Offline jforest1

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Re: A-727 Slapstik, 2-3 slipping when hot
« Reply #15 on: September 20, 2012 - 07:34:38 PM »
And as of today:

Further notes:

5.  Welded weights onto the torque converter, torque converter is not correct for forged crank, and so they welded correctly sized weights on it.
6.  Previous owner took spring out of reverse servo and put spacer in it to accommodate that.
7.  Kevlar front band installed in it.


Diagnosis of problem:
Inner lip seal for front clutch was too small for groove - cold fluid was thick and would not hold, but hot fluid would not hold.  forward, rear clutches, bands were burned.



option 1:
$225 - torque converter
$75 - high performance band
$1200 - grand total for rebuild

option 2:
* better torque converter; better stall speed (2100), welded fins (turbines) in torque converter
* high performance clutches (steel to co-ring plates or blue plates)
* change transmission fluid to blue transmission fluid (trick shift)
$375 for kit above
$100 for fluid
$1700 - grand total for rebuild

JF
« Last Edit: September 21, 2012 - 03:59:58 PM by jforest1 »
'73 Cuda 340 Slapstick, A727 Torqueflite Transmission, Edelbrock Thunder Series AVS 1806, Vintage Air Gen IV A/C system




Offline tactransman

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Re: A-727 Slapstik, 2-3 slipping when hot
« Reply #16 on: September 20, 2012 - 10:23:54 PM »
Trick Shift fluid is a waste of money. So are "blue clutches". If you HAVE a forged crank, then you should NOT have weights on the converter.
Terry-tactransman 
Torqueflite/Automatic Transmission Specialist
Union, Mo.
Give a man a fish and he eats for a day,teach him to fish and he eats for a lifetime.

Offline AARuFAST

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Re: A-727 Slapstik, 2-3 slipping when hot
« Reply #17 on: September 21, 2012 - 12:18:37 AM »
My  :2cents:

Question what size is engine big block or small block.
 
Should have a trans cooler with A/C.
Should have a Clutch Fan with A/C with 7 blade fan.
You can get a clutch fan at local auto stores. DO NOT buy an aluminum cast water pump..for big block engine.  Make sure u get the correct shaft length,
Should have a 8 impeller water pump with A/C.

Wow     :clueless:   who is doing your trans. and torque converter. 
« Last Edit: September 21, 2012 - 12:21:24 AM by AARuFAST »
1970 AAR Cuda
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Offline jforest1

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Re: A-727 Slapstik, 2-3 slipping when hot
« Reply #18 on: September 21, 2012 - 03:52:55 PM »
Trick Shift fluid is a waste of money. So are "blue clutches". If you HAVE a forged crank, then you should NOT have weights on the converter.

Should clarify.  The weights were on there already, Oakwood Transmission was noting that they were welded onto a converter that didn't normally have weights but needed them because it was incorrect for the forged crank.  The previous owner welded the correct weight size onto it, but hoaky nonetheless.

JF
« Last Edit: September 21, 2012 - 04:05:31 PM by jforest1 »
'73 Cuda 340 Slapstick, A727 Torqueflite Transmission, Edelbrock Thunder Series AVS 1806, Vintage Air Gen IV A/C system

Offline jforest1

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Re: A-727 Slapstik, 2-3 slipping when hot
« Reply #19 on: September 21, 2012 - 03:59:23 PM »
My  :2cents:

Question what size is engine big block or small block.

Small block.


Should have a trans cooler with A/C.

I do not have this.

Should have a Clutch Fan with A/C with 7 blade fan.  You can get a clutch fan at local auto stores.

I have a 6-blade fan.

DO NOT buy an aluminum cast water pump..for big block engine.  Make sure u get the correct shaft length,
Should have a 8 impeller water pump with A/C.

Acknowledged.  No clue what I currently have.

Wow     :clueless:   who is doing your trans. and torque converter.

  Oakwood Transmission in Flowery Branch.  Note my comment above.  Most of the notes are from what the current condition of the car is in, not what Oakwood Transmission is doing.  The options 1 & 2 are what they are suggesting.

JF
'73 Cuda 340 Slapstick, A727 Torqueflite Transmission, Edelbrock Thunder Series AVS 1806, Vintage Air Gen IV A/C system

Offline jforest1

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Re: A-727 Slapstik, 2-3 slipping when hot
« Reply #20 on: October 02, 2012 - 03:48:19 PM »
well.  got it back.  as i drive, feel a really high-frequency vibration that comes and goes as i drive (kinda like a rubbing).  more to come once it stops raining...

JF
'73 Cuda 340 Slapstick, A727 Torqueflite Transmission, Edelbrock Thunder Series AVS 1806, Vintage Air Gen IV A/C system

Offline jforest1

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Re: A-727 Slapstik, 2-3 slipping when hot
« Reply #21 on: October 03, 2012 - 02:12:05 PM »
Interestingly enough, not occurring any more!

JF
'73 Cuda 340 Slapstick, A727 Torqueflite Transmission, Edelbrock Thunder Series AVS 1806, Vintage Air Gen IV A/C system

Offline MEK-Dangerfield

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Re: A-727 Slapstik, 2-3 slipping when hot
« Reply #22 on: October 03, 2012 - 03:09:00 PM »
I love cars that fix themselves.     :ylsuper:

Mike

1970 Challenger - SOLD
2016 SXT+.  1 of 524 SXT+'s in Plumb-crazy for 2016.