Transmissions and Drivetrain Need help with your trans? Problems with your axle?

th350 governor

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Old Feb 11, 2005 | 09:37 PM
  #1  
zdrag28's Avatar
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From: michigan
Car: 85 z28
Engine: 327
Transmission: th350
Axle/Gears: ford 9in 4:56 to 1
th350 governor

What happens if you take it out or disable it? I seen in a thread that it wont upshift is that just in drive ,?will it shift manually
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Old Feb 11, 2005 | 09:44 PM
  #2  
Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
It won't shift at all.
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Old Feb 12, 2005 | 07:33 PM
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the governor generates a variable rate hydraulic signal to inform the valve body of road speed and introduce upshifts or ratio changes.without it modulator pressure directed to the shift valves and the influence of the spring tension of the shift valve springs on the shift valves which keep the valves held in the downshifted position against governer pressure will not allow upshifts.if the governor circuit is held wide open the signal will be so high that itll take off in third gear unless it is manually shifted.this is basically how a full manual valve body is made more or less.
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Old Feb 12, 2005 | 07:55 PM
  #4  
zdrag28's Avatar
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From: michigan
Car: 85 z28
Engine: 327
Transmission: th350
Axle/Gears: ford 9in 4:56 to 1
QUOTE;
if the governor circuit is held wide open the signal will be so high that itll take off in third gear unless it is manually shifted.this is basically how a full manual valve body is made more or less.

how would I make it stay wide open?
And would this hurt the trans ?
this is not street driven
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Old Feb 12, 2005 | 08:03 PM
  #5  
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From: new york city
remove the governor ,plug the two holes that feed it oil and then crossdrill line pressure into the governer upshift circuit.it wont hurt the trans,and there is a few other things you can do to firm it up.
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Old Feb 12, 2005 | 08:14 PM
  #6  
zdrag28's Avatar
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From: michigan
Car: 85 z28
Engine: 327
Transmission: th350
Axle/Gears: ford 9in 4:56 to 1
QUOTE;
and then crossdrill line pressure into the governer upshift circuit.

Can you explain? my vocab.About tranny's suck
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Old Feb 12, 2005 | 08:28 PM
  #7  
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From: new york city
im describing the modifications done to the valve body .after identifying the correct passageways in the casting you drill thru the partition to connect them.you plug the oil sent to the governor to be governed and plug the governer upshift oil passage at the governor port exit so the line oil you crossdrilled intop the circuit doesnt bleed off.if you are not familiar with a transmission get a manual with the hydraulic diagrams or dont attempt it at all.
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Old Feb 12, 2005 | 08:52 PM
  #8  
zdrag28's Avatar
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From: michigan
Car: 85 z28
Engine: 327
Transmission: th350
Axle/Gears: ford 9in 4:56 to 1
I got a manual. Thaks for the info.
Is there anything else I need to do or know to do this?
THANKS AGAIN
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Old Feb 13, 2005 | 09:39 AM
  #9  
chris718's Avatar
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From: new york city
yes if the car takes off in 2nd gear with the selector in manual lo you will need a heavier 1/2 shift valve spring.
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