Guage Testing 727

[moparspares]

Can anyone tell me the correct procedure for testing a 727 with guages. How to hook them up and then actually testing for correct pressures.

The box is a full manual VB reverse pattern with a 3000 stall

 

[fishy68]

You can test for pressures but unless you know what their supposed to be you won't gain anything. I have the factory serv manual that shows where to check what but the pressures on a full manual valve body will be much higher and different (no modulating with the throttle valve)

What kind of problem are you having?

 

[moparspares]

I found some pressures on a chart from TCI so thats not a problem. I am not having problems - Touch Wood. I have assembled the trans myself and I have motor and box on a test stand ready to fire. As this is my first ever box rebuild and have some guages I thought it worthwhile to test before fitting in the car. Never done it before so was looking for guidance on how its done.

 

[fishy68]

Gotcha. Here's a PDF file showing the test ports

 

[cannucky]

sorry to hijack but what are the factory pressure's ? are they different for my 904 ?

 

[moparspares]

sorry to hijack but what are the factory pressure's ? are they different for my 904 ?

http://www.tciauto.com/tc/trans-line-pressure/

and thanks for the Info Fishy

 

[cannucky]

http://www.tciauto.com/tc/trans-line-pressure/

and thanks for the Info Fishy

well that tells me there the same but that chart is for transmissions with their valve bodies , what are the stock numbers ? And what effect does higher or lower numbers have on the trans ?

 

[fishy68]

http://www.tciauto.com/tc/trans-line-pressure/

and thanks for the Info Fishy

Your welcome

well that tells me there the same but that chart is for transmissions with their valve bodies , what are the stock numbers ? And what effect does higher or lower numbers have on the trans ?

More pressure increases clamping ability which makes it shift firmer and have less chance of slippage that'd burn up the clutches and bands. Installing a shift kit raises the pressures as does installing a manual valve body

 

[cannucky]

Thanks guys