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OD trans TV cable adjust ??


scbill

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From all I can find, the cable is to be set at a neutral position,no tension,no slack, as per video link.

My question...if it is too slack,od band will slip, and burn out. If it is set a little tight, will it cause the od band to be tighter, and will it cause problems?

Reason for question, When it shifted to od, it slipped like low fluid, fluid level ok, found cable off of clip reconnected, all as was before, readjusted a little tighter, all shift points seem to be more as it is supposed to be.

 

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The cable adjustment is really supposed to be done with a pressure gauge. Best way I have found is to drive the truck. OD should be able to engage around 45 mph. To early and it will slip and burn up the band, too late and it will "hunt" in and out of OD at highway speeds. Adjust the casing back is later shift, forward is earlier. This is in relation to the end of the cable. When it is right, 3rd will be a relatively firm shift as it is a straight mechanical connection from engine to output shaft. OD will be slightly less firm, but still quite positive as it is on the order of 75-80% mechanical (torque converter has only limited use). The final will be does it "hunt" at highway speeds, if so back the cable off 1 notch closer and try again. I have adjusted many of these this way and gotten loads of miles on them with no problem.

Back in the day, we used to do Hydra-Matics the same way, fine tune for best shift quality.

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Shift points feel positive with OD shift @ 45/50 mph, I'm thinking a tighter cable equals tighter band grip/pressure. If that be the case, all should be OK.

FWIW..this is a shot of the repair on the tv cable end. I used a "stacon" lug, spread where the wire goes, clamped in place, shaped to fit stud....it works.

cable_fix.thumb.jpg.36f38ac4782760dbe6c2fdc27823677f.jpg

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Shift points feel positive with OD shift @ 45/50 mph, I'm thinking a tighter cable equals tighter band grip/pressure. If that be the case, all should be OK.

FWIW..this is a shot of the repair on the tv cable end. I used a "stacon" lug, spread where the wire goes, clamped in place, shaped to fit stud....it works.

Nicely done, and you have rare one, a 6 cyl with AOD. You are correct that it does equal higher pressures as the Throttle Valve (TV) pressure also effects line pressure. You should be good to go with it.

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