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Old 08-01-2011, 02:43 PM
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700r4 TV Cable Tension ?

Recently bought the TV Made Easy system from Bow Tie. I have everything switched out and hooked up. I was curious about one thing though. Do any of you guys have this setup? My question is in regard to the tension of the TV cable on the carburetors throttle system. Mine moves freely, but there is a significant amount tension. So much tension that a return springs is not required to get it pulled back to the idle position. Is this normal?

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Old 08-01-2011, 07:27 PM
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Shouldn't be that much tension on the TV cable at fully closed throttle; there should be some deflection. Too much tension keeps the line pressure high and causes slippage and overheating.
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Old 08-03-2011, 10:40 AM
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Update: I installed my new throttle cable and opening the throttle at the peddle is very smooth and requires no effort so I'm going to leave things for now since the TV cable is aligned to spec at both ends.


One thing I don't understand in your reply is how high line pressure would cause slipping. Can someone explain? I thought increased pressure was a good thing.
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Old 08-03-2011, 12:40 PM
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Quote:
Originally Posted by jmichaelre
One thing I don't understand in your reply is how high line pressure would cause slipping. Can someone explain? I thought increased pressure was a good thing.
My mistake.

The suggested pressure is 65 to 80 lbs at idle for the transmission; too high a pressure at idle will start you in second gear; too low a pressure will cause it to slip. The pressure should spike when you leave a stop light and if it doesn't, the transmission is slipping.

Here's a good 700R4 link:
http://www.tvmadeez.com/article/index.php
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Old 08-03-2011, 01:06 PM
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I understand what you're saying now. I will be doing a pressure test when I get a few more things done and double check the pressures to make sure all is fine.
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Old 08-03-2011, 10:22 PM
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Hey jmichaelre,

I am considering going with the BTO TV system as well. I am very curious about your experience and would really like to know how difficult it was to replace the spring, connecting the pressure gauge, cables, etc, etc.

In theory your system will now have the capability of adjusting (to some extent) the the shift characteristics. Would like to know what you think. Did it work, and is it worth getting the TV system?

I'm having some shift point issues with my traditional set up and if this solution works, the couple of hundred bucks for the BTO system is certainly a lot cheaper than my new $2500 transmission!!

Please keep us posted.

Vic
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