700r4 shifting oddly, and where can a guy find vaccum diagrams? - Team Camaro Tech
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post #1 of 6 (permalink) Old Apr 6th, 01, 01:45 PM Thread Starter
 
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Hello all, Any body know why a 700r4 might hold a gear even though the pedal is released one minute and than shift normal the next? Also, I have a 305 w/a Roachtoaster Quadrajet on it, and I have been trying to find a page with easy perfomance mods ans alternative vaccum diagrams, any help??
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post #2 of 6 (permalink) Old Apr 6th, 01, 02:20 PM
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I would bet that your T.V. cable is out of adjustment on the 700r4. I had the same exact problem on my 68 camaro. Took forever to finally shift. I adjusted the T.V. cable and it fixed everything.
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post #3 of 6 (permalink) Old Apr 6th, 01, 02:24 PM Thread Starter
 
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Thanx very much, does this explain why it does not do that consistantly?? Also acts like it has a 2400rpm stall converter when it is doing that. (freewheels to 2400 and then shifts hard)
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post #4 of 6 (permalink) Old Apr 6th, 01, 04:14 PM
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Can't really help with your problem but as far as I know there is no vacuum associated with a 700r4. At least not with mine. Then again I learn something new here every day.

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Robert

'69 getting better every day... (every pay day)
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post #5 of 6 (permalink) Old Apr 6th, 01, 05:35 PM
 
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I agree, this sounds like a TV cable adjustment is needed. You don't want to drive like for this too long either. An improperly adjusted TV cable can waste a 700R4 rather quickly.
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post #6 of 6 (permalink) Old Apr 6th, 01, 08:31 PM
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also check the trany lock up vacuum switch, it should be hooked up to ported vacuum and a thermo switch. the line go's from the carb to the thermo switch to the vacuum switch. this is to control the lock up in the other gear's except 4th. also adjust the T.V. cable.

to do this push the releace tab and push the cable cable shaft all the way into the mounting part where the tab is. then open the throtle manualy to WOT. the cable should rachet oout. that is the base adjust ment, if you want a firmer shift move it out about 1/16th of an inch at a time.

hope this help's ya out. oh and if you have an after market carb, holly make's a braket that work's for holly/demon carb's it cost's about 20 buck's. TCI has one for edelrock/carter and q-jet's it also cost's about 20 buck's and it will keep the right geomitry. you might need one if you have an after market manifold too, i did with my edelbrock cause it is taller then stock manifold and messes up the geomitry.

[This message has been edited by ilbl8 (edited 04-06-2001).]
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