TV linkage for mid '70s Q-jet

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77cruiser:
Did the trans shop that installed it rebuild it? Usually trans shops, unless they've done a lot of 200-4r's mess them up.

Too Fast:

--- Quote from: 77cruiser on April 06, 2017, 04:05:55 PM ---Probably best to get a gauge, usually 2nd gear starts are caused by line pressure being too high at minimum TV. Do you know if the cable is adjusted right? Is it tight at WOT?

--- End quote ---

The cable is tight at WOT. The transmission starts in 2nd even with the TV cable disconnected, as I found out when driving home from the trans shop last Monday. I got a bracket from TCI for the TV cable, and now it drives as before, downshifting by itself when necessary, but still starts in 2nd, lock-up is hit and miss, won't upshift unless I completely let off the gas. I'm sure it will be a great tranny when it is correct! Trans shop inisists I get the proper baseplate/linkage alignment before they will do any more. Good news is I have not paid them for the transmission or the 2400 stall yet, so I'm not out that ~$2k . If I fix it myself, there will be some negotiatiing on that price for sure, since they said they could do this conversion no problem.

My thoughts are it is an internal valve body issue, or a problem with the TV spring in the valve body. The shop said they rebuilt this transmission. They have been around for 30+ years, that's why I trusted them to do this. They did install 3.55 gears with an Auborn limited slip differential in my BOP differential, and that works perfectly, and I paid them for that. It was a package deal, replace my peg-leg 2.52 gears with that and do install the 2004R to replace the Powerglide.

Grrrr, getting frustrated since this started last November.

77cruiser:
Had a similar experience about 15 yrs. ago, had a shop with 30+ years exp. Had him build one for me & if wouldn't even hold a stock 305, so I studied up & did one myself & haven't looked back. It was good till the cheap conv. I bought from the first guy Fragged kept with & the one I have now is behind a 530 hp 421 sbc so far so good.

http://www.ckperformance.com/View/GM-2004R-TECHNICAL-MANUAL

Good book if you are interested in having a go at it.

Too Fast:
Thanks 77cruiser. I'm gettting a 1" spacer, so I will know I have the exact pull on the TV cable. It isn't quite right, it pulls at a slight angle instead of a direct line. The spacer will allow a correct pull. Then, I may install a pressure gauge to see what pressures I have in each gear. From what I've learned, anything over 85-90 in D or OD will not allow a 1st gear start.

I really think I have four problems: Won't unlock the torque converter sometimes, starts in 2nd always, won't upshift from 1st sometimes. Also won't lock the convertor sometimes. I know it will be fun when it's right!

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