200 4R TV cable adjustment pointers? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rsavage · 12-22-2009, 08:05 PM

I finished replacing the 4 speed with a 200 4R and fired it up today. I used the Bowtie Overdrive wiring kit. I made my own bracket for the TV cable as they don't make one for a two barrel. Took it down the road today and obviously I haven't yet hit the proper adjustment as shifts were stacked and too close. Got it a little better by playing around but still not right. Converter seemed to be locking up too soon. Shifts fine shifting manually. I bought the tranny used and was told it had about 10,000 miles since a performance rebuild. Looked okay, as much as can be seen, when I changed filter and wiring. Has a transgo gasket above the valve body and a yoyo reverse fixer, so it did have some work done to it. In ant event, anyone have some real world advice on adjustment? I've read the info available on the various transmission sites i.e. bowtie, Art carr, etc.
http://i249.photobucket.com/albums/g...P1020336-1.jpg
http://i249.photobucket.com/albums/g...P1020345-1.jpg

caja_larga · 12-22-2009, 08:16 PM

can you make the pic bigger?

rsavage · 12-22-2009, 08:37 PM

They are bigger now.

**LEEVON** · 12-22-2009, 09:44 PM

If you do these two things you will be successful:

You need to make sure the length of cable pull on the carb linkage matches that of the TV plunger. In other words, make sure that if you can pull the cable X", then when it is connected to the carb and you open the throttle the pull length is the same as X within about 1/8". I found my carb pulled way too far, bottoming out the TV plunger too early even with the "corrected" tv bracket. The remedy was to move the linkage point down so the stroke was shorter.

The only way to ensure these are properly set up is with a pressure gauge which can be had for about $30 online. Hook into the pressure port on the drivers side. You want to make sure your pressures are within range in all gears. Most importantly you want the pressure to rise just off idle. Basically adjust the cable until you detect a slight rise in park (1-2psi). When the throttle opens, the pressure will rise instantly. If this does not happen, the clutches will quickly burn up due to lack of fluid pressure.

This thread has the pressures for a 700R4, not sure if they're the same as the 200.

http://67-72chevytrucks.com/vboard/s...700r4+pressure

rsavage · 12-23-2009, 09:01 AM

Leevon,
Thanks for the info. I will pick up a pressure gauge and adjust cable according to pressure.

12-22-2009, 08:05 PM	#1
rsavage Registered User Join Date: Aug 2009 Location: Alden NY Posts: 2,705	200 4R TV cable adjustment pointers? I finished replacing the 4 speed with a 200 4R and fired it up today. I used the Bowtie Overdrive wiring kit. I made my own bracket for the TV cable as they don't make one for a two barrel. Took it down the road today and obviously I haven't yet hit the proper adjustment as shifts were stacked and too close. Got it a little better by playing around but still not right. Converter seemed to be locking up too soon. Shifts fine shifting manually. I bought the tranny used and was told it had about 10,000 miles since a performance rebuild. Looked okay, as much as can be seen, when I changed filter and wiring. Has a transgo gasket above the valve body and a yoyo reverse fixer, so it did have some work done to it. In ant event, anyone have some real world advice on adjustment? I've read the info available on the various transmission sites i.e. bowtie, Art carr, etc. http://i249.photobucket.com/albums/g...P1020336-1.jpg http://i249.photobucket.com/albums/g...P1020345-1.jpg __________________ 1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7 Last edited by rsavage; 12-22-2009 at 08:36 PM.

12-22-2009, 08:16 PM	#2
caja_larga Registered User Join Date: Oct 2007 Location: Tucson, Az Posts: 172	Re: 200 4R TV cable adjustment pointers? can you make the pic bigger?

12-22-2009, 08:37 PM	#3
rsavage Registered User Join Date: Aug 2009 Location: Alden NY Posts: 2,705	Re: 200 4R TV cable adjustment pointers? They are bigger now. __________________ 1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7

12-22-2009, 09:44 PM	#4
LEEVON Moderator Join Date: Jul 2006 Location: Ozark, MO Posts: 4,888	Re: 200 4R TV cable adjustment pointers? If you do these two things you will be successful: You need to make sure the length of cable pull on the carb linkage matches that of the TV plunger. In other words, make sure that if you can pull the cable X", then when it is connected to the carb and you open the throttle the pull length is the same as X within about 1/8". I found my carb pulled way too far, bottoming out the TV plunger too early even with the "corrected" tv bracket. The remedy was to move the linkage point down so the stroke was shorter. The only way to ensure these are properly set up is with a pressure gauge which can be had for about $30 online. Hook into the pressure port on the drivers side. You want to make sure your pressures are within range in all gears. Most importantly you want the pressure to rise just off idle. Basically adjust the cable until you detect a slight rise in park (1-2psi). When the throttle opens, the pressure will rise instantly. If this does not happen, the clutches will quickly burn up due to lack of fluid pressure. This thread has the pressures for a 700R4, not sure if they're the same as the 200. http://67-72chevytrucks.com/vboard/s...700r4+pressure __________________ '20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids Last edited by LEEVON; 12-22-2009 at 09:48 PM.

12-23-2009, 09:01 AM	#5
rsavage Registered User Join Date: Aug 2009 Location: Alden NY Posts: 2,705	Re: 200 4R TV cable adjustment pointers? Leevon, Thanks for the info. I will pick up a pressure gauge and adjust cable according to pressure. __________________ 1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7

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