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Old 01-06-2006, 11:05 PM
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Dont Wan't Engine braking in TH350

how is this done properly i have heard of people doing this before. Just wanting to try this out. I know that you have to disable the band from alplying but i do not know how this is done, do you just leave the band out, put a spacer under the servo so that it dosent ingage the band, checkball removal, what is the most effective and safe way to do this? i know that this can put extra strain on the intermediate one way race. i just want someone to explain it to me


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Cam

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Old 01-06-2006, 11:23 PM
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Quote:
Originally Posted by Blazin__
how is this done properly i have heard of people doing this before. Just wanting to try this out. I know that you have to disable the band from alplying but i do not know how this is done, do you just leave the band out, put a spacer under the servo so that it dosent ingage the band, checkball removal, what is the most effective and safe way to do this? i know that this can put extra strain on the intermediate one way race. i just want someone to explain it to me


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Cam

You must misunderstand the operation of the tranny in question.

the strain is on the intermediate sprag race during acceleration , not during decel.

The band holds the drum for engine braking only.

If you remove the band and while in manual second gear the tranny will seem to 'neutral out' when you lift on the gas pedal ( no acceleration)... when throttle is reapplied hard that is when the sparg race is really stressed .


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Old 01-06-2006, 11:31 PM
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ya thats what im lookin for..... wanna neutral when i go into man2. i just wanna know the proper way of doing this. i have a few years of tranz building experience behind me i have just never done this before or had anyone tell me how this is done


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Old 01-07-2006, 05:49 PM
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Isn't there a sprag or one way clutch inside the torque convertor that keeps the engine from freewheeling when you decel.? Or am I on the wrong page? If so couldn't you order a convertor without that?
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Old 01-07-2006, 08:34 PM
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Can anyone help me out???
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Old 01-08-2006, 04:33 AM
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Kilgore automatics used to market a 'grade grabber' convertor with a sprag to provide engine braking but I think this is opposite to what the man is after.
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Old 01-08-2006, 09:35 AM
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Quote:
Originally Posted by Blazin__
Can anyone help me out???
what is it you need to know?

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Old 01-08-2006, 01:14 PM
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i want to know if you simply just leave the band out, or if you stop the servo from moving somehow. or block off the servo apply ??? what is the proper way to do this
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Old 01-08-2006, 05:45 PM
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Quote:
Originally Posted by Blazin__
i want to know if you simply just leave the band out, or if you stop the servo from moving somehow. or block off the servo apply ??? what is the proper way to do this
Remove the band and servo parts.

Remove the spring from under the accumilator piston in the valve body. Use washers or a spacer to block the piston down into the v-body. Reinstall the E clip retainer

Plug off all the holes in the case where the servo was. 1/8 pipe plugs, a cup plug the size of the large hole , they must be plugged off or you have a massive leak
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Old 01-08-2006, 05:54 PM
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i am also looking for a hydraulic diagram for this transmission is their someplace where i can get this online
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