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Old 09-20-2014, 10:59 PM   #119
clinebarger
Senior Member
 
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
Re: 700R4 build thread.

Accumulator Bushing & Accumulator Valve.

The Accumulator Valve controls the pressure in the Accumulator Oil Circuit, The higher the Accumulator pressure, The Firmer the shift.

The Pressure is manipulated buy using different spring weights, The heavier the spring, The higher the pressure. This affects the 1-2 Shift feel.

The TransGo 700-jr has 3 different Accumulator springs, Orange being the Firmest, Brown being a Medium weight, & Black being the Lightest.

Remove Accm. Bushing & Valve from the Valve Body, Check for Bushing wear, & the aluminum end cap fits snugly.

Check the LETTER code on the Accumulator Bushing BEFORE selecting a Spring weight!!

This valve train has 7 different OEM size variations: B, A, N, M, L, K, and F. They range from the largest valve diameter giving the firmest shift (B) to the smallest valve diameter giving the softest shift (F), respectively.
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