TH400 rebuild tech

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 Case is prepared for pump installation.
-You also block the 2-3 accumulator feed hole in the valve body. This requires a 5/16" set screw and proper tap. You will remove the 2-3 accumulator piston, discard the spring.
-Tap the hole that feed the backside, or spring side, of the accumulator piston. Install the set screw. Re-install the accumulator piston.
-What this does is eliminates accumulator function on the 2-3 shift. This results in a very positive 2-3 shift. You could leave 2-3 accumulator function in place and go slightly bigger on the feed hole.
 ===Check ball locations===

Revision as of 23:15, 10 December 2011