TH400 rebuild tech
(photos taken by me at home) |
|||
| Line 298: | Line 298: | ||
In the direct drum, leave out the center lip seal. This is the "dual feed" modification you read about. | In the direct drum, leave out the center lip seal. This is the "dual feed" modification you read about. | ||
| − | [[ | + | [[File:Th400centerseal.jpg|thumb|300px|left|T-400 direct drum, left center seal out]] <br style="clear:both"/> |
Notice the circle around the check ball in the aluminum piston. Each drum and piston assembly must have one of these check balls. The check ball may be in the piston, it may be in the drum as circled in the drum photo. | Notice the circle around the check ball in the aluminum piston. Each drum and piston assembly must have one of these check balls. The check ball may be in the piston, it may be in the drum as circled in the drum photo. | ||
| − | [[ | + | [[File:T-400_direct_piston2.jpg|thumb|300px|left|T-400 piston check ball location]] <br style="clear:both"/> |
| − | + | ||
You must install a full set of returns springs in the direct drum. Ignore the experts or online information to leave springs out of the direct drum. If you have a set of heavy duty return springs from a kit or supplier, install half HD springs with half OEM springs. This helps to avoid residual oil behind the piston from forcing the piston out at high RPM when in 1st or 2nd gears. | You must install a full set of returns springs in the direct drum. Ignore the experts or online information to leave springs out of the direct drum. If you have a set of heavy duty return springs from a kit or supplier, install half HD springs with half OEM springs. This helps to avoid residual oil behind the piston from forcing the piston out at high RPM when in 1st or 2nd gears. | ||
| − | |||
| + | [[File:T-400_direct_piston.jpg|thumb|300px|left|T-400 piston with springs]] <br style="clear:both"/> | ||
===Drum installation=== | ===Drum installation=== | ||
Your Privacy Choices