TH400 rebuild tech
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| − | {{!}}The following was added by | + | {{!}}The following was added by user 184.71.102.174: |
<blockquote>Note: I'm a builder with 35 yrs experience and we have a full machine shop with bore gauges. We do not replace any bushings unless absolutely necessary in any transmission. All the aftermarket bushings I have ever used except ones that are designed to be machined after installation, ALWAYS result in GREATER clearance that the OEM bushing your replacing. If you shrink them in dry ice and tap them in you will have better results but they still maybe larger than OEM. The only bushing we change consistently is the front pump. We prefer to find another part with a good bushing. | <blockquote>Note: I'm a builder with 35 yrs experience and we have a full machine shop with bore gauges. We do not replace any bushings unless absolutely necessary in any transmission. All the aftermarket bushings I have ever used except ones that are designed to be machined after installation, ALWAYS result in GREATER clearance that the OEM bushing your replacing. If you shrink them in dry ice and tap them in you will have better results but they still maybe larger than OEM. The only bushing we change consistently is the front pump. We prefer to find another part with a good bushing. | ||
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Once the intermediate apply piston and the return springs, guide, retainer plate and snap ring is installed, you must install the center support to direct drum sealing rings. | Once the intermediate apply piston and the return springs, guide, retainer plate and snap ring is installed, you must install the center support to direct drum sealing rings. | ||
| − | There are | + | *There are three choices here, shown below: |
| − | + | #Solid teflon is on the left | |
| − | Solid teflon is on the left | + | #Scarf cut teflon, center |
| + | #Cast iron, right | ||
[[file:Seal_rings_t-400.jpg]] | [[file:Seal_rings_t-400.jpg]] | ||
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