TH350 rebuild tech
(clean up) |
(→Governor modifications) |
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=Governor modifications= | =Governor modifications= | ||
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| + | ==Governor== | ||
| + | Photo of an OEM T-350 governor and cover. Note the direction of the plastic drive gear teeth. If the plastic gear breaks or wears out, there will be no upshifts since the governor is not rotating. | ||
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| + | [[file:T-350_governor.jpg]] | ||
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[[File:B&M Governor recalibration kit.jpg|thumb|300px|left|B&M Governor recalibration kit.]] <br style="clear:both"/> | [[File:B&M Governor recalibration kit.jpg|thumb|300px|left|B&M Governor recalibration kit.]] <br style="clear:both"/> | ||
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The following work is most easily done on a lift with all 4 wheels off the ground and the emergency brake firmly locked!</Blockquote> | The following work is most easily done on a lift with all 4 wheels off the ground and the emergency brake firmly locked!</Blockquote> | ||
| − | <Blockquote> We want the engine fully warmed up for this test, and take the reading at the ''tranny'' end of the vacuum line. Unplug the modulator hose from the vacuum modulator assembly. Attach a vacuum gauge to the hose. Start the engine, | + | <Blockquote> We want the engine fully warmed up for this test, and take the reading at the ''tranny'' end of the vacuum line. Unplug the modulator hose from the vacuum modulator assembly. Attach a vacuum gauge to the hose. Start the engine, turn on the air conditioner, put the shifter in DRIVE, and write down the vacuum reading on the gauge.</Blockquote> |
<Blockquote> Next, get yourself a pocket screwdriver and a new modulator "elbow" (keep the elbow in your pocket). INSTALL PRESSURE GAUGE ON MAIN LINE PORT. Plug the engine side of the vacuum line (so you won't have a vacuum leak). Get a hand operated vacuum pump and attach it to the modulator. Get your little screwdriver and punch it thru the rubber hose (yes that's right!) about 1/2" behind the modulator stem. This way you can adjust your modulator inside the hose with it attached and the engine running!</Blockquote> | <Blockquote> Next, get yourself a pocket screwdriver and a new modulator "elbow" (keep the elbow in your pocket). INSTALL PRESSURE GAUGE ON MAIN LINE PORT. Plug the engine side of the vacuum line (so you won't have a vacuum leak). Get a hand operated vacuum pump and attach it to the modulator. Get your little screwdriver and punch it thru the rubber hose (yes that's right!) about 1/2" behind the modulator stem. This way you can adjust your modulator inside the hose with it attached and the engine running!</Blockquote> | ||
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|[[File:Kickdown4.jpg|thumb|180px|center|Push clip down to lock.]] | |[[File:Kickdown4.jpg|thumb|180px|center|Push clip down to lock.]] | ||
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| − | <Blockquote> Now that the detent and modulator are set correctly, we are ready to think about shift scheduling. | + | <Blockquote> Now that the detent and modulator are set correctly, we are ready to think about shift scheduling. Road test the car. You will need to know minimum and maximum throttle shift speeds for the 1-2 and 2-3 shifts, the RPM for the max throttle shifts, and the highest speed you can get a 3-1 and a 3-2 kick down. Also, what is the [http://www.crankshaftcoalition.com/wiki/Gear_ratio_check axle ratio].</Blockquote> |
<Blockquote> From this point we work with governor weights, springs, and shift valve springs.</Blockquote> | <Blockquote> From this point we work with governor weights, springs, and shift valve springs.</Blockquote> | ||
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[[Category:Transmission]] | [[Category:Transmission]] | ||
[[Category:Good articles]] | [[Category:Good articles]] | ||
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