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What happens when you take the cover off a TH350 Governor?

What happens when you take the cover off a TH350 Governor?

Remove the cover (be sure to save the rubber O-ring seal) and the governor will slide straight out with a turning motion (it has a gear on the inside end). A small amount of trans fluid may leak out so put a pan under the opening. Now is a good time to check the governor shaft for wear.

Where is the governor on a th 350?

TH350/400 Governor Mods. The governor is located at the rear of the main trans case on the driver side on a TH 350 and passenger side on a TH400. There is a round sheetmetal cover over it that’s held by a spring clip (or in some cases just an interference fit) on a TH350 and by 4 bolts or a spring clip on TH400’s.

How do you remove a transmission from a Turbo 350?

Place a floor jack or transmission jack under the transmission and remove the bolts that attach the cross member to the frame and remove the cross member. The bolts may be hard to get out if they have never been removed, so you may need to heat them with a torch or use a good penetrating oil on them.

Where are the torque converters on a Turbo 350?

There are four on most models, but depending on the vehicle there may be five. These bolts are the ones that surround the bell housing and secure the transmission to the back of the engine block. Slide the transmission back slowly, making sure that the torque converter stays on the transmission.

When to change the governor on a TH350?

If the rear axle ratio has been changed or the trans originally came from a different vehicle, the governor calibration is probably off and should be changed. But first ensure the vacuum modulator is OK and there are no vacuum leaks. The governor is a pressure valve with centrifugal flyweights and springs.

How do you remove torque converter from GM Turbo 350?

Use a big screwdriver or pry bar to turn the engine to gain access to the converter bolts; some applications have limited access to the front crankshaft bolt from the underside of the vehicle. Remove the torque converter bolts. Many GM applications use bolts that thread into the converter.

How do you remove weights from TH350 Trans?

To remove the weights, grind off the swedged ends of the two hinge pins and remove them. To reinstall the weights, use two 6d finish nails for hinge pins and bend the ends over to retain them after installing. Be sure both springs are back in place. Clean everything in parts cleaner before reinstalling the governor in the trans.

What to use to support GM Turbo 350 transmission?

The four-post lift in the shop has a movable center support, so you can come in under the engine’s oil pan and use a screw jack and a block to support the engine. Another option is to make support from a piece of 4 x 4 that can be raised or lowered by a floor jack.

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Ruth Doyle