Re: Transmission question
Posted by HH56 On 2017/1/12 10:33:29
There is a sleeve inside the OD that needs to slide when trans goes into reverse or OD is locked out. A rod in the trans is actuated by the reverse fork to move the sleeve. That sleeve locks together the overrunning clutch and planetary so the car can reverse. It could be gummed up so it can't slide or is partially blocked and not free to slide.
I would suggest you go under and disconnect the cable from the lever on the passenger side of trans. Until you get the cable moving free, manually move the lever all the way so the end points forward and wire it there. That will lock the OD out and should allow the ring to slide and lock the parts together.
Another very common possibility is someone could have removed the solenoid at some point and when reinserting it did not get the end of plunger into the slot in the pawl. If not in the slot, the length of the plunger will move the pawl inward and can cause the pawl to force the unit into OD. The result would be the same as the electrical reverse lockup problem described in the service counselor article I referred to a few days ago where in selecting reverse the planetary and over running clutch try to turn in opposite directions and become locked together.
The procedure for reinstalling the solenoid to properly engage the ball into the pawl slot is to electrically energize the solenoid so the plunger is extended. With the plunger extended the solenoid can be tilted to move the ball end past the slot at the front edge and then the solenoid body can be manipulated to engage the slot as you move the solenoid into place. If the wiring and components are intact you can force the solenoid to energize by having knob in, key on and grounding the AD (more centered terminal) at the governor. If the wiring is disconnected use fairly heavy wire to engage manually. Bat ground to the solenoid case and with the hot lead, connect the voltage to both terminals 3 AND 4 at the same time.
If you do remove the solenoid to check engagement also verify it and the spacer was or is reinstalled correctly. At a glance the assy appears symmetrical but it is not. If forced things will bolt on incorrectly and then most likely bind in operation. The spacer has small holes on one side which goes to the rear and the solenoid has 3 of the terminals generally oriented toward the rear.
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I would suggest you go under and disconnect the cable from the lever on the passenger side of trans. Until you get the cable moving free, manually move the lever all the way so the end points forward and wire it there. That will lock the OD out and should allow the ring to slide and lock the parts together.
Another very common possibility is someone could have removed the solenoid at some point and when reinserting it did not get the end of plunger into the slot in the pawl. If not in the slot, the length of the plunger will move the pawl inward and can cause the pawl to force the unit into OD. The result would be the same as the electrical reverse lockup problem described in the service counselor article I referred to a few days ago where in selecting reverse the planetary and over running clutch try to turn in opposite directions and become locked together.
The procedure for reinstalling the solenoid to properly engage the ball into the pawl slot is to electrically energize the solenoid so the plunger is extended. With the plunger extended the solenoid can be tilted to move the ball end past the slot at the front edge and then the solenoid body can be manipulated to engage the slot as you move the solenoid into place. If the wiring and components are intact you can force the solenoid to energize by having knob in, key on and grounding the AD (more centered terminal) at the governor. If the wiring is disconnected use fairly heavy wire to engage manually. Bat ground to the solenoid case and with the hot lead, connect the voltage to both terminals 3 AND 4 at the same time.
If you do remove the solenoid to check engagement also verify it and the spacer was or is reinstalled correctly. At a glance the assy appears symmetrical but it is not. If forced things will bolt on incorrectly and then most likely bind in operation. The spacer has small holes on one side which goes to the rear and the solenoid has 3 of the terminals generally oriented toward the rear.
Attach file:
(34.80 KB)
(40.42 KB)
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