Topic: can rear wheels freely turn with trans in gear?


MICHV8    -- 08-31-2024 @ 1:26 PM
  I have the rear end on jack stands off the floor with trans in 1st and was surprised that the wheels turn easily...what am I missing? Isn't the pressure plate and disc against the flywheel? Shouldn't the engine provide resistance? Does the banjo somehow allow this?
Thanks!


MICHV8    -- 08-31-2024 @ 2:08 PM
  The reason I'm asking is that my car suddenly went dead. Battery is good. Ignition switch is good. But no starter engagement. I even took a spare 6 volt and jumper cable directly to the starter...slight spark, but no engagement. I heard years ago that a starter can get jammed with the teeth on the flywheel, so I was going to turn the engine by hand with plugs removed when I discovered the freewheeling rear wheels which I don't understand with the trans in gear...


Kens 36    -- 08-31-2024 @ 2:17 PM
  Is the opposite side wheel turning in the opposite direction? This would be normal.


MICHV8    -- 08-31-2024 @ 3:46 PM
  yes, they turn in opposite directions...I'm going to research this as I've never known much about the banjo workings.
Thanks for the help.
I'm starting to believe my spare battery was too drawn down to engage the starter...same as the one in the car. I'll find out.


carcrazy    -- 08-31-2024 @ 3:52 PM
  The differential in the rear axle allows the rear wheels to turn independently of each other. If you think the starter motor is locked up, you can (with both rear wheels on the ground) and the car in gear, rock the car back and forth to allow the starter drive gear to break free of the flywheel ring gear.


ford38v8    -- 08-31-2024 @ 5:47 PM
  Your problem may be one of several possibilities. We need more information than just “starter doesn’t engage”. Tell us the sounds and vibrations you hear and feel when you hit the starter, and by the way, identify the vehicle also.

Alan


MICHV8    -- 09-02-2024 @ 11:40 AM
  It is a 32 and I had done a continuity test of the ignition switch which was good. The original switch had fallen apart and I happened to have one from a long time ago. It worked for a couple weeks and then suddenly quit...no sounds...nothing. My initial thoughts were the flywheel teeth were involved, so I removed the starter to check for any issues, but it (and the flywheel teeth) looked good. So everything pointed back to the switch which I thought was good, but once I disassembled it I found very tarnished copper plates. Cleaned them up and all is good. I put too much faith in the continuity test and why the switch ever worked is a mystery.
Thanks for the feedback!


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