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12-30-2019, 09:17 AM | #1 |
Member
Join Date: Oct 2019
Location: Warsaw, MO
Posts: 52
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Transmission woes
The OD trans in my '49 has started to stick in gear on occasion. Placing the shift lever in neutral with the engine off and rocking the car breaks it loose. I did replace the worn linkage bushings but the problem still exists. Maybe a bent shifting fork?
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12-31-2019, 07:53 AM | #2 |
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Join Date: May 2010
Location: Auburn, MA
Posts: 2,106
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Re: Transmission woes
Did you adjust the shift linkage when you changed the bushings? With the transmission in neutral, meaning the shift levers are locked in their detent and the shifter in neutral the rods should be set to that length. Lengthen or shortern as needed to make them slide right in.
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12-31-2019, 08:31 AM | #3 |
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Join Date: May 2010
Location: Cincinnati, OH
Posts: 1,361
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Re: Transmission woes
Check both of the shifter levers down on the transmission. The 49-50 Mercury levers were rolled and bent from heavy sheet metal and after many years of use they tend to crack at the 90 degree bend (where they are pinned to the shifter shafts). If this is evident on your trans, you’ll have to repair or replace them.
Your post doesn’t say which gear position that is sticking.....or is it all of them? Another potential cause could be worn or broken front motor mounts, letting the engine settle or rock, putting the shift linkage out of alignment.
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12-31-2019, 12:19 PM | #4 |
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Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,436
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Re: Transmission woes
If it can be shifted to neutral with the gear change mechanism, it should be in neutral unless there is a lot of play in the forks or the shift levers as was mentioned. A stuck syncro or low/reverse gear shouldn't let you shift to neutral unless there is play.
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12-31-2019, 04:06 PM | #5 | |
Member
Join Date: Oct 2019
Location: Warsaw, MO
Posts: 52
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Re: Transmission woes
Quote:
When stuck the lever will go into any of the forward gear positions but not reverse. Had already planned on having the trans pulled to have all of the seals/gaskets replaced. Found a NOS low/reverse fork and cam, would it be worth replacing them since the side plate is going to be off anyway? |
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12-31-2019, 06:17 PM | #6 |
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Join Date: May 2010
Location: Cincinnati, OH
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Re: Transmission woes
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