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Oliver 1800a gear jumper


 
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Sam WI
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Joined: 04 Jul 2020
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PostPosted: Thu Mar 04, 2021 11:23 pm    Post subject: Oliver 1800a gear jumper Reply to specific post Reply with quote

I have an 1800 checkerboard that jumps out of 4th and all the gears in that range. 4th being the most common to jump. You can hold the shifter in gear and it stays in gear just fine. I pulled the top cover on the transmission and don't see anything obviously wrong inside. Any thoughts would be appreciated.
 
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super99
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Joined: 19 Jan 2002
Posts: 5456
Location: Rock Island county, Ill

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PostPosted: Fri Mar 05, 2021 4:30 am    Post subject: Re: Oliver 1800a gear jumper Reply to specific post Reply with quote

Shifting fork bent and not fully engaging the gears???????
 
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J. Schwiebert
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Joined: 27 Sep 2013
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PostPosted: Fri Mar 05, 2021 5:54 am    Post subject: Re: Oliver 1800a gear jumper Reply to specific post Reply with quote

I started working on Olivers's when they were new. I will need a serial number and a phone number. My e-mail should ne open.
 
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J. Schwiebert
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PostPosted: Fri Mar 05, 2021 6:01 am    Post subject: Re: Oliver 1800a gear jumper Reply to specific post Reply with quote

Most likely your problem is on the top shaft. I need to remember from 50 years ago.
 
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ziffel
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Joined: 10 Jan 2019
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PostPosted: Fri Mar 05, 2021 7:35 am    Post subject: Re: Oliver 1800a gear jumper Reply to specific post Reply with quote

Shift rail detents. Broken spring, bad detent or bad rail.
 
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Sam WI
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PostPosted: Fri Mar 05, 2021 4:38 pm    Post subject: Re: Oliver 1800a gear jumper Reply to specific post Reply with quote

The coupler on the top shaft has some wear
between it and the fork. This should be the
coupler that engages high and low range
correct?
 
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Sam WI
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PostPosted: Fri Mar 05, 2021 5:05 pm    Post subject: Re: Oliver 1800a gear jumper Reply to specific post Reply with quote

Serial number is 120 836 892. My phone number is 608-206-3796.
 
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