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Old 04-12-2018, 11:10 AM   #1
Jamie L
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Default Front Motor Mount Adjustment

How tight should the center bottom nut be on the front motor mount yoke be? Should it compress the springs? Just tight enough to get the cotter pin in the castle nut?

Last edited by Jamie L; 04-12-2018 at 12:10 PM. Reason: misspelling
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Old 04-12-2018, 11:51 AM   #2
1955cj5
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Default Re: Front Motor Mound Adjustment

I found on my ccpu that if the spring was overly compressed there was more noticeable vibration, especially on deceleration.

I would go with the "just tight enough to get the cotter pin in...."
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Old 04-12-2018, 12:10 PM   #3
Jamie L
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Default Re: Front Motor Mound Adjustment

Thanks!
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Old 04-12-2018, 12:20 PM   #4
1955cj5
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Default Re: Front Motor Mount Adjustment

Welcome to The Barn!

Which Model A do you have?
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Old 04-12-2018, 12:55 PM   #5
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Default Re: Front Motor Mount Adjustment

Yup just tight enough to slip cotter in.
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Old 04-13-2018, 10:03 AM   #6
redmodelt
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Default Re: Front Motor Mount Adjustment

Never mind, sorry I was thinking of something else.
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Old 04-13-2018, 10:40 AM   #7
Kahuna
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Default Re: Front Motor Mount Adjustment

Funny Red, I never heard it called Cotter.
Learn something new every day. LOL
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Old 04-13-2018, 06:31 PM   #8
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Default Re: Front Motor Mount Adjustment

Quote:
Originally Posted by Kahuna View Post
Funny Red, I never heard it called Cotter.
Learn something new every day. LOL
They're actually a split pin! Cotter pins are an entirely different thing.
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Old 04-13-2018, 06:37 PM   #9
1955cj5
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Default Re: Front Motor Mount Adjustment

Uncle google knows...


cot·ter pin
ˈkädər ˌpin
noun
noun: cotter pin; plural noun: cotter pins; noun: cotter; plural noun: cotters
a metal pin used to fasten two parts of a mechanism together.
a split pin that is opened out after being passed through a hole.
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Old 04-13-2018, 10:55 PM   #10
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Default Re: Front Motor Mount Adjustment

Yea well its a cotter pin round these parts :P
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Old 04-14-2018, 04:10 PM   #11
imacrazy
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Default Re: Front Motor Mount Adjustment

It's been a cotter pin all of my 82years.
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Old 04-14-2018, 05:27 PM   #12
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Default Re: Front Motor Mount Adjustment

Only 82 years! Heck, people believed he earth was flat for centuries. Refer to 1955's post.
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Old 04-15-2018, 06:05 PM   #13
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Default Re: Front Motor Mount Adjustment

They have been called "cotter pins" for at least 133 years. Before I was born!

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Old 04-15-2018, 06:51 PM   #14
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Default Re: Front Motor Mount Adjustment

You guys have changed the terminology of a few things over the years. When did the ring gear move from the flywheel to the diff? I don't know how these things happen but they do - evolution?
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Old 04-15-2018, 07:32 PM   #15
kimeccles
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Default Re: Front Motor Mount Adjustment

Well it is "really" a cotter key where I come from...
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Old 04-15-2018, 07:44 PM   #16
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Default Re: Front Motor Mount Adjustment

Here is another USA patent for a Cotter pin.

I have never seen one of these.
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Old 04-15-2018, 07:47 PM   #17
kimeccles
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Default Re: Front Motor Mount Adjustment

The Cotter Key was invented by an Irish man named John Cotter in 1922. Originally used to hold fastners together on cabinets, Cotter keys found other purposes that seemed to be better suited than for that reason, such as, holding the Nuts on a bolt.
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