Governor seal- which side?

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ParlowMillFarm
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Governor seal- which side?

Postby ParlowMillFarm » Tue Jan 03, 2017 5:16 pm

Just a quick question,

I have a NAK Governor Seal. It is not the type that has a steel ring on one side. Which side is the inside?

Also, is 23/32" the right inset for this? ( I noticed some have to be set deeper, but I don't know what the criteria is.)

John

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Steve Butram
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Re: Governor seal- which side?

Postby Steve Butram » Tue Jan 03, 2017 5:48 pm

spring side to the inside.
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Glen
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Re: Governor seal- which side?

Postby Glen » Tue Jan 03, 2017 6:01 pm

Hi,
I don't know what your seal looks like without a pic, but the seal lip has to face forward.
Here is a page from the Cub service manual showing it and the measurement for installing it.
It's in the lower half of the page, the upper half is something else.
Smooth the surface on the governor gear where the seal runs as much as you can.
The guys have said if it's worn much, you can slightly move the seal in the hole so it runs on a smoother place on the gear, don't move the seal too far ahead.
Be careful when putting the governor in, not to push the seal lip backwards. :)

http://www.farmallcub.info/manuals/gss- ... 002-16.jpg

ParlowMillFarm
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Re: Governor seal- which side?

Postby ParlowMillFarm » Tue Jan 03, 2017 9:40 pm

Steve and Glen,

Thanks for the replies. This will go in tomorrow.

As to depth, I was asking because of this post http://www.farmallcub.com/phpBB2/viewto ... seal+depth

Seems like I start with 23/32 and perhaps add up to 1/8 based on fit.

John

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Glen
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Re: Governor seal- which side?

Postby Glen » Tue Jan 03, 2017 10:30 pm

Hi,
If your new seal is thinner than the old seal, you might have to put it in a little farther, like Boss Hog, and others said in the post you posted above. You might have to fit it to a place on the gear that is not worn. :)

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Steve Butram
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Re: Governor seal- which side?

Postby Steve Butram » Wed Jan 04, 2017 6:26 am

Rule of thumb on most seals, The lip side goes to the oil. Also make sure you set the seal at the correct depth. I use a special tool to set it in the governor housing.
Be prepared to be unprepared Seth Goden

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Re: Governor seal- which side?

Postby inairam » Wed Jan 04, 2017 6:56 am

Earls tool for the seal viewtopic.php?f=1&t=94801
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Re: Governor seal- which side?

Postby JohnMihevic » Wed Jan 04, 2017 1:31 pm

Another point. If you are installing the seal from the magneto side of the shaft, put some kind of tape over the two magneto drive slots as you slide the seal over the shaft. It is very easy to nick the seal, the slightest nick will cause a leak. I used electrical tape. Also use plenty of oil on the shaft as you press the seal in. Once the seal is in, remove the tape. I had to put mine in three times before I got it right.

John M.

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Re: Governor seal- which side?

Postby ParlowMillFarm » Sat Jan 07, 2017 4:53 pm

Hey Guys,

Thanks for the tips. I made a cheaper version of the installation tool and just marked the depth on the block of wood in about six places.

The new seal is thinner than my old National seal so I had to seat it 3/64 deeper to take in the difference in seal thickness.

I do have a problem that is probably a simple solution but I'm stuck with my current knowledge base.

I have the governor slots at 2 and 8. When I turn the mag to #1 position the lugs are at 5 and 11. There is no enough play in the timing adjustment for me to get the mag in what I think is the right position ( before snapping #1 cyl.)
:help:

John

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Re: Governor seal- which side?

Postby Jim Becker » Sat Jan 07, 2017 7:56 pm

Turn the magneto backwards until the rotor is in the right place and the lugs mesh.

If that doesn't work, timing internal to the magneto is off.

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Rick Spivey
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Re: Governor seal- which side?

Postby Rick Spivey » Sun Jan 08, 2017 8:06 am

To elaborate on what Jim said, from your description, it sounds as if the internal magneto timing is off. Assuming you have a true magneto and not a distributor, timing (internal) is set by aligning the cast marks on the rotor versus the drive pinion. These are hidden under the bakelite cover on the end of the magneto that covers the points and condenser. Both parts should have a cast mark (line on rotor, dot or triangle on pinion) to align them.
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ParlowMillFarm
5+ Years
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Posts: 157
Joined: Mon Oct 17, 2011 4:56 pm
Zip Code: 02738
Tractors Owned: 1949 Cub
1964 JD1010
Location: Marion, Massachusetts

Re: Governor seal- which side?

Postby ParlowMillFarm » Wed Jan 11, 2017 10:20 am

Rick and Jim,

Thanks for your advice.

I went back to an old post of Jim's and another on setting up the mag and printed them out..

Went out to the barn and didn't second guess, just followed directions.

Installed mag and turned the crank a few times - 180 degrees off! Well that is easily solve. Took off mag and reset. Now all is good.

John


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