Gear Oil - How much

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Model T Ford Forum: Forum 2013: Gear Oil - How much
Top of pagePrevious messageNext messageBottom of page Link to this message  By Bud Holzschuh - Panama City, FL on Friday, September 27, 2013 - 08:57 am:

Lots of posts on what gear oil to use in the pumpkin - can't find any on how much.

Will a quart do, or do I need to get the gallon size? (15 touring).

Thanks


Top of pagePrevious messageNext messageBottom of page Link to this message  By James Chochole on Friday, September 27, 2013 - 09:25 am:

Maybe this is too basic- but I remember someone telling me to fill it until your finger tip gets oily when you stick it in and point it down towards the bottom of the pumpkin.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Zahorik on Friday, September 27, 2013 - 09:28 am:

On my 1926, I fill it thru the filler plug and add until the oil is level with the bottom of the plug hole. Kind of an automatic setup. Make sure the car is level. One quart is more than enough.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Strange on Friday, September 27, 2013 - 09:30 am:

Here's an earlier thread on the subject:

http://www.mtfca.com/discus/messages/80257/90909.html


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Friday, September 27, 2013 - 09:35 am:

Here's some info from the Ford Dealer Data book 1923:
http://www.mtfca.com/books/ford.htm#mot
"Differential 1-1/4 lbs. grease."

In the Ford manual (1921) instructions were:
http://www.mtfca.com/books/21manual.htm
"Do not make the mistake of putting too much grease in the differential housing. The housing should not be more than one-third full."


Top of pagePrevious messageNext messageBottom of page Link to this message  By ROBERT BERGSTADT on Friday, September 27, 2013 - 10:00 am:

1/2" Under plug. Bob


Top of pagePrevious messageNext messageBottom of page Link to this message  By William L Vanderburg on Friday, September 27, 2013 - 10:15 am:

That 1/2" under the plug that Robert talks about will put the gear oil just touching the gear. Which is exactly just what it's supposed to do. If you read the manuals, of course....LOL


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Friday, September 27, 2013 - 10:15 am:

Which one of them, Bob?
Bud has a '15 Touring. They had the plug at the mid point of the pumpkin, causing a lot of overfilled rear axles. In the manual Ford wrote: "If a fluid grease is used the level should be approximately one and one-half inches below the oil hole."

Later on Ford lowered the plug to about the one third level, making overfilling less of a problem.


Top of pagePrevious messageNext messageBottom of page Link to this message  By ROBERT BERGSTADT on Friday, September 27, 2013 - 10:31 am:

I always go 1/2" under plug and never had a problem,Bob


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Friday, September 27, 2013 - 10:34 am:

So I guess you're talking about the later more common rear axles with the lower filling plug?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Walker, NW AR on Friday, September 27, 2013 - 12:10 pm:

Since the filler holes were in different places in some years, I don't think using that as a guide is a very good way to do it. 1-1/4 lbs (which equals 1-1/4 pints) is always right.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dave Hjortnaes, Men Falls, WI on Friday, September 27, 2013 - 09:14 pm:

I would say a pint is enough. Maybe a pinch more if you think it needs it.


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