transmission bearing clearances.

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Topic author
johnr
Posts: 57
Joined: Wed Mar 16, 2022 2:09 pm
First Name: John
Last Name: Delamater
* REQUIRED* Type and Year of Model Ts owned: 1927 Depot Hack
Location: Huron, Ohio

transmission bearing clearances.

Post by johnr » Thu Oct 17, 2024 12:52 pm

Could someone direct me to where I could go and get component diameters and
bearing clearances for the transmission. looking for information on what is the
minimum and maximum clearance between the shafts and bushing.
Thank you.


speedytinc
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Last Name: karvaly
* REQUIRED* Type and Year of Model Ts owned: 14/15 wide track roadster. 23 touring, 27 roadster pickup, 20ish rajo touring
Location: orange, ca
Board Member Since: 2020

Re: transmission bearing clearances.

Post by speedytinc » Thu Oct 17, 2024 1:16 pm

T1 service manual is clear on acceptable limits. .006" is too worn/loose.


Joe Bell
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Location: Tiffin Ohio

Re: transmission bearing clearances.

Post by Joe Bell » Thu Oct 17, 2024 1:20 pm

John, you can stop down and use my KR Wilson reamers for your trans quick and easy!


Topic author
johnr
Posts: 57
Joined: Wed Mar 16, 2022 2:09 pm
First Name: John
Last Name: Delamater
* REQUIRED* Type and Year of Model Ts owned: 1927 Depot Hack
Location: Huron, Ohio

Re: transmission bearing clearances.

Post by johnr » Thu Oct 17, 2024 3:46 pm

Thank you for the information.

Joe I might take you up on your offer.

User avatar

Craig Leach
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* REQUIRED* Type and Year of Model Ts owned: 1919 Firetruck/1922 Speedster
Location: Laveen Az

Re: transmission bearing clearances.

Post by Craig Leach » Tue Oct 22, 2024 12:52 am

Hi John,
I would take Joe up on the offer. I have taken apart transmissions that where so sloppy I didn't know how they even worked but they did &
where smooth & quite & some that where set up so tight that all the bushings where seized to the shaft they where supposed to turn on &
turning in the bore they where supposed to be pressed into. Joe has the tools to do it wright.
Craig.


Allan
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* REQUIRED* Type and Year of Model Ts owned: 1912 van, 1917 shooting brake, 1929 roadster buckboard, 1924 tourer, 1925 barn find buckboard, 1925 D &F wide body roadster, 1927LHD Tudor sedan.
Location: Gawler, Australia

Re: transmission bearing clearances.

Post by Allan » Tue Oct 22, 2024 2:23 am

Using old time tooling that included fixed reamers is ideal on new parts. However, there can be a better way with worn parts. Gear shafts wear where the bushes run, leaving the gears proud of the worn shaft surface. This can be compensated for by machining the bushes for a slight interference fit over the gears. When the drums are assembled, this interference fit is abetter fit on the worn section of the shaft.

Allan from down under.


Dan Hatch
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Location: Alabama

Re: transmission bearing clearances.

Post by Dan Hatch » Tue Oct 22, 2024 5:39 am

Sunnen hone.

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