Question about mounting a speedo gear to a hub
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
-
Topic author - Posts: 442
- Joined: Tue May 26, 2020 6:23 pm
- First Name: Morgan
- Last Name: Blanchard
- * REQUIRED* Type and Year of Model Ts owned: 1926 Model T Speedster Project, 1922 Runabout Pickup
- Location: Anchorage, Alaska
Question about mounting a speedo gear to a hub
I just received an early hub with the machined step and three holes for mounting a speedo drive gear directly to the hub. I thought the holes for mounting the gear would be threaded but they don’t seem to be. Should they be threaded and if not, how is the gear mounted?
-
- Posts: 6495
- Joined: Fri Jan 04, 2019 9:37 pm
- First Name: Steve
- Last Name: Jelf
- * REQUIRED* Type and Year of Model Ts owned: 1923 touring and a few projects
- Location: Parkerfield, Kansas
- MTFCA Number: 16175
- MTFCI Number: 14758
- Board Member Since: 2007
- Contact:
Re: Question about mounting a speedo gear to a hub
Three screws into the wood.
The inevitable often happens.
1915 Runabout
1923 Touring
1915 Runabout
1923 Touring
-
Topic author - Posts: 442
- Joined: Tue May 26, 2020 6:23 pm
- First Name: Morgan
- Last Name: Blanchard
- * REQUIRED* Type and Year of Model Ts owned: 1926 Model T Speedster Project, 1922 Runabout Pickup
- Location: Anchorage, Alaska
Re: Question about mounting a speedo gear to a hub
Do you need spacers?
-
- Posts: 408
- Joined: Sun Jan 06, 2019 10:43 am
- First Name: Art
- Last Name: Ebeling
- * REQUIRED* Type and Year of Model Ts owned: 1911 touring 14 runabout
- Location: Hillsboro IL
- MTFCA Number: 50718
Re: Question about mounting a speedo gear to a hub
This is my 11. I have not installed the small driven gear on the swivel. I think the screws and spacers came from Langs. Art
-
- Posts: 6435
- Joined: Sun Jan 06, 2019 11:18 am
- First Name: Scott
- Last Name: Conger
- * REQUIRED* Type and Year of Model Ts owned: '13, '15, '19, '23
- Location: Clark, WY
- Board Member Since: 2005
Re: Question about mounting a speedo gear to a hub
The hub with machined ring is its own spacer. Like Steve shows, you install long-ish, round head wood screws through the holes and into the wood. There are no spacers, and you'd be hard pressed to get the wood to hold so well that you manage to warp or otherwise injure the gear.
Personally, I'd pre-drill three small holes in the wood, drag the screw threads across a beeswax block and sock it down. Done.
Earlier gears like Art's, mount entirely differently and the spacers are a physical necessity to effect the mount.
Personally, I'd pre-drill three small holes in the wood, drag the screw threads across a beeswax block and sock it down. Done.
Earlier gears like Art's, mount entirely differently and the spacers are a physical necessity to effect the mount.
Scott Conger
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
-
- Posts: 408
- Joined: Sun Jan 06, 2019 10:43 am
- First Name: Art
- Last Name: Ebeling
- * REQUIRED* Type and Year of Model Ts owned: 1911 touring 14 runabout
- Location: Hillsboro IL
- MTFCA Number: 50718
Re: Question about mounting a speedo gear to a hub
Good catch Scott! I skipped right over the “machined step” part of the post. Art
-
- Posts: 322
- Joined: Tue Jun 08, 2021 12:31 am
- First Name: Ronald
- Last Name: Bakow
- * REQUIRED* Type and Year of Model Ts owned: 1915 Model T Touring
- Location: Troutman, NC
- MTFCI Number: 25350
Re: Question about mounting a speedo gear to a hub
An original speedo is great but you can get a GPS Speedo on ebay for about $50. They say it needs 9v but it works just fine on 6V
-
Topic author - Posts: 442
- Joined: Tue May 26, 2020 6:23 pm
- First Name: Morgan
- Last Name: Blanchard
- * REQUIRED* Type and Year of Model Ts owned: 1926 Model T Speedster Project, 1922 Runabout Pickup
- Location: Anchorage, Alaska
Re: Question about mounting a speedo gear to a hub
I am after a period setup. I don’t have all the parts yet but I am rebuilding my wheels so I am taking the opportunity to mount the drive gear on the wheel.
-
- Posts: 6495
- Joined: Fri Jan 04, 2019 9:37 pm
- First Name: Steve
- Last Name: Jelf
- * REQUIRED* Type and Year of Model Ts owned: 1923 touring and a few projects
- Location: Parkerfield, Kansas
- MTFCA Number: 16175
- MTFCI Number: 14758
- Board Member Since: 2007
- Contact:
Re: Question about mounting a speedo gear to a hub
...I am rebuilding my wheels...
Your wheels originally came from the factory with ball bearings. Later, about 1920, Ford changed to Timken roller bearings. The roller bearing cups were easily removed by hitting them from the back with drift and a hammer. But a drift could not reach the low-profile Timken cups. So Ford added notches to the hubs to allow a drift to drive out the Timken cups. When I was planning new wheels for my 1915 I knew I'd be using Timkens (some of the roller bearing parts are not to be had) so I wanted hubs with notches. But I also wanted the hubs to have the machined flange and screw holes for mounting a speedometer gear. Ford never made such a hub. So I used 1917-1918 hubs (a little heavier and sturdier than earlier hubs) to accommodate the gear, and cut my own notches.
My 1915 is not a show car, but I bet if it were it wouldn't lose any points for those "wrong" hubs. The difference in appearance is so subtle I doubt that judges would even notice it.
The inevitable often happens.
1915 Runabout
1923 Touring
1915 Runabout
1923 Touring