Re : Speedometer

[Warren]

I'll throw 25 bucks at the project even though I don't need one Hoghead.

 

[Hoghead]

I have at least one 15T gear in Vancouver, and will be there in a week. It will take some time to get some made, but I will get on it
200 USD for a speedo gear is a bit much.........................................At that price it is better to buy a new Tiger GPS speedometer from Jim Gislason

 

[66TigerMK1A]

I know this is an old thread but I have one of those NLA 15 tooth gears if anyone needs one... also have 16 tooth but I know those aren't hard to find

 

[rfraser]

Mk I B7C-17285-A Driving gear 6 teeth C0DD-17271-A speedometer cable gear 15 teeth
Mk II C2OZ-17285 Driving gear 7 teeth C3DZ-17271-B speedometer cable gear 17 teeth

If you go to the 15 teeth gear with the 980 speedometer you need tires that have a circumference around 74.5 inches
16 teeth with 980 speedometer you need tires that have a

 

[rfraser]

Mk I B7C-17285-A driving gear 6 teeth in transmission C0DD-17271-A speedometer cable gear 15 teeth
Mk II C2OZ-17285-D driving gear 7 teeth C3DZ-17271-B speedometer cable gear 17 teeth
The 15 teeth gear is no longer available. 16 and 17 teeth gears are available.

If you go for the 15 teeth gear with the 980 speedometer you will need tires with a circumference around 74.5 inches
16 teeth gear with 980 speedometer you need tires with a circumference around 70 inches.

MK II 17 teeth gear with 1020 speedometer you need tires with a circumference around 73.7 inches.
Ron Fraser

 

[o2bdriving]

Mk I B7C-17285-A driving gear 6 teeth in transmission C0DD-17271-A speedometer cable gear 15 teeth
Mk II C2OZ-17285-D driving gear 7 teeth C3DZ-17271-B speedometer cable gear 17 teeth
The 15 teeth gear is no longer available. 16 and 17 teeth gears are available.

If you go for the 15 teeth gear with the 980 speedometer you will need tires with a circumference around 74.5 inches
16 teeth gear with 980 speedometer you need tires with a circumference around 70 inches.

MK II 17 teeth gear with 1020 speedometer you need tires with a circumference around 73.7 inches.
Ron Fraser

17-tooth gear. https://www.ebay.com/itm/222679595026?chn=ps&_trkparms=ispr=1&amdata=enc:18xaPGRLBQUyeRX3j-fr5tw63&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&mkscid=101&itemid=222679595026&targetid=&device=c&mktype=&googleloc=&poi=&campaignid=422360567&mkgroupid=1241348871580879&rlsatarget=&abcId=&merchantid=0

 

[Austin Healer]

Speaking of : Has anyone found a source for the MK1 LH driven gear ?

NPD has 16 tooth ones

 

[Agent 861]

Dont need a 3d scan .. Just accurate dimensions and the pitch of the teeth .. Can then 3d model it

Once you had modelled it you could print it in just about anything and then use that as your pattern to cast it it in whatever you wanted (like bronze) -The advantage of 3D modelling and casting is you easily can expand the pattern to account for any shrinkage losses in the casting process -Used often in the vintage car world by people smarter than me to reproduce unobtainable parts and works really well .

 

[michael-king]

Once you had modelled it you could print it in just about anything and then use that as your pattern to cast it it in whatever you wanted (like bronze) -The advantage of 3D modelling and casting is you easily can expand the pattern to account for any shrinkage losses in the casting process -Used often in the vintage car world by people smarter than me to reproduce unobtainable parts and works really well .

This project stalled due to a lack of time in the last couple of months... But I was working on a fake halibrand pin drive style spinner for some wheels.

I have a friend with a 4 axis HAAS CNC so we can have it milled.. or we could do one then cast them.

 

[CobraTiger]

any idea of the cost or timeframe Michael. They look very interesting