HarleyTechTalk

Technical Forums => Twin Cam => Topic started by: CarlosGGodfrog on November 11, 2018, 11:53:14 AM

Title: Early TC speed sensor
Post by: CarlosGGodfrog on November 11, 2018, 11:53:14 AM
How does the speed sensor work ? By this I mean what does it detect ? Does the Baker 6 into 5 work with a stock (2000 Heritage) speed sensor ?
Title: Re: Early TC speed sensor
Post by: jls 64 on November 11, 2018, 12:31:48 PM
I thing it will,but you.mast recalibrate your spedometer,googgle sim1A fron dakota digital,vss send pulses to spedometer. I thing baker provide de recalibration unit with the kit.sorry my inglsh.
Title: Re: Early TC speed sensor
Post by: CarlosGGodfrog on November 11, 2018, 01:46:25 PM
How is it different than the HD 6 speed ?
Title: Re: Early TC speed sensor
Post by: jls 64 on November 11, 2018, 02:37:43 PM
conector type,2000 have deutz type, and the signal goes throw de pc to speedometer,when you change to six speed no longer reed the same,pulses it pickup the signal from different gear,better put new oem same part number  amd sin1 or similar  so you correct the new pulses.

                                                      jls
Title: Re: Early TC speed sensor
Post by: smoserx1 on November 11, 2018, 03:21:42 PM
QuoteHow does the speed sensor work ? By this I mean what does it detect ?
My understanding is it reads the teeth on the 4th gear on the mainshaft.  I guess the increasing frequency from the faster spinning gear is sent to the speedometer and interpreted as a speed.
Title: Re: Early TC speed sensor
Post by: jls 64 on November 11, 2018, 04:08:14 PM
 yup,so he must recalibrate the speedometer,can use the old vss plus a sin1  for correct the pulses
Title: Re: Early TC speed sensor
Post by: Pirsch Fire Wagon on November 11, 2018, 04:59:53 PM
1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.
Title: Re: Early TC speed sensor
Post by: FSG on November 11, 2018, 05:40:05 PM
counts teeth on 4th gear

http://harleytechtalk.com/htt/index.php?topic=95816.0
Title: Re: Early TC speed sensor
Post by: koko3052 on November 11, 2018, 09:46:54 PM
Quote from: PIRSCH FIRE WAGON on November 11, 2018, 04:59:53 PM
1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.

That is correct! :up:
Title: Re: Early TC speed sensor
Post by: FSG on November 12, 2018, 05:17:25 AM
Quote from: koko3052 on November 11, 2018, 09:46:54 PM
Quote from: PIRSCH FIRE WAGON on November 11, 2018, 04:59:53 PM
1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.

That is correct! :up:

depends on how you look at it

stock 5 speed it counts the teeth on 4th gear, change the gearset to something other than a stock 4th gear or a 6 into a 5 box and that speed sensor is going to be counting something different so a calibration unit is going to be needed
Title: Re: Early TC speed sensor
Post by: 1FSTRK on November 12, 2018, 05:30:24 AM
Quote from: FSG on November 12, 2018, 05:17:25 AM
Quote from: koko3052 on November 11, 2018, 09:46:54 PM
Quote from: PIRSCH FIRE WAGON on November 11, 2018, 04:59:53 PM
1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.

That is correct! :up:

depends on how you look at it

stock 5 speed it counts the teeth on 4th gear, change the gearset to something other than a stock 4th gear or a 6 into a 5 box and that speed sensor is going to be counting something different so a calibration unit is going to be needed

FSG  :up: :up:
Title: Re: Early TC speed sensor
Post by: Pirsch Fire Wagon on November 12, 2018, 06:56:28 AM
Quote from: FSG on November 12, 2018, 05:17:25 AM
Quote from: koko3052 on November 11, 2018, 09:46:54 PM
Quote from: PIRSCH FIRE WAGON on November 11, 2018, 04:59:53 PM
1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.

That is correct! :up:

depends on how you look at it

stock 5 speed it counts the teeth on 4th gear, change the gearset to something other than a stock 4th gear or a 6 into a 5 box and that speed sensor is going to be counting something different so a calibration unit is going to be needed

Yes, the 4th Gear on the Main Shaft is what is used. The spacing of the Teeth are the "Window-Open (Open)" and the Teeth are "Window Closed (Ground)". The Shaft itself has no such machining.
Title: Re: Early TC speed sensor
Post by: koko3052 on November 12, 2018, 07:05:36 AM
Quote from: FSG on November 12, 2018, 05:17:25 AM
Quote from: koko3052 on November 11, 2018, 09:46:54 PM
Quote from: PIRSCH FIRE WAGON on November 11, 2018, 04:59:53 PM
1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.

That is correct! :up:

depends on how you look at it

stock 5 speed it counts the teeth on 4th gear, change the gearset to something other than a stock 4th gear or a 6 into a 5 box and that speed sensor is going to be counting something different so a calibration unit is going to be needed

I was only agreeing with what Pirsch Fire Wagon was referring to as last winter I installed Bakers DD6 into my 05 Fatty. The kit included a speed sensor to be changed & a calibration unit. The calibration unit is perfect as I adjusted it with my GPS & now my stock speedo is dead on the money. I'm sure that most of us know that harley speedos always read higher than actual....maybe that's only on black bikes?? :wink:
Title: Re: Early TC speed sensor
Post by: CarlosGGodfrog on November 12, 2018, 10:20:19 AM
Thanks for the explanations guys.
Title: Re: Early TC speed sensor
Post by: CarlosGGodfrog on November 26, 2018, 06:57:01 PM
To KoKo3052 - when you recal via gps, is the speedo correct in all gears, or just in 6th (on a 6 into 5) ?
Title: Re: Early TC speed sensor
Post by: koko3052 on November 27, 2018, 06:41:58 AM
Speedo is correct in all gears. :up:
Title: Re: Early TC speed sensor
Post by: CarlosGGodfrog on November 27, 2018, 08:49:57 AM
Thanks.
Title: Re: Early TC speed sensor
Post by: PoorUB on November 27, 2018, 10:17:52 AM
Carlos, the speedometer reads the output shaft speed so it doesn't matter what gear you are in, or even if you are not in gear.
Title: Re: Early TC speed sensor
Post by: CarlosGGodfrog on November 28, 2018, 11:22:42 AM
Others have said it reads the teeth on fourth gear. Now I'm confused. Reading the output shaft makes sense.
Title: Re: Early TC speed sensor
Post by: PoorUB on November 28, 2018, 11:24:41 AM
Forth gear on the output shaft. Both comments are correct.