Autometer Driveshaft sensor magnet question

Bobby Fazio · 08-02-2012, 03:29 PM

I've had the autometer playback II tach with the driveshaft sensor for the last 3 years and a few races ago i lost the magnets going downtrack. I just bought the racepak collar with the magnets embedded so I wouldnt have to mess around with the autometer way of JB welding magnets into the driveshaft . However, autometer sensor requires the south side of the magnet to face up and the racepak magnets have north side facing up so I'm not getting any reading. I think I will have to get a racepak sensor but don't know if this will hook up to the autometer tach harness. Anyone else ever have this problem?

Todd Geisler · 08-03-2012, 06:14 PM

Wouldn't it be just easier to get an Autometer slip collar?

ss3011 · 08-03-2012, 08:23 PM

I use a MW collar with my Ultimate II Tach, works great, they are captured and can't come out .

KRatcliff · 08-03-2012, 08:30 PM

Quote:

Originally Posted by Todd Geisler

Wouldn't it be just easier to get an Autometer slip collar?

Yeah, they won't stick to my carbon fiber.

Ed Carpenter · 08-03-2012, 11:29 PM

Quote:

Originally Posted by ss3011

I use a MW collar with my Ultimate II Tach, works great, they are captured and can't come out .

X2 that's what I use with my Autometer tach.

MOTORSPORTS Innovations · 08-06-2012, 03:23 PM

Quote:

Originally Posted by SStock1373

I and the racepak magnets have north side facing up so I'm not getting any reading. I think I will have to get a racepak sensor but don't know if this will hook up to the autometer tach harness. Anyone else ever have this problem?

Racepak magnets are SOUTH side out. That is what most hall effect sensors need to trigger. Is the Auto Meter a 2 wire or 3 wire sensor?

Bobby Fazio · 08-06-2012, 05:21 PM

I didn't know autometer made a slip collar and other racers told me about the racepak collar so that's what I ordered. It turns out I had a bad sensor, I tried another Autometer sensor and it fixed the problem. Yes the racepak magnets are definitely south side facing out and everything is working fine now. Thanks guys.

west coast · 08-07-2012, 03:30 PM

Autometer does make collars they have a universal one that you bore to what ever you need, it is hard to find I dont think it is on the website. Got mine for a 9 inch ford years ago from summit. If this is on your fox body here is what i did on mine. Got some magnets online the little super magnets 1/4 round, drilled my rear end yoke glued in with a 2 part expoxy. Mounted my sensor off a braket one of the holes in front of the rear end. Hope this helps. Here are some autometer collar #
Drive Shaft Collar, 2 Magnet, 1.875" ID
Product #:
9378
For use with Ultimate II Playback tachometer driveshaft RPM sensors.

Drive Shaft Collar, 2 Magnet, 2.187" ID
Product #:
9379
For use with Ultimate II Playback tachometer driveshaft RPM sensors.

Drive Shaft Collar, 2 Magnet, Universal
Product #:
9380
For use with Ultimate II Playback tachometer driveshaft RPM sensors.

08-02-2012, 03:29 PM	#1
Bobby Fazio VIP Member Join Date: Nov 2009 Location: Egg Harbor Township, NJ Posts: 1,467 Likes: 1,441 Liked 4,365 Times in 501 Posts	Autometer Driveshaft sensor magnet question I've had the autometer playback II tach with the driveshaft sensor for the last 3 years and a few races ago i lost the magnets going downtrack. I just bought the racepak collar with the magnets embedded so I wouldnt have to mess around with the autometer way of JB welding magnets into the driveshaft . However, autometer sensor requires the south side of the magnet to face up and the racepak magnets have north side facing up so I'm not getting any reading. I think I will have to get a racepak sensor but don't know if this will hook up to the autometer tach harness. Anyone else ever have this problem? __________________ '65 Mustang SS/L & L/SA DriverInterviews.com \| App.DragInsights.com

08-03-2012, 06:14 PM	#2
Todd Geisler Member Join Date: Feb 2002 Posts: 328 Likes: 64 Liked 345 Times in 149 Posts	Re: Autometer Driveshaft sensor magnet question Wouldn't it be just easier to get an Autometer slip collar?

08-03-2012, 08:23 PM	#3
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 908 Likes: 70 Liked 238 Times in 113 Posts	Re: Autometer Driveshaft sensor magnet question I use a MW collar with my Ultimate II Tach, works great, they are captured and can't come out .

08-06-2012, 05:21 PM	#7
Bobby Fazio VIP Member Join Date: Nov 2009 Location: Egg Harbor Township, NJ Posts: 1,467 Likes: 1,441 Liked 4,365 Times in 501 Posts	Re: Autometer Driveshaft sensor magnet question I didn't know autometer made a slip collar and other racers told me about the racepak collar so that's what I ordered. It turns out I had a bad sensor, I tried another Autometer sensor and it fixed the problem. Yes the racepak magnets are definitely south side facing out and everything is working fine now. Thanks guys. __________________ '65 Mustang SS/L & L/SA DriverInterviews.com \| App.DragInsights.com Last edited by Bobby Fazio; 08-10-2012 at 08:01 AM.

08-07-2012, 03:30 PM	#8
west coast Senior Member Join Date: Dec 2008 Location: Rainy Washington Posts: 608 Likes: 12 Liked 220 Times in 72 Posts	Re: Autometer Driveshaft sensor magnet question Autometer does make collars they have a universal one that you bore to what ever you need, it is hard to find I dont think it is on the website. Got mine for a 9 inch ford years ago from summit. If this is on your fox body here is what i did on mine. Got some magnets online the little super magnets 1/4 round, drilled my rear end yoke glued in with a 2 part expoxy. Mounted my sensor off a braket one of the holes in front of the rear end. Hope this helps. Here are some autometer collar # Drive Shaft Collar, 2 Magnet, 1.875" ID Product #: 9378 For use with Ultimate II Playback tachometer driveshaft RPM sensors. Drive Shaft Collar, 2 Magnet, 2.187" ID Product #: 9379 For use with Ultimate II Playback tachometer driveshaft RPM sensors. Drive Shaft Collar, 2 Magnet, Universal Product #: 9380 For use with Ultimate II Playback tachometer driveshaft RPM sensors. Last edited by west coast; 08-07-2012 at 03:36 PM.