Playback tach magnet question

Dave Toce · 03-11-2009, 08:13 PM

I have a 2 channel Autometer playback tach that I use to record every pass I make to make sure the clutch tuning is in line. I just changed a rear gear and when running in the new gear this past weekend I had the magnets come off in the driveway. It appears that the JB weld de-bonded from the U-joint cap. Is there a better or an improved method to attach the two magnets to the driveshaft U-joint caps besides the JB weld that Autometer suggests?
Thanks
Dave

Oopps I just realized I put this in the wrong section sorry..

Larry Hill · 03-11-2009, 09:08 PM

Mark Williams is the answer.

Dave Toce · 03-11-2009, 09:11 PM

Quote:

Originally Posted by Larry Hill

Mark Williams is the answer.

10/4, I just got a call saying the same. Thanks
Dave

Ed Carpenter · 03-11-2009, 09:23 PM

Collar from Williams

west coast · 03-12-2009, 01:49 PM

Autometer also has collars a couple differant rear end sizes and a universal one you can machine.

Bob Mulry · 03-12-2009, 07:30 PM

Hi,

Sometimes there are clearance issues with the collar around the companion flange.

As an alternative solution, you can drill the companion flange and insert the magnets with a little epoxy.

Worked for us,
Bob

03-11-2009, 08:13 PM	#1
Dave Toce Junior Member Join Date: Aug 2004 Posts: 34 Likes: 2 Liked 0 Times in 0 Posts	Playback tach magnet question I have a 2 channel Autometer playback tach that I use to record every pass I make to make sure the clutch tuning is in line. I just changed a rear gear and when running in the new gear this past weekend I had the magnets come off in the driveway. It appears that the JB weld de-bonded from the U-joint cap. Is there a better or an improved method to attach the two magnets to the driveshaft U-joint caps besides the JB weld that Autometer suggests? Thanks Dave Oopps I just realized I put this in the wrong section sorry.. Last edited by Dave Toce; 03-11-2009 at 08:15 PM.

03-11-2009, 09:08 PM	#2
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,650 Likes: 1,941 Liked 10,763 Times in 2,237 Posts	Re: Playback tach magnet question Mark Williams is the answer. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

03-11-2009, 09:23 PM	#4
Ed Carpenter Live Reporter Join Date: May 2006 Location: Dripping Springs, Tx Posts: 2,709 Likes: 186 Liked 520 Times in 132 Posts	Re: Playback tach magnet question Collar from Williams __________________ Ed Carpenter 2005 Chevy Cobalt A/SM Race Engine Development

03-12-2009, 01:49 PM	#5
west coast Senior Member Join Date: Dec 2008 Location: Rainy Washington Posts: 609 Likes: 12 Liked 223 Times in 73 Posts	Re: Playback tach magnet question Autometer also has collars a couple differant rear end sizes and a universal one you can machine.

03-12-2009, 07:30 PM	#6
Bob Mulry VIP Member Join Date: Apr 2002 Location: Coarsegold, CA Posts: 1,016 Likes: 57 Liked 320 Times in 102 Posts	Re: Playback tach magnet question Hi, Sometimes there are clearance issues with the collar around the companion flange. As an alternative solution, you can drill the companion flange and insert the magnets with a little epoxy. Worked for us, Bob __________________ Bob Mulry 7516 STK A & M Motorsports