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Mechanical Speedo Repair Q: Magnets #1329258
10/31/12 06:52 PM
10/31/12 06:52 PM
Joined: Oct 2007
Posts: 2,886
US of A
A38s! Offline OP
master
A38s!  Offline OP
master

Joined: Oct 2007
Posts: 2,886
US of A
Want to use a 85 mph M-body speedo to repair a M-body cop unit.

Cop speedo would jump. Thinking it was bushings, thought I'd swap some in. Problem turned out to be a crack in the nylon shaft, causing the magnet arms to wobble enough and contact the field plate cup.

Are the 85-125 magnets the same? Size-wise, they're identical, but could they be diff "strengths".

Pic 1

7443149-magcrack.jpg (40 downloads)

WANTED: Your 71-78 Late B-body sedan parts! Police or Civilian.
Re: Mechanical Speedo Repair Q: Magnets [Re: A38s!] #1329259
10/31/12 06:53 PM
10/31/12 06:53 PM
Joined: Oct 2007
Posts: 2,886
US of A
A38s! Offline OP
master
A38s!  Offline OP
master

Joined: Oct 2007
Posts: 2,886
US of A
No PNs anywhere.

Pic 2

7443150-mag2.jpg (62 downloads)

WANTED: Your 71-78 Late B-body sedan parts! Police or Civilian.
Re: Mechanical Speedo Repair Q: Magnets [Re: A38s!] #1329260
10/31/12 10:52 PM
10/31/12 10:52 PM
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
It looks identical & I'd be surprised if it wasn't the exact same strength


live every 24 hour block of time like it's your last day on earth
Re: Mechanical Speedo Repair Q: Magnets [Re: RapidRobert] #1329261
10/31/12 10:54 PM
10/31/12 10:54 PM
Joined: Jan 2003
Posts: 32,943
Grand Prairie,Texas
stumpy Offline
I Win
stumpy  Offline
I Win

Joined: Jan 2003
Posts: 32,943
Grand Prairie,Texas
Same measurements should mean same strength.







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