speedometer/odometer problem
Thread Starter
Instructor
Joined: Apr 2008
Posts: 165
Likes: 0
From: Burnsville NC
speedometer/odometer problem
Hey Guys & Gals, need some advice please.
I recently had my 63 ( L-75) fitted with a 700R-4 Trans.
Took off on a 1,600 mile trip to FL. 5 miles out side of town the speedometer quit working, went down to zero and the odometer went to : 10000.Now, I know they did some changing with the plastic gear in the tranny. Where would you start looking or has anyone had this problem. Kinda squirley driving by the Tach.
Thanks
Jeff
I recently had my 63 ( L-75) fitted with a 700R-4 Trans.
Took off on a 1,600 mile trip to FL. 5 miles out side of town the speedometer quit working, went down to zero and the odometer went to : 10000.Now, I know they did some changing with the plastic gear in the tranny. Where would you start looking or has anyone had this problem. Kinda squirley driving by the Tach.
Thanks
Jeff
Le Mans Master
Joined: Feb 2008
Posts: 5,215
Likes: 447
From: NJ Hockey beer league
Start checking the easiest stuff first. Pull the speedo cable off at the tranny and see if it broke. If not, try spinning it by hand and see if it turns the speedo head. If so, the problem is likely in your tranny output (plastic) gear. If not, (I have saved the worst for last) the problem is in the speedo head (the gears commonly wear) and the instrument cluster will have to come out to repair it. Good luck! 
Pilot Dan
Pilot Dan
Thread Starter
Instructor
Joined: Apr 2008
Posts: 165
Likes: 0
From: Burnsville NC
Thanks Pilot Dan,
I will check it out on my friends lift.
Hoping it is not the instrument itself because when I got it ( 2 years ago) there was a sticker on the unserdash cover of the speedometer with the name and adderess of a guage rebulider in FL.
Thanks agan
Jeff
I will check it out on my friends lift.
Hoping it is not the instrument itself because when I got it ( 2 years ago) there was a sticker on the unserdash cover of the speedometer with the name and adderess of a guage rebulider in FL.
Thanks agan
Jeff
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
Le Mans Master
Joined: Feb 2008
Posts: 5,215
Likes: 447
From: NJ Hockey beer league
Depending on what type of gears were previously used to rebuild your speedo, you could have plastic instead of metal ones in there which don't wear very well. Let us know what you find.
Pilot Dan
Le Mans Master
Joined: Feb 2008
Posts: 5,215
Likes: 447
From: NJ Hockey beer league
Sounds like bad speedo gears
the cluster will have to come out and the speedo head serviced. I would suggest you start by removing the drivers seat (only 2 bolts) which will give you a lot more room to work. Next, remove the steering column to gain access. Carefully tag or take pictures of all the wires as well. Check the archives for all the details. Don't be in a rush and take your time and it will work out fine. Pilot Dan
the cluster will have to come out and the speedo head serviced. I would suggest you start by removing the drivers seat (only 2 bolts) which will give you a lot more room to work. Next, remove the steering column to gain access. Carefully tag or take pictures of all the wires as well. Check the archives for all the details. Don't be in a rush and take your time and it will work out fine. Pilot Dan
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Le Mans Master
Joined: Feb 2001
Posts: 7,226
Likes: 399
From: Northern CA
Not that big a deal. Seriously. Worse case scenario is that you have to pull the cluster and send the speedo/odometer out to be rebuilt.
Certainly not the end of the world. Been there...done that. Couple of hours then it's off to FED EX.
You get it back, slap it in... and you're good to go. Relax.
Certainly not the end of the world. Been there...done that. Couple of hours then it's off to FED EX.
You get it back, slap it in... and you're good to go. Relax.
Melting Slicks
Joined: May 2004
Posts: 2,426
Likes: 285
From: West Barnstable MA
If you have to pull the cluster, I recommend and have used John Hinckley's 2 Cluster Articles. It's not a cake walk but can be done. Check the Sticky Section under Gauge Cluster for link.
Suggest you get a bunch of labels, and a "miner's light" before you start.
Good luck
Suggest you get a bunch of labels, and a "miner's light" before you start.
Good luck
Le Mans Master
Joined: Nov 2008
Posts: 5,691
Likes: 12
From: columbus oh
use a couple of phone books under a thick blanket on the driver side floor after you remove the drivers seat...very comfortable...good luck
