Speedo Face Replacement
Thread Starter
Melting Slicks
Joined: Feb 2004
Posts: 2,039
Likes: 105
From: State of Confusion!!!
2018 C2 of Year Winner
Speedo Face Replacement
I purchased a green face speedometer for my '71. 'Bubba installed a white face at some point. (The only white face in the car??)
I am not sure if the replacement gauge works, so my question is, "Can I just replace the face?? How do I get the needle off without destroying it??"
When I spin the weight in the back of the replacement gauge, the needle does rise, but I am not sure if it will be accurate. There was no assurance of the thing working, I just wanted the green #'s.
Also, any info on the best way to approach this would be appreciated.
I am not sure if the replacement gauge works, so my question is, "Can I just replace the face?? How do I get the needle off without destroying it??"
When I spin the weight in the back of the replacement gauge, the needle does rise, but I am not sure if it will be accurate. There was no assurance of the thing working, I just wanted the green #'s.
Also, any info on the best way to approach this would be appreciated.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
You can try both heads out with a low speed electric drill. Pull the cable out of the tranny and hook a low speed [or variable speed] drill to the cable. Just turn it on a lowest setting (make sure you are dirving the cable in the correct direction) and have someone look in the cockpit for the displayed speed. Then drive the "new" green-faced unit with the same drill at the same speed. You should show about the same mph. If it does, then you can raise the drill speed to test the new head throughout its whole speed range.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,850
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
You can find detailed instructions on how to remove the needle at this link.
http://willcoxcorvette.com/repairand...lp.php?hID=145
http://willcoxcorvette.com/repairand...lp.php?hID=145
Thread Starter
Melting Slicks
Joined: Feb 2004
Posts: 2,039
Likes: 105
From: State of Confusion!!!
2018 C2 of Year Winner
Thanx, both replies are very helpful. Which direction does the cable spin??
Sounds easiest if I just replace the face and keep the current gauge in the car.
Which direction does the cable spin?? Sounds easiest if I just replace the face and keep the current gauge in the car.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
Darn, I'm gettin' old. I believe that the cable is turned CCW to get positive reading on the speedo; but...just to be sure....once you've pulled the cable off the tranny, just spin the cable with your fingers [each way] and have your partner watch the speedo. Then just apply the correct direction to drive your drill.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
Followup.....
Yes, I think it would be easiest to change out the whole head, if your green-letter unit works OK. Don't forget to record the mileage from the old head and the starting mileage on the "new" one. Put that data in your records {along with the speedo replacement info} so that you can supply it to the DMV and/or future buyer, if they should need it.
Yes, I think it would be easiest to change out the whole head, if your green-letter unit works OK. Don't forget to record the mileage from the old head and the starting mileage on the "new" one. Put that data in your records {along with the speedo replacement info} so that you can supply it to the DMV and/or future buyer, if they should need it.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,850
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Just swap out the odometer from the old unit to the new one.
It’s real easy and involves taking one clip loose, pulling the odometer to the side and out of the unit. Then replace the new unit with the old odometer from the unit in the car.
As a rule of thumb we always write the odometer reading on the back of the face in pencil. Just in case something happens we will always have it.
Willcox Inc.
It’s real easy and involves taking one clip loose, pulling the odometer to the side and out of the unit. Then replace the new unit with the old odometer from the unit in the car.
As a rule of thumb we always write the odometer reading on the back of the face in pencil. Just in case something happens we will always have it.
Willcox Inc.
1967, accessories, c3, c6, corect, corners, corvette, direction, face, reading, replacement, speedo, speedodomiter, speedometer, turn, white
