| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,034 Posts1,055,542 Members48,425 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Nov 2008 Posts: 73 Shop Shark | | Shop Shark Joined: Nov 2008 Posts: 73 | I bought a rebuilt speedometer for my '42 1/2 ton from Jim Carter. Unfortunately a year had gone by before I actually installed it. My problem is the speedo needle does not sit on 0 it sits at about 20 mph. It seems to work ok under acceleration its just 20 mph over actual. I called Carter but their only answer is to swap and pay!!#$%#@ for another rebuilt as the one I have is out of warranty. Is there any way I can adjust this? I have a 235 with T5 and an S-10 reared if that matters. | | | | | Joined: Feb 2008 Posts: 1,122 'Bolter | | 'Bolter Joined: Feb 2008 Posts: 1,122 | My guess is the tranny change might also require a recalibration of the speedo, maybe even a change of the speedo gear in the tranny??? | | | | | Joined: Mar 2004 Posts: 6,214 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,214 | The needle resting at 20 mph has nothing to do with the transmission, that's a different issue all together. The needle can be removed and put back on at "0", it's a press fit. Put a very small prybar directly under the needle hub (do NOT pry on the actual needle or you will break it) and gently pry it off of the shaft, then gently push it back on so it rests at zero. Make sure you protect the gauge face when prying it off. Mike B  | | | | | Joined: Jan 2000 Posts: 2,074 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 2,074 | Takes a special puller to pull off the needle and re-install at zero. Maybe a clock repair shop? BTW found a great video on rebuilding speedo, was for a 55 Pontiac but the guts inside were just about same as my '46 pickup. Best of luck | | | | | Joined: Feb 2008 Posts: 1,122 'Bolter | | 'Bolter Joined: Feb 2008 Posts: 1,122 | I used an old dinner fork to gently, very ---gently ---pry the needle off, when I rebuilt Sparky's speedo. I read about that tip somewhere, but don't recall where. The speedo was on the workbench at the time, so that method may or may not work otherwise.
I apparently misunderstood the OP's description of the problem. It appears the needle not resting at zero from the rebuilder, must not have have recognized before shipping and installation?
Last edited by 46Sparky; 05/13/2017 1:20 AM.
| | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | The drum that the needle shaft is attached to has a pretty good stop for turning counter clock wise.
The shaft is tapered where the needle attaches.
So by lifting on the needle and turning counter clock ways most needles will lift right off.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Jan 2016 Posts: 246 Shop Shark | | Shop Shark Joined: Jan 2016 Posts: 246 | Use a clock hand puller which you will see listed on eBay for $1.30 with free shipping.
1953 chevy 1/2 ton with 3 speed 318 on floor and 1955 235 engine
| | | | | Joined: Nov 2011 Posts: 1,611 'Bolter | | 'Bolter Joined: Nov 2011 Posts: 1,611 | Use a clock hand puller which you will see listed on eBay for $1.30 with free shipping. How can they make and ship that for $1.30??? | | | | | Joined: Nov 2008 Posts: 73 Shop Shark | | Shop Shark Joined: Nov 2008 Posts: 73 | Thanks a bunch guys. I'll try it | | |
|
|
| |
