Interior Discussion about interior restoration, repairs, and modifications.

How to add mileage after a gauge replacement?

Thread Tools
 
Search this Thread
 
Old Jun 15, 2011 | 09:29 AM
  #1  
BlackenedBird's Avatar
Thread Starter
Supreme Member
iTrader: (5)
 
Joined: Mar 2011
Posts: 2,893
Likes: 4
From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
How to add mileage after a gauge replacement?

91 TA, analog gauges, 700R4 transmission

I recently swapped out my whole dash cluster panel because the Odometer had stopped working (easier than just doing the 1 gauge) but the new odometer shows less miles on it.

I don't want it to be showing wrong & am proud of my 230,000 miles, so I want to roll the new forward to read right.

If I understand it right, it is cable driven up to the dash, converted into an electronic signal, then the electronics spin the odometer. There was obviously not a cable connected to the back of the gauge.

Can I just pull the cable off the tranny, chuck it in my drill & spin it until the miles are added?

Last edited by BlackenedBird; Jun 15, 2011 at 09:35 AM.
Reply
Old Jun 15, 2011 | 11:19 AM
  #2  
Apeiron's Avatar
Moderator
 
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: How to add mileage after a gauge replacement?

It's all electronic, no cables anywhere.
Reply
Old Jun 15, 2011 | 11:46 AM
  #3  
BlackenedBird's Avatar
Thread Starter
Supreme Member
iTrader: (5)
 
Joined: Mar 2011
Posts: 2,893
Likes: 4
From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: How to add mileage after a gauge replacement?

Doesn't jive with what the FSM shows, but OK.

Basic question still stands. Adding mileage on an odometer after swapping gauges?
Reply
Old Jun 15, 2011 | 12:14 PM
  #4  
Ozz1967's Avatar
Supreme Member
20 Year Member
iTrader: (4)
 
Joined: Dec 2005
Posts: 4,795
Likes: 15
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: How to add mileage after a gauge replacement?

Were it a speedo run by a cable, you just take a piece of cable, plug it in to the end of a drill, then the end of the gauge and spin it for oh...hours until you get the desired mileage. No idea on an electronic speedo. Probably the same principle though, just take out the box that converts the signal to electronic pulses or so?
Reply
Old Jun 15, 2011 | 12:20 PM
  #5  
Apeiron's Avatar
Moderator
 
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: How to add mileage after a gauge replacement?

The problem with using a drill is that it takes 1000 turns of the cable (or the VSS gear) to register a mile. If your drill turns 2000 RPM, then you can put on 2 miles every minute. If your drill hasn't burned out after an hour of continuous operation, you'll only have added 120 miles.
Reply
Old Jun 15, 2011 | 12:32 PM
  #6  
BlackenedBird's Avatar
Thread Starter
Supreme Member
iTrader: (5)
 
Joined: Mar 2011
Posts: 2,893
Likes: 4
From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: How to add mileage after a gauge replacement?

Originally Posted by Apeiron
The problem with using a drill is that it takes 1000 turns of the cable (or the VSS gear) to register a mile. If your drill turns 2000 RPM, then you can put on 2 miles every minute. If your drill hasn't burned out after an hour of continuous operation, you'll only have added 120 miles.
OK

Any solution other than disassembling the Odometer & manually turning the #s?
Reply
Old Jun 15, 2011 | 12:51 PM
  #7  
Ozz1967's Avatar
Supreme Member
20 Year Member
iTrader: (4)
 
Joined: Dec 2005
Posts: 4,795
Likes: 15
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: How to add mileage after a gauge replacement?

I never said it was a "good" idea. lol
Reply
Old Jun 15, 2011 | 06:09 PM
  #8  
Stevolwevol's Avatar
Supreme Member
iTrader: (1)
 
Joined: Nov 2008
Posts: 1,697
Likes: 2
From: Michigan
Car: 86 IROC Z, 92 RS
Engine: 305 4bbl, 305 TBI
Re: How to add mileage after a gauge replacement?

Originally Posted by BlackenedBird
91 TA, analog gauges, 700R4 transmission

I recently swapped out my whole dash cluster panel because the Odometer had stopped working (easier than just doing the 1 gauge) but the new odometer shows less miles on it.

I don't want it to be showing wrong & am proud of my 230,000 miles, so I want to roll the new forward to read right.

If I understand it right, it is cable driven up to the dash, converted into an electronic signal, then the electronics spin the odometer. There was obviously not a cable connected to the back of the gauge.

Can I just pull the cable off the tranny, chuck it in my drill & spin it until the miles are added?
Why not leave it alone?
Reply
Old Jun 15, 2011 | 06:48 PM
  #9  
//<86TA>\\'s Avatar
Supreme Member
15 Year Member
iTrader: (15)
 
Joined: Aug 2006
Posts: 12,805
Likes: 107
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: How to add mileage after a gauge replacement?

your odo probably stopped working because the little motor that turns the gears died. if you take the gauges back out, you can disassemble the gauge and should be able to swap the counter to the new pod using the new motor.
Reply
Old Jun 15, 2011 | 06:53 PM
  #10  
BlackenedBird's Avatar
Thread Starter
Supreme Member
iTrader: (5)
 
Joined: Mar 2011
Posts: 2,893
Likes: 4
From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: How to add mileage after a gauge replacement?

Originally Posted by Stevolwevol
Why not leave it alone?
Just because I'm me & proud of my 230,000 miles.

Originally Posted by //<86TA>\\
your odo probably stopped working because the little motor that turns the gears died. if you take the gauges back out, you can disassemble the gauge and should be able to swap the counter to the new pod using the new motor.
Nope. The little plastic gears cracked & broke. Oh yeah, that was the Tripmeter, but still the reason I replaced the cluster & got a 145mph gauge out of doing it.

Next stop is white faces!
Reply
Old Jun 16, 2011 | 01:41 PM
  #11  
navy02ws6's Avatar
Supreme Member
20 Year Member
Liked
Loved
 
Joined: May 2005
Posts: 2,220
Likes: 68
From: Atlanta
Car: '02 T/A WS6, '91 T/A, '91 Camaro RS
Engine: LS1, LB9, L03
Transmission: T56, 700R4, 700R4
Axle/Gears: 4.10 10 bolt, 2.73 10 bolts
Re: How to add mileage after a gauge replacement?

Originally Posted by Stevolwevol
Why not leave it alone?

The first repair/inspection/emissions record on the Carfax after the new odometer will throw a big red flag on the car for 'inconsistent odometer reading'. Not exactly a selling point for most people.
Reply
Old Jun 16, 2011 | 02:42 PM
  #12  
BlackenedBird's Avatar
Thread Starter
Supreme Member
iTrader: (5)
 
Joined: Mar 2011
Posts: 2,893
Likes: 4
From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: How to add mileage after a gauge replacement?

Originally Posted by navy02ws6
The first repair/inspection/emissions record on the Carfax after the new odometer will throw a big red flag on the car for 'inconsistent odometer reading'. Not exactly a selling point for most people.
#1-No emissions here
#2-Carfax is such a joke anyways. I've seen reports with accidents that never happened as well as wrecks that did happen, covered by insurance, yet not show up.
#3-I replaced it the first time over 3 years ago & "dropped" 50,000 miles. Just replaced it again & dropped another 20,000 miles. So any Carfax would already show a sudden drop in miles. Even the annual State Inspection already shows that.

Despite doing my state inspection yearly? No red flags have come up & is easily explained. Besides, I have no plans to sell it & I don't care so it won't matter anyways. And I don't want to REMOVE miles, getting it to show lower than it really is. I want to ADD miles for it to show more accurately.
Reply
Old Jul 19, 2023 | 05:23 PM
  #13  
kema27's Avatar
Junior Member
 
Joined: Jul 2023
Posts: 1
Likes: 0
Re: How to add mileage after a gauge replacement?

With a drill it will be a headache get a square house fan take the protective plastic mesh off put something that will fit in you speedometer to make it turn I used the cap leg of a sharpie marker I super glued it standing up right in the middle of the fan then I placed the speedometer in top of the plastic mesh and inserted the sharpie cap leg into the speedometer I ducked taped it on the sides to secure shaking then I laid the fan facing up with a breathable pedestal (some pieces or house brick) and turned the fan on it makes my speedometer go about 30 mph in one whole day of letting it run at home it has put about 450 miles I need 21k miles so I got a ways to go




Reply
Old Jul 19, 2023 | 06:32 PM
  #14  
Roorancher's Avatar
Member
Liked
Loved
Community Favorite
 
Joined: Dec 2021
Posts: 354
Likes: 142
From: central Texas
Car: 91 TA Vert WS6-94 TA Vert
Engine: 5.0/5.7 LT1
Transmission: 700R4
Axle/Gears: 2.73-3.42
Re: How to add mileage after a gauge replacement?

If the odometer works and the mileage is just off, you can remove the odometer from the gauge cluster, and with 2 jewelers flat tip screwdrivers pry up on the little retaining bar on the back side of the odometer, and with the other screwdriver gently rotate the digits.
i did the exact same thing on my 91 TA to make a mileage correction the PO didnt do after changing the cluster.
Reply
Old Jul 20, 2023 | 05:33 PM
  #15  
NoEmissions84TA's Avatar
Supreme Member
5 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Feb 2017
Posts: 4,174
Likes: 569
From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: How to add mileage after a gauge replacement?

Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Charged350
Interior
4
Apr 9, 2009 10:53 AM
zmasta101
Electronics
3
May 29, 2008 03:25 PM
razormedic911
Interior
4
Mar 6, 2007 05:39 AM
anjel
Electronics
4
Jan 11, 2004 08:18 PM
TomP
V6
2
Jan 15, 2002 09:42 AM




All times are GMT -5. The time now is 11:33 PM.