Spinning speedo back DOES remove miles - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hobby67stepside · 03-07-2005, 04:33 PM

Some of the replies in "Turning odometer back to zero" thread had me going for a bit. I just came from my shop and, once again, after spinning the speedo back, it does remove miles. So, I'm back to my previous question - does anyone know if this will damage the speedometer? Watching the speedo neeldle bouncing bothers me a little. If I had to remove 10,000's of miles I would follow Lamar's instructions. Since its only a few hundred.......

junkyardjohn · 03-07-2005, 07:25 PM

YEP -- I CAN REMEMBER WHEN I WAS JUST A KID, MY UNCLE COMING OVER IN A BRAND NEW 65 IMPALA & TAKING ME FOR A RIDE AROUND THE BLOCK BACKWARDS. I WAS AMAZED THAT THE ODOMETER WORKED BACKWARDS, REMOVING SHOWN MILES.
ALL YOU HAVE TO DO NOW IS DRIVE AROUND THE BLOCK BACKWARDS, & BE CAREFULL OF NECK CRAMPS.

JOHN

72MARIO · 03-07-2005, 09:02 PM

If you spin it too quick you can break it.

69 longhorn · 03-07-2005, 09:20 PM

Yup, 30yrs ago, when we borrowed Dads pickup on fri nite.......we had to idle it on jack stands in reverse all day sat & sun to get the miles off! the old booger still busted us, cause he new exactly how much gas he left in it

69L

*screamin_c102* · 03-07-2005, 09:26 PM

I personally donot know the answer , but I am curious. May I make a suggestion? If you can't get a satisfactory answer here, then I would go to the junkyard and shell ot $10.00 for a speedo to test it out on. That way you can be certain not to ruin the unit you already have.

hobby67stepside · 03-07-2005, 10:02 PM

It is kind of slow taking the miles off with a drill. I timed it and its at the rate of 90 mph in reverse, but the miles still go away slowly. I probably will just take it apart and do the other suggested method from that other thread. I have a couple so if I screw one up I do have a spare.

rmrtndl · 03-07-2005, 10:14 PM

I had a '76 Mercury Comet when I was a kid. I rolled the odometer twice in one day. After rolling it from 999,999.9 to 000,000.0; I stopped, backed up until I hit 999,999.9 and then went forward again. Thirteen miles later, I totalled the car.

Needless to say, but I will anyway, the odometer on it went backwards. That was at a fairly low rate of speed though.

Jason71k10 · 03-07-2005, 10:54 PM

....I always thought that was illegal??

avejoe · 03-07-2005, 11:51 PM

or drive in forward gear and stop at 99,999

hobby67stepside · 03-08-2005, 01:15 AM

It's not illegal in Iowa after a cerain number of years. I'm not sure what that is, but its far less than 35 or more.

Big Blue · 03-08-2005, 02:15 AM

This Is Strange, I just messed up two speedo units trying to get them back to 00000.1. My mileage is exempt so i feel i can take it back if i choose. Since I plan on rebuilding my 78-81 Blazer/Truck.

Now i need to get a new speedo unit for my truck.

John

C-20s · 03-08-2005, 02:30 AM

i rolled mine back the other day without thinking on my 66 chevy. hope it still works. what was the other method you were talking about? mine is exempt and does not have the original motor. so in the state of texas i get to start fresh whenever i want to.

Big Blue · 03-08-2005, 08:15 PM

So Now that some of us want to change back time how is it done without breaking it?
Any body done this with pics would be nice.I do it but i just wreck both of mine.
John

03-07-2005, 04:33 PM	#1
hobby67stepside Registered User Join Date: Dec 2001 Location: NW Iowa Posts: 952	Spinning speedo back DOES remove miles Some of the replies in "Turning odometer back to zero" thread had me going for a bit. I just came from my shop and, once again, after spinning the speedo back, it does remove miles. So, I'm back to my previous question - does anyone know if this will damage the speedometer? Watching the speedo neeldle bouncing bothers me a little. If I had to remove 10,000's of miles I would follow Lamar's instructions. Since its only a few hundred.......

03-07-2005, 07:25 PM	#2
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,425	YEP -- I CAN REMEMBER WHEN I WAS JUST A KID, MY UNCLE COMING OVER IN A BRAND NEW 65 IMPALA & TAKING ME FOR A RIDE AROUND THE BLOCK BACKWARDS. I WAS AMAZED THAT THE ODOMETER WORKED BACKWARDS, REMOVING SHOWN MILES. ALL YOU HAVE TO DO NOW IS DRIVE AROUND THE BLOCK BACKWARDS, & BE CAREFULL OF NECK CRAMPS. JOHN __________________ junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES// LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST

03-07-2005, 09:02 PM	#3
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,051	If you spin it too quick you can break it. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

03-07-2005, 09:20 PM	#4
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	Yup, 30yrs ago, when we borrowed Dads pickup on fri nite.......we had to idle it on jack stands in reverse all day sat & sun to get the miles off! the old booger still busted us, cause he new exactly how much gas he left in it 69L __________________ http://community.webshots.com/user/hotrodhorn

03-07-2005, 10:14 PM	#7
rmrtndl Hey ya'll, Watch this! Join Date: Jan 2005 Location: Huntsville, AL Posts: 117	I had a '76 Mercury Comet when I was a kid. I rolled the odometer twice in one day. After rolling it from 999,999.9 to 000,000.0; I stopped, backed up until I hit 999,999.9 and then went forward again. Thirteen miles later, I totalled the car. Needless to say, but I will anyway, the odometer on it went backwards. That was at a fairly low rate of speed though. __________________ Rick M. 72 GMC SWB Fleetside 25 Chevrolet Superior Series Truck 95 Mazda Miata 06 Dodge Charger RT http://ram92.ods.org/blog.html

03-07-2005, 09:26 PM	#5
screamin_c102 Account Suspended Join Date: Feb 2005 Location: Yoncalla Oregon Posts: 775	I personally donot know the answer , but I am curious. May I make a suggestion? If you can't get a satisfactory answer here, then I would go to the junkyard and shell ot $10.00 for a speedo to test it out on. That way you can be certain not to ruin the unit you already have.

03-07-2005, 10:02 PM	#6
hobby67stepside Registered User Join Date: Dec 2001 Location: NW Iowa Posts: 952	It is kind of slow taking the miles off with a drill. I timed it and its at the rate of 90 mph in reverse, but the miles still go away slowly. I probably will just take it apart and do the other suggested method from that other thread. I have a couple so if I screw one up I do have a spare.

03-07-2005, 10:54 PM	#8
Jason71k10 ready for reassembly Join Date: Jun 2002 Location: Barrie ONT, Canada Posts: 413	....I always thought that was illegal?? __________________ stock 71 4x4 2003 Jeep Liberty, rocky mountain edition I'm obsessed, and wouldn't have it any other way!

03-07-2005, 11:51 PM	#9
avejoe Custer had a plan too. Join Date: Dec 2003 Location: No. California Posts: 344	or drive in forward gear and stop at 99,999 __________________ 72 K15 GMC (aka Big White) Performance Rockers, Cab Corners, and Floors Fossil Fuel Glutton Neighborhood Nuisance 98 BMW 540i for Speed (Sold ) 05 Subaru Outback for mileage

03-08-2005, 01:15 AM	#10
hobby67stepside Registered User Join Date: Dec 2001 Location: NW Iowa Posts: 952	It's not illegal in Iowa after a cerain number of years. I'm not sure what that is, but its far less than 35 or more.

03-08-2005, 02:15 AM	#11
Big Blue Registered User Join Date: Feb 2005 Location: Northeast--Bethlehem, Pennslyvania Posts: 642	This Is Strange, I just messed up two speedo units trying to get them back to 00000.1. My mileage is exempt so i feel i can take it back if i choose. Since I plan on rebuilding my 78-81 Blazer/Truck. Now i need to get a new speedo unit for my truck. John __________________ Big Blue ( John ) 79 Chevy Pick up.....My Dailey STILL Working on a frame up: 1987 Truck body on a 78 Blazer frame. Need cab blasted to start project. Got the cab BLASTED, Now Prep and Paint. Started to lay SOME BONDO and primer. Done, Ordering paint. Got paint, Stuff painted,Cab,Fenders, Hood more later. 9/7/2015 Got the clear coat on,now time to take one off. Started to put things back (What a nightmare) like the heating and AC stuff,inside wire harness, outside AC unit and booster, still more. May 2016, still working on the inside. Got duck work in,heating and AC. Radio (stock) in dash with after market in console later, Speaker are hooked up, Steering column is in. Getting ready to drop the cab onto the frame, Working on engine now since I have the room. Well here it is 2018, got the engine in and it runs, now I need to get the exhaust system in so I can adjust the lifters, to loud right now. Got the exhaust on now I am waiting for the break parts to come in. Last edited by Big Blue; 03-08-2005 at 02:19 AM.

03-08-2005, 02:30 AM	#12
C-20s Registered User Join Date: Jul 2004 Location: Clute, tx Posts: 14	i rolled mine back the other day without thinking on my 66 chevy. hope it still works. what was the other method you were talking about? mine is exempt and does not have the original motor. so in the state of texas i get to start fresh whenever i want to.

03-08-2005, 08:15 PM	#13
Big Blue Registered User Join Date: Feb 2005 Location: Northeast--Bethlehem, Pennslyvania Posts: 642	So Now that some of us want to change back time how is it done without breaking it? Any body done this with pics would be nice.I do it but i just wreck both of mine. John __________________ Big Blue ( John ) 79 Chevy Pick up.....My Dailey STILL Working on a frame up: 1987 Truck body on a 78 Blazer frame. Need cab blasted to start project. Got the cab BLASTED, Now Prep and Paint. Started to lay SOME BONDO and primer. Done, Ordering paint. Got paint, Stuff painted,Cab,Fenders, Hood more later. 9/7/2015 Got the clear coat on,now time to take one off. Started to put things back (What a nightmare) like the heating and AC stuff,inside wire harness, outside AC unit and booster, still more. May 2016, still working on the inside. Got duck work in,heating and AC. Radio (stock) in dash with after market in console later, Speaker are hooked up, Steering column is in. Getting ready to drop the cab onto the frame, Working on engine now since I have the room. Well here it is 2018, got the engine in and it runs, now I need to get the exhaust system in so I can adjust the lifters, to loud right now. Got the exhaust on now I am waiting for the break parts to come in.

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