1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

if i had to have a broken speedo....

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Old Jan 7, 2010 | 01:50 PM
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From: fwb, fl
if i had to have a broken speedo....

i'm glad its this one



the haynes manual and the service manual are enough information to get into the dash and the speedo. but before i go tearing into it i thought i'd ask for opinions.

i know its getting signal, the faster i drive the faster it will spin, also, it spins backwards when driving in reverse. it seems like speedo problems are up in the air usually, and can be as easy as wd40, or needing replacement. i verified that the odometer is working correctly by driving a known distance in my other car, then in the 7.

December 30th was the first day in 5 years she's moved under her own power, so i'm just getting to find out all these little things that are wrong

any thoughts would be appreciated.

Nick
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Old Jan 7, 2010 | 01:54 PM
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That made my day. I've never seen a speedo do that before. Just replace it and you'll be good.
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Old Jan 7, 2010 | 02:06 PM
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there is a part of me that wants to keep it. and just get a cheapo gps or something for a speedometer, but i dont think that would fly for inspection.
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Old Jan 8, 2010 | 04:32 PM
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major lol.
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Old Jan 8, 2010 | 04:43 PM
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That made me laugh, seriously haha.
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Old Jan 8, 2010 | 07:16 PM
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that is AWESOME!
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Old Jan 9, 2010 | 03:19 AM
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Cluster pretty easy to remove, then swap out speedo from cluster with replacement. Whole clusters on ebay all the time for $25+.
Might be nice to get a later one with the 120MPH dial anyway!

Stu Aull
80GS (with replaced cluster)
Alaska
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Old Jan 9, 2010 | 07:25 AM
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Priceless! thanks for posting.
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Old Jan 9, 2010 | 09:05 AM
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that's the fastest car ever!!
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Old Jan 9, 2010 | 01:06 PM
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Originally Posted by codytheoutlaw
that's the fastest car ever!!
haha. turns out the previous owner wired the flux capacitor wrong. which explains why i cant travel through time.
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Old Jan 9, 2010 | 04:04 PM
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Please leave it like that. It's incredibly awesome
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Old Jan 10, 2010 | 02:44 AM
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Apparently your current speedo will sell pretty well on here. You could even swap it, troubleshoot the old unit, and tell everyone what happened to cause the failure. It could be the next sleepy-eye headlight mod!
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Old Jan 10, 2010 | 03:05 AM
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Deja Vu!

That's awsome! I'e only ever seen that once before, on my old 81 camaro. Never did figure out why it happened, just replaced it. Thanks for the memories. Those days I stayed so wasted we all just thought it was hilarious. (till my first speeding ticket)
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Old Jan 10, 2010 | 08:36 AM
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lmao thats excellent. crack the thing open an put a lil irregularity on the needle so it makes a whirring sound as u speed up

officer i couldnt have been speeding, at 50 mph the speedo plays a perfect Dflat and i was still only hearing like a B at best
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Old Jan 10, 2010 | 11:08 AM
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Originally Posted by TalkSick
lmao thats excellent. crack the thing open an put a lil irregularity on the needle so it makes a whirring sound as u speed up

officer i couldnt have been speeding, at 50 mph the speedo plays a perfect Dflat and i was still only hearing like a B at best
LMAO!! this made me spit coffee.
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Old Jan 10, 2010 | 12:10 PM
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NICE!

I passed my state inspection without a working speedometer.
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Old Jan 10, 2010 | 06:37 PM
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I actually disassembled my instrument cluster to clean it up and see what I could do with it, (mine is for the 13B GSL-SE but it still the same cable driven speedo style.) I can give you a few hints as to what it might be...

There is a spring that controls the return on your speedo as well as a sort of torque converter looking thing on the drive shaft of the speedo that has a tab, that tab forces the needle to stop at its predetermined swing (0-90moh, ect.) It seems that this section of your speedo could be missing/damaged/modified in someway.
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Old Jan 10, 2010 | 08:35 PM
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yea if you must replace it find an 83 speedo and you'll get the 120mph version.
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Old Jan 11, 2010 | 12:30 PM
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i just double checked the criteria for state inspection. looks i dont need a working speedo. so i get to keep it! i just sort of assumed it would be required

i will replace it eventually. its just farther down on my list.
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Old Jan 11, 2010 | 02:58 PM
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that's funny, i wish mine did that....
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Old Jan 11, 2010 | 04:58 PM
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i might have an extra 85mph speedo that i can send you for the price of shipping if you'd like..
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Old Jan 11, 2010 | 11:45 PM
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Originally Posted by mazdaverx713b
i might have an extra 85mph speedo that i can send you for the price of shipping if you'd like..
i may take you up on that. the car is on hold for now as i just got back to lubbock for school. the car is in dallas. ill PM you as soon as i figure out when im going home next.
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Old Jan 12, 2010 | 05:42 PM
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Originally Posted by TalkSick
lmao thats excellent. crack the thing open an put a lil irregularity on the needle so it makes a whirring sound as u speed up

officer i couldnt have been speeding, at 50 mph the speedo plays a perfect Dflat and i was still only hearing like a B at best
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Old Jan 13, 2010 | 11:41 PM
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CO Speedo

Outstanding, all you need to do is get a tac to count how fast the needle is turning to figure out how fast you're going. Just the other day I was cruising 140 mph going to work in a 55 mile road. Funny thing is that every body was doing the same so must be why no one was ticketed.

Anybody know a good speedo shop in the Colorado Springs area?

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Old Jan 14, 2010 | 10:28 AM
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That's entertaining.
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