Happy Thanksgiving and welcome to Packard Motor Car Information! If you're new here, please register for a free account.  
Login
Username:

Password:

Remember me



Lost Password?

Register now!
FAQ's
Main Menu
Recent Forum Topics
Who is Online
180 user(s) are online (108 user(s) are browsing Forums)

Members: 4
Guests: 176

dallas, BigKev, William Grosz, olduker, more...
Helping out...
PackardInfo is a free resource for Packard Owners that is completely supported by user donations. If you can help out, that would be great!

Donate via PayPal
Video Content
Visit PackardInfo.com YouTube Playlist

Donate via PayPal



« 1 (2) 3 4 »

Re: No more speedo
#11
Home away from home
Home away from home

Morgan
See User information
Thanks for the picture I seen the screw holes. I could see me taking off the dash, it is kina like the guy who needs a screwdriver so he turns his hammer into one, and then he needs a hammer to attach the handle.

Posted on: 2009/6/20 7:25
 Top  Print   
 


Re: No more speedo
#12
Home away from home
Home away from home

Morgan
See User information
The speedometer is off and I won't tell you exactly how long it took (in my head I kept hearing "Eric removed the entire dash in less than ten minutes"), so to make me feel better it took me the equivalent of .0000022 hours for Pluto to make one orbit of the sun.

The spring holding the needle is gone and twisted. The only thing I can think of is that as the needle rests against the back of the glass, perhaps it was too tight or needed some lubricant for it to twist that way. Time to look for a new speedo or one to cannibalize. Attached is a photo

Posted on: 2009/6/21 10:31
 Top  Print   
 


Re: No more speedo
#13
Forum Ambassador
Forum Ambassador

HH56
See User information
I'd say that one is beyond hope. Guess it's too late to tell what broke first to let it happen.

The spinning magnet inside and "pole pieces" outside coupled to the shaft normally do not touch the aluminum cup, & has a clearance of a few thousandths inside & out. An eddy current is generated so the cup tries to spin along also but is opposed by the spring.

To do the damage seen, something either broke and let the cup drop and get caught or some debris got into the gap and the two locked together. Haven't seen one with that damage before & would be curious now about Brandons with his needle also missing.

Don't think you can repair because the spring tension is what is calibrated to provide the accurate reading. Unless you have the specs of how much force or what speed it should read at how many RPMs and a way to precisely generate those revs and the precision tools to work with, either send to an instrument repair shop or find another unit.

Posted on: 2009/6/21 11:45
 Top  Print   
 


Re: No more speedo
#14
Home away from home
Home away from home

Morgan
See User information
HH It's a mess, didn't even bother to look for the needle. Maybe the shaking of the needle indicated some sort of drag until it heated up and closed the gap. The ticking sound was definitely the spinning cup. Note to others 120mph on the speedo means just that, take her any faster of this is what you get.

Posted on: 2009/6/21 15:23
 Top  Print   
 


Re: No more speedo
#15
Home away from home
Home away from home

Phil Randolph
See User information
I don't think my 38 would do over 120 even going over a cliff.

Posted on: 2009/6/21 15:30
 Top  Print   
 


Re: No more speedo
#16
Home away from home
Home away from home

Morgan
See User information
Actually I was going 30mph but it sounds better bending the needle on the end pin. Now I am looking for a replacement for the speedo. Last month passed up a full instrument cluster on Ebay, what could go wrong, just a waste of money, spend it on something she (the car) needs. Any suggestions as to sources?

Posted on: 2009/6/23 21:36
 Top  Print   
 


Re: No more speedo
#17
Home away from home
Home away from home

Morgan
See User information
Found a matching speedometer on ebay, they say the speedo works by moving it by hand but the odometer does not. My guess is that the lube on the worm screw has turned to cement or something else is wrong or they could not be turning it enough... Any suggestion on the lube to use, including the shaft. If the odometer is broken is there a way to remove the face and dial assembly (the screws are behind the face #$%^&**) to get at the retainers for the gears?

Posted on: 2009/6/26 8:26
 Top  Print   
 


Re: No more speedo
#18
Home away from home
Home away from home

Eric Boyle
See User information
Yes, I've done that several times on '56 speedos to build one that worked for my '56 Patty. All you have to do is carefully bend the tabs back that hold on the dial, and you're in. You can then take the entire guts out to clean and rework if needed. I had a good working speedo that had most of the odometer numbers literally falling off the odometer, and replaced the odometer after "rolling back" the odometer to make the mileage match the original speedo.

Posted on: 2009/6/26 13:37
 Top  Print   
 


Re: No more speedo
#19
Home away from home
Home away from home

Morgan
See User information
Misplaced my notes.. Reattaching the wiring on the back of the speedo I have two wires and an instrument voltage regulator. If I remember correctly the power wire from the instrument block goes to the right and the black wire from the voltage regulator attaches to the same point and the second wire going to the oil pressure to water temp to fuel attached to the left or.... does the voltage wire attach to the right and the black wire from the voltage regulator attach directly to the second wire going to the oil gauge etc.

Attach file:



jpg  (31.00 KB)
1057_4a4e376b90447.jpg 640X480 px

jpg  (48.79 KB)
1057_4a4e37849c234.jpg 640X480 px

Posted on: 2009/7/3 11:46
 Top  Print   
 


Re: No more speedo
#20
Forum Ambassador
Forum Ambassador

HH56
See User information
The round item in your first photo is an interference suppression capacitor for the radio. Instrument regulator is a rectangular box with 2 terminals. Look carefully & think one closest to middle has IGN stamped on metal just off to side of brown insulator material. The pink wire from fuses and the black wire from capacitor you show in your first photo goes there. The wire from gauges goes on the other terminal, then capacitor and regulator are screwed to back of speedo to complete the circuit..

Posted on: 2009/7/3 16:34
 Top  Print   
 




« 1 (2) 3 4 »





- The following Google Ad-Sense Advert helps fund the cost of providing this free resource -
- Logged in users will not see these. Please Join and Donate to help support the website -
Search
Recent Photos
Photo of the Day
Recent Registry
Upcoming Events
32nd Annual Florida Packard Club Meet
01/26/2025
46th Annual Texas Packard Meet
04/03/2025 - 04/06/2025
Packard Salon - Calling All Twelves
05/27/2025 - 05/29/2025
58th Annual National Meet
05/31/2025 - 06/06/2025
AACA Fall Meet (Hershey)
10/06/2025 - 10/10/2025
Website Comments or Questions?? Click Here Copyright 2006-2024, PackardInfo.com All Rights Reserved