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(1) 2 »

Speedo problems
#1
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Robert Freeman
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I guess I have the 'shitus touch' because I fix one thing and another goes wrong, almost immediately. I fixed the pushbutton hunting issue and took the 56 Exec out for a drive. A horrible whining sound came from the speedo along with the needle going from 0 - 120 and bouncing everywhere in between. I stopped the car and checked behind the speedo for a loose cable connection, it was tight. I continued on and the noise was intermittent. I was far from home and headed back when the noise returned with a vengeance and the needle just came off and fell down out of sight.

I guess I should've disconnected the cable at the first sign of trouble, but I didn't and now I have no speedo. Can my speedo be fixed and do I need to pull my dash to get it out?

Thanks again for your wisdom and help,

Bob

Posted on: 2010/11/29 11:03
Bob

IF EVERYTHING IS COMING YOUR WAY ...
- - - - - - - - - - - - - - - - - - - - - - - -
YOU'RE IN THE WRONG LANE!

'56 Executive Touring Sedan
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Re: Speedo problems
#2
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55clipper
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You will have to remove the speedometer from the car. I found the best way to do this is to remove the glove compartment and work from there instead of under the dash. You are going to skin your knuckles and have to use small screw drivers to remove the speedo assembly, dash voltage regulator and various wires. Keep track of what you remove or get a copy of the wiring diagram. The regulator is a pain in the a.., and you may want to relocate it in a more convenient location under the dash or firewall. Good luck.

Posted on: 2010/11/29 11:32
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Re: Speedo problems
#3
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HH56
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You do not have to pull the dash. The speedo is held onto the cluster by 5 screws and will come out by itself with some twisting to let the dial clear the opening. Several have had the problem and unless you are really lucky, find the needle and are able to replace it, I believe the end result is speedo usually winds up replaced. The shaft shifts or breaks allowing the cup assy to fall onto the spinning magnet causing internal damage. You can look in Hemmings. I believe there is an instrument repair shop or two that works on King-Seely and possibly can repair it.

Here is one incident and a picture of the cluster.packardinfo.com/xoops/html/modules/newbb ... ic.php?post_id=31077#forumpost31077 Brandon had a similar problem in his 56 as did another one or two posters.

Posted on: 2010/11/29 11:34
Howard
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Re: Speedo problems
#4
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BigKev
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The root cause of failure is usually lack of lubrication of the speedo. After 50 years they are usually bone dry and need some attention.

"When in doubt, lubricate." - Jamie Hyneman (Mythbusters)

Posted on: 2010/11/29 12:17
-BigKev


1954 Packard Clipper Deluxe Touring Sedan -> Registry | Project Blog

1937 Packard 115-C Convertible Coupe -> Registry | Project Blog
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Re: Speedo problems
#5
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Robert Freeman
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Quote:

BigKev wrote:
The root cause of failure is usually lack of lubrication of the speedo. After 50 years they are usually bone dry and need some attention.

"When in doubt, lubricate." - Jamie Hyneman (Mythbusters)


Wise words, indeed. I have heard and will look for other items that may need it. I hopw that it will prevent some other problems. I'll also keep you posted on my speedo replacement or repair.


Thanks again for the help (this means so much to me, I hope that I can help others).

Bob

Posted on: 2010/11/29 14:06
Bob

IF EVERYTHING IS COMING YOUR WAY ...
- - - - - - - - - - - - - - - - - - - - - - - -
YOU'RE IN THE WRONG LANE!

'56 Executive Touring Sedan
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Re: Speedo problems
#6
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fred kanter
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The "whipping" of the speedometer needle is caused by the temporary "winding up" of the speedo cable, then momentary release. It can be caused by lack of lurbrication in either the speedo or the cable, impossible to tell.

All Packard speedos form 1935 up and probably earlier have a tiny lubrication "cup" just above wherethe cable attaches.
It can be lubricated without removing hte speedometer, either with a 3 in 1 type can with a needle-like spout or an eye dropper.

Although you cannot see the oil cup in the '56 or even feel it, it is just below the screw that is just above the cable attachin point. A little extra oil slobbered there won't hurt anything.

Lube the cable, do NOT use any grease as many of them get thick when cold and will cause the same or worse problem. Unscrew the cable at the speedo, lower it beneath the dash and withdraw the caable core being careful to keep it from touching the seats or upholstery, it's ususlly greasy black.

Clean the core with solvent, then take some graphite in a plastic "squeeze tube" and put some into the speedo sheath,
then replace the core and reattach the cable

"Do it once and do it right" Good for 50,000 more miles, guaranteed.

Fred Kanter
Kanter Auto Products
Boonton NJ

Posted on: 2010/11/29 15:53
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Re: Speedo problems
#7
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Robert Freeman
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It' funny that you mention the graphite powder as I had purchased that very thing a week ago. I was warned about the grease hardening issue so I bought the powder. Only I failed to do it in time before the needle flew off of it's shaft

Bob

Posted on: 2010/11/29 17:36
Bob

IF EVERYTHING IS COMING YOUR WAY ...
- - - - - - - - - - - - - - - - - - - - - - - -
YOU'RE IN THE WRONG LANE!

'56 Executive Touring Sedan
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Re: Speedo problems
#8
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Owen_Dyneto
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At one time I used white grease (Lubriplate) on the cable, but the last few times I've done one I've used 85W gear oil with fine results thus far. Certainly Fred's admonition against using grease is well-taken.

Posted on: 2010/11/29 18:27
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Re: Speedo problems
#9
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Joel Ray
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My speedometer failed at the national Packard meet in South Bend a few years ago. The speedometer is not easy to get at and as I have aged I had a difficult time contorting my body to get at it. Finally a simple solution presented itself, I removed the front seat. That is about a 15 minute task. I was able to lay lenghtwise and have a friend be a "gopher" so I did not have to get out for the inevitable next tool that I needed. My speedometer was rebuilt with all nos parts by a great shop in Pontiac Michigan called Scott Speedometer that has been in business 50 years.

Posted on: 2010/11/29 20:41
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Re: Speedo problems
#10
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Charles
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I know this topic is for a speedo from a 56, but can someone point out the oil hole that is being discussed? Attached pic is a '51 instrument cluster. I checked mine out, but I do not see an oil hole. May be helpful for others in the future (as well as myself) if we point out exactly where to put the oil.

Attach file:



jpg  (111.77 KB)
508_4cf46f8d73991.jpg 1280X960 px

Posted on: 2010/11/29 22:29
[url=h
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