Posted By |
Discussion Topic:
Speedometer Issue
-- page:
1
2
|
|
Dream38v8 |
07-07-2020 @ 6:24 AM
|
|
|
New Member
Posts: 177
Joined: May 2016
|
Three issues relating to my 1938 speedometer: 1) The needle fell off I believe as a result of lack of speedometer cable lubricant (irredicate needle movement at low speeds) - what is the best procedure to refix the needle? 2) Per this forum "liquid graphite" is the best solution to lubricate the cable - do I need to remove the cable to apply the lubricant or can I add to the cable once I remove it from the back of the speedometer? 3) I can not locate "liquid graphite" at any auto supply store
Ray
|
nelsb01 |
07-07-2020 @ 8:04 AM
|
|
|
Senior
Posts: 982
Joined: Oct 2009
|
Hi Ray; You will have to remover the speedometer assembly from the dash to be able to re-attach the needle. There should be 3 or 4 small nuts that hold the speedometer to the dash. I have found that a long socket works best. Then, I believe the circular rim is held on by little delicate tabs. Be slow when bending them. There should be a cork gasket between the glass and rim. A small needle nose pliers will be needed to set the needle on the post. I have been able to just add liquid graphite down the speedometer cable housing and it works for me. Others will probably advise that you remove and clean the cable, which might not be a bad idea if you dont know the history of your vehicle. I dont remember where I purchased my liquid graphite. If concerned try calling around before traveling around. Hope this helps.
|
Dream38v8 |
07-07-2020 @ 9:12 AM
|
|
|
New Member
Posts: 177
Joined: May 2016
|
Thanks for your reply. Do I just press the needle on gently when using the needle nose pliers? I have called all the auto part stores in the area and no one has a speedometer lub. Online I've located Dorman graphite oil that I can order.
Ray
|
nelsb01 |
07-07-2020 @ 12:21 PM
|
|
|
Senior
Posts: 982
Joined: Oct 2009
|
Yes---very gently. It should slide on, but with care. Here is a picture of what I have.
|
Dream38v8 |
07-20-2020 @ 1:55 PM
|
|
|
New Member
Posts: 177
Joined: May 2016
|
I decided to work on the speedometer during one of the hottest days this summer. Got the speedometer out and disconnected the cable. The attached picture is the only liquid graphite I could locate. Thanks NAPA. After I spread the lubricant I let the cable set for 30 minutes. While waiting I reattached the needle. Once everything was back together I went for a test drive. The speedometer is working, but the needle is still bouncing. The bounce is probably 10% from the previous bounce before the needle fell off. At this time I am happy. Maybe this fall I will disconnect / remove the cable and clean and relub . Ray
Ray
|
TomO |
07-21-2020 @ 7:12 AM
|
|
|
Senior
Posts: 7250
Joined: Oct 2009
|
I have always advocated using graphite lube on the speedometer cable, but I used Sil-Glyde lube on the power seat tracks of my Lincoln and have been impressed with how easy the seat moves and that the grease does not seem to collect dirt like the white lithium grease. I would think that it would work very well as a cable lube. You don't have to remove the speedometer to lube the cable, just disconnect it at the speedo head, remove the cable, wipe it down with mineral spirits, wipe on a thin coat of the lubricants and re-insert the cable. Most of the early speedometer heads have a small metal cap on the top. Under that cap is a felt wick that should be lubricated with a thin oil like 3 in One. If this area becomes dry, it could also cause a bouncing needle.
Tom
|
trjford8 |
07-21-2020 @ 7:48 AM
|
|
|
Senior
Posts: 4214
Joined: Oct 2009
|
X2 for Syl-Glyde. Works good on window regulators also.
|
Dream38v8 |
07-21-2020 @ 9:32 AM
|
|
|
New Member
Posts: 177
Joined: May 2016
|
Thanks Tom. I had to remove the speedo head as the needle had fallen off. I did not notice a metal cap on the top of the speedo head. My Ford is a '38 Deluxe Fordor. Ray
Ray
|
40cpe |
07-21-2020 @ 9:42 AM
|
|
|
Member
Posts: 472
Joined: Jan 2010
|
The cap on the speedo is on top just forward of where the cable attaches. It is a small (1/8"+) brass recessed plug. Use a sharp instrument to get under the edge of the lip and lift up.
|
horsepower |
07-22-2020 @ 2:48 AM
|
|
|
Member
Posts: 2
Joined: Jul 2020
|
You can try to restore your dashboard and it should fix the problem. If you are located in USA, check woodensteeringwheels.com It should take no longen than 3 weeks
|