65 speedometer
06-04-2011, 07:47 PM
#2
2nd Gear Member
Join Date: Oct 2009
Location: Florida
Posts: 429
I'd guess one of the gears (driven or driver gear) that turn the cable has lost a tooth. You can pull out the cable from the trans and examine both gears easily and determine if they are in need of replacement.
06-04-2011, 08:53 PM
#3
6th Gear Member
Join Date: Jan 2007
Location: AR
Posts: 5,469
I think that you should grease the spedo cable really good before trying anything more drastic.
A dry cable will catch in the sheath, wind up a little and then pop loose and unwind. This cycle can happen repeatedly and relatively quickly causing the speedometer to jump around.
When moving at faster speeds, the cable is less likely to catch, therefore the problem is not noticeable at higher speeds.
Is this your problem? Maybe, but I think the chances are good that this is your issue.
If so, eventually this will cause your cable to break from fatigue.
A dry cable will catch in the sheath, wind up a little and then pop loose and unwind. This cycle can happen repeatedly and relatively quickly causing the speedometer to jump around.
When moving at faster speeds, the cable is less likely to catch, therefore the problem is not noticeable at higher speeds.
Is this your problem? Maybe, but I think the chances are good that this is your issue.
If so, eventually this will cause your cable to break from fatigue.
06-05-2011, 06:00 PM
#4
2nd Gear Member
Thread Starter
Join Date: Feb 2011
Location: Reno,NV
Posts: 319
I think that you should grease the spedo cable really good before trying anything more drastic.
A dry cable will catch in the sheath, wind up a little and then pop loose and unwind. This cycle can happen repeatedly and relatively quickly causing the speedometer to jump around.
When moving at faster speeds, the cable is less likely to catch, therefore the problem is not noticeable at higher speeds.
Is this your problem? Maybe, but I think the chances are good that this is your issue.
If so, eventually this will cause your cable to break from fatigue.
A dry cable will catch in the sheath, wind up a little and then pop loose and unwind. This cycle can happen repeatedly and relatively quickly causing the speedometer to jump around.
When moving at faster speeds, the cable is less likely to catch, therefore the problem is not noticeable at higher speeds.
Is this your problem? Maybe, but I think the chances are good that this is your issue.
If so, eventually this will cause your cable to break from fatigue.
06-06-2011, 09:56 AM
#5
6th Gear Member
Join Date: Jan 2007
Location: AR
Posts: 5,469
I have used white lithium grease in the past, but I am sure there are products more suitable for the job.
The cable will only come out of the sheath one way, cant remember which for sure on a Ford, but I think you will need to disconnect the sheath from the spedo, and just pull the cable out of the sheath, clean and lubricate it.
You might want to disconnect both ends of the sheath and spray some carb cleaner down the sheath to clean out the old solidified oil while you still have the cable out.
Be generous with the lubricant
.
06-06-2011, 09:48 PM
#6
2nd Gear Member
Thread Starter
Join Date: Feb 2011
Location: Reno,NV
Posts: 319
I have used white lithium grease in the past, but I am sure there are products more suitable for the job.
The cable will only come out of the sheath one way, cant remember which for sure on a Ford, but I think you will need to disconnect the sheath from the spedo, and just pull the cable out of the sheath, clean and lubricate it.
You might want to disconnect both ends of the sheath and spray some carb cleaner down the sheath to clean out the old solidified oil while you still have the cable out.
Be generous with the lubricant
.
The cable will only come out of the sheath one way, cant remember which for sure on a Ford, but I think you will need to disconnect the sheath from the spedo, and just pull the cable out of the sheath, clean and lubricate it.
You might want to disconnect both ends of the sheath and spray some carb cleaner down the sheath to clean out the old solidified oil while you still have the cable out.
Be generous with the lubricant
.
06-06-2011, 11:45 PM
#9
5th Gear Member
Join Date: Dec 2008
Location: Texas
Posts: 4,462
The lithium grease did work for a little while and the operation was smooth, until it go all over the back of the speedo mechanism.
The lubricant looks like this. It can be messy, so have some rags or paper towels handy.
The lubricant looks like this. It can be messy, so have some rags or paper towels handy.