Speedo Whako?
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Cargo Master
Joined: Nov 2005
Posts: 2,694
Likes: 45
From: La Ribera, Baja, Mexico
Speedo Whako?
I am looking for suggestions for an intermittent problem with my speedometer. It is the round model, found on F500's and up, and I have a new cable just installed. It worked fine for a day, then did not for 2 days, then it worked again for 20 miles or so. Yesterday, it did not work once again.. Anybody out there have a clue, ??
Thanks in advance, and any and all suggestions will be used.. I did crawl under and verify that it is connected on both ends, and seems to be tight..
Baja
Thanks in advance, and any and all suggestions will be used.. I did crawl under and verify that it is connected on both ends, and seems to be tight..
Baja
Lead Driver
Joined: Jul 2011
Posts: 8,679
Likes: 191
From: On the Edge of the Desert
I've had a similar problem on my motorcycle. Don't know what exactly was causing it but I heard a grinding noise like gears weren't meshing properly. I took it off and sprayed as much WD-40 in it as I could. It's worked ever since.
So maybe just needs lube?
So maybe just needs lube?
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Cargo Master
Joined: Nov 2005
Posts: 2,694
Likes: 45
From: La Ribera, Baja, Mexico
Thanks 351, I will try that, and may even look for some speedo cable lube... Did you spray into the cable, or the spedo?? I hesitate to lube the speedo as may gum it up, but Speedometers are not in experience, to mess with. Other than install and remove.. So far, there is no noise either working or not, at least not that my old ears can hear over the hum of the big tires... I did try putting the truck in neutral, shutting off the engine, but no other noise but normal.. I will take my wife for a ride soon, and try again, she has excellent hearing...
Again, thanks amgio
Baja
Again, thanks amgio
Baja
Lead Driver
Joined: Jul 2011
Posts: 8,679
Likes: 191
From: On the Edge of the Desert
I sprayed both. Even rode it around slowly with the speedometer off so I could spray the cable while it was rotating to work it in. I don't know if squirting the speedometer actually did anything or not, but it must have worked to some extent.
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Cargo Master
Joined: Nov 2005
Posts: 2,694
Likes: 45
From: La Ribera, Baja, Mexico
Now I am thinking that I will remove the cable entirely, lube the cable while it is out, and lube the cable housing too, with some light grease, or motor oil if I cannot find any speedo cable lube here in Baja... I have some dry graphite lube, for locks and stuff, that may do the trick...
One more thing that may affect speedometers and their working correctly, on my old truck, is that it is a 4x4, and the cable attaches to the tailshaft housing, on the back of the transfer case. It also has a 90 deg. angle drive (new), to avoid cable interference. I am wondering if the old (never rebuilt) speedometer gears INSIDE the Xfer, could be slipping somehow?? I will try to find and look at some schematics of the Xfer, and see what ticks in there...??
Baja
One more thing that may affect speedometers and their working correctly, on my old truck, is that it is a 4x4, and the cable attaches to the tailshaft housing, on the back of the transfer case. It also has a 90 deg. angle drive (new), to avoid cable interference. I am wondering if the old (never rebuilt) speedometer gears INSIDE the Xfer, could be slipping somehow?? I will try to find and look at some schematics of the Xfer, and see what ticks in there...??
Baja
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
When you take the cable assembly out look on both ends and see if the cable core has shifted too far up in to the speedo head or the driven gear. So it may be too far in to one of them and not quite far enough in to the other. Ford's cables had a stop on one of the ends. So the core wouldn't shift up or down. I don't know about aftermarket or custom made cables. Whatever you use to lube the cable core use something thin. I tried graphite grease once a long time ago. No workie. It wanted to wind up and release rather that spin true. If you can't find speedo cable lube (Harley has some) try 3 N 1 household oil, MMO, white lithium, etc.
Logistics Pro
Joined: Jan 2011
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From: Antelope Valley ,CA
Trending Topics
Logistics Pro
Joined: Jan 2011
Posts: 4,762
Likes: 54
From: Antelope Valley ,CA
i like spray white Lithium grease for inside of cable . sprays liquid then gels up , motorcycle places normally has it .
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Thread Starter
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Cargo Master
Joined: Nov 2005
Posts: 2,694
Likes: 45
From: La Ribera, Baja, Mexico
Thanks guys, took the truck out to have the wife listen, and the dang thing worked just fine, all the way to town and back... no noise... isn't that just right? The old rule is, "The closer to the garage, the better the car works" was that way with my horse too.. soon as I turned around, he'd hurry up to the barn...
I will try the white grease as I ave some, and I will check the cable and its length... I am not sure if the gears in the Spicer/Dana 24 transfer case are plastic or not.. but that could be the culprit if its not the cable...
Baja
I will try the white grease as I ave some, and I will check the cable and its length... I am not sure if the gears in the Spicer/Dana 24 transfer case are plastic or not.. but that could be the culprit if its not the cable...
Baja
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
I just ran across Ford's PTFE lubricant for driveshaft slip yoke splines is also recommended by them to lube speedo cables. It's still available from your local Ford Dealer.
Ford Motorcraft part number XG8A is a 1 lb. container.
Ford Motorcraft part number XG8 is a 3 oz. tube.
Ford Motorcraft part number XG8A is a 1 lb. container.
Ford Motorcraft part number XG8 is a 3 oz. tube.
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