by Guest Fri Sep 05, 2008 6:15 pmI've got a 69 A108 with a "jumpy" speedo . I have tried White Lithium grease which normally works. Any ideas??? Thanks
Irratic speedo
Guest- Guest
The speedo head itself could be bad. Did you try removing the cable itself from the sheathing and cleaning it?
terencejiminy- Number of posts : 62
Location : Warren, Michigan
Registration date : 2008-09-08
gutter1 wrote:I've got a 69 A108 with a "jumpy" speedo . I have tried White Lithium grease which normally works. Any ideas??? Thanks
An issue with these spinning magnet and cup speedos has been when that U shaped thingy's brass bushing wears out and the thingy actually touches the cup attached to the needle. Makes it jump a lot the slower you are going.
When this happens the head must be replaced. This is a long, too many times, overlooked issue. Lubing the mechanism with Aero-Croil , WD-40 or Blaster keeps this smooth and avoids wearing the brass bushing out. You'll notice a small brass freeze plug looking cap near where the cable attaches. A little hole put in there gives you access to that shaft for lubing.
I'm sure there are still a few out in the salvage yards too. Look for 60's D-100/200/300s. Early 70's and older Motorhomes that had the Dash shifter and A - D series instrument cluster. Easy to recognize since they had the White Dodge Commander steering wheel.
If you find one pretty much intact the turn signal switch is the same too - if its Cancel Cam hasnt broken yet.
Terry
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