![[Datsun 1200 encyclopedia]](/wiki/upload/wiki.png)
A flexible-shaft cable attaches the Speedometer to the driven gear at the rear housing of the transmission.
Contents |
Speedometer End
The cable screws onto the back of the speedometer. You can reach up under the dash to fasten it
Transmission End
The cable screws onto the back of the gearbox. On the right side, just aft of the transmission crossmember
Part Numbers
B110 25050 SHAFT ASSY-FLEXIBLE, SPEEDOMETER JAPAN * 25050-H1000 L=1500 * 25050-H1001ᴳ L=1400mm * 25050-G1600 8108-8910 > 25050-H1001 * 25050-95W00 8910- USA - manual or automatic * 25050-H1602 ASSY-SHAFT FLEXIBLE L=1700
1700mm Rockauto.com $7.76 ATP Y885 $7.62
B10 25058-89914 ASS'Y-SHAFT, flexible M/T 25058-89915 ASS'Y-SHAFT, flexible Automatic
B210 25050-H5000 ASS'Y-SHAFT, flexible Length=1700 A12 * B5050-Y8101 supercedes 25050-H5000 $51.22 25050-H5900 ASS'Y-SHAFT Length=1650 w/Master Vac NLA 25050-H7403 ASS'Y-SHAFT 63-series trans 25050-H7410 ASS'Y-SHAFT A14 automatic 25050-H7411 ASS'Y-SHAFT A12 late
B310 * NOT compatible with B110/B210
Cable Breaks
The speedometer cable usually lasts forever. There are two common reasons why it will break:
- Mechanical kink or breakage, for example if you drive over a tree branch and it pulls the cable
- Bad or missing engine ground wire.
Additional reasons * Lack of grease * Break in cable allows water which freezes in winter
I think you'll find this is caused by poor/dirty ground strap from the engine to the body inside the engine bay.It only takes once, and the cable it screwed, as it melts the nice polyethylene coating on the inside.
See how the cable's protective plastic appear worn..I'd say it melted during starter crank. Then when the cable gets some speed up, the plastic grabs and the cable snaps.
Swap Cables
All 56-series 4-speed or 5-speed use the same cable.
For 60-series (4-speed or 5-speed), the speedo driven gear is slightly further back on the transmission. Some stock 1200 cables will work, but not all (depending on length).
For 63-series transmission a longer cable is required.
For 63-series gearbox, use a 610/710/810 cable, or a B210 cable.
NOTE: The B310 featured a clip-on cable instead of screw-on to the speedometer head. So the B310 cable will not interchange with the 1200 speedometer.
NOT interchangeable 910 1980- 810/Bluebird A10 Stanza/510 B310 Sunny/210 78-90cm
Comparison:
The 810 cable (1977-1979 810/200B) is of the same type as a 1200 but longer (about 1950mm).