Mgb Tachometer Wiring

As before the earth wire goes under one of the knurled nuts securing the tach in the dash the position for the gauge illumination lamp is on the left and the insulated holder for the ignition warning lamp on the right.

Mgb tachometer wiring. Tachometer oil pressure water temperature diagram 3 67 68 mgb from bentley e1898w fuse box b bg gb rear window defroster switch gt only radio n cigar lighter b h i g h b e a m s high beam indicator uw uw uw ur ur ur uw ur b b b b u dimmer switch rg g tachometer w distributor ignition coil wb f o n t p a r k i n g l i g h t s r t a i l l i g h t s l l i c e n s e p l a t e a m p s r r r r r r r b b r r r r r b b horn button horns p p pb pb pb b pw pw pw b p. Run the tachometer wiring around or through the dash board down to the firewall behind the gas pedal. Mg mgb technical 65 67 tach wiring. Mgb tachometer rev counter brand new instruments and gauges are now available again for most applications ofter at less than the cost of reconditioned units br sympathetically re tooled to match exactly the original units using modern technology.

Mg parts spares and accessories are available for mg t series ta mg tb mg tc mg td mg tf magnette mga twin cam mgb mgbgt mgc mgc gt mg midget sprite and other mg models from british car spares company lbcarco. In the mgb this wire including the nylon insulator block is part of the wiring harness. These pdf files can print full size on 11 x 17 paper. Your instructions will have me connect the white wire from the 8920 to the negative side of the coil the red wire from the 8920 to the positive side of the coil and the black wire to ground.

Referring to the illustration above select one of the wires and tag it with two pieces of tape for identification. In actuality the potentiometer should have been shown as being attached to terminals 3 and 8. 62 64 mgb from bentley a8753aw 64 67 mgb from bentley b51798 67 68 mgb from bentley e1898w 68 69 mgb from bentley e2333w 68 70 mgb from bentley e2764w. Use tie wraps to secure the tachometer wires to the body of the car.

W g walker guest. Click links for 33 different wiring diagrams for mgb and mgc large format in color. The pick up in wire from the ignition switch goes on the male bullet on the left and the out wire to the coil goes on the insulated female on the right. Wiring diagrams for mgb mgc.

In the wiring schematic illustrated in figure 1 the potentiometer is shown as being connected to chip terminals 4 and 7. In the article converting the mgb tachometer to v 8 calibration which appeared in the last newsletter volume viii issue 2 there was a major error.