Hi All after consulting the manual at 1000rpm the grey tach wire should show 9v +or- 1v. Came in at 2.38v, disconnected the grey wire from the terminal strip as pictured and it raised by 1v as it should. Disconnected the VRO Amphenol connector it also raised the reading by about 1v.
Ignition on, engine not running connected volt meter to engine harness grey lead, disconnected tacho from circuit 0.03v was the reading.
In the pics attached of my engine the box on top of the L/H cylinder bank what does this do my manual does not show this component. The pic of the terminal strip is it possible to have the yellow leads attached the wrong way around?
Does any body know if the setting on the back of the tacho would effect max rpm reading i also believe when the tack drops off so does the charge rate drop the rpm the charge rate returns to normal. 4 to 4500rpm the tacho drops out no charging. Keep tacho under 4500 no problems. What the hell is going on with this thing.
Any vice admirals have some ideas on this issue, all input is greatly appreciated
Thanks to all