T&T: Tacho on Ford Lehman 120

[Jim Ague]

>>I just started my twin Lehman 120's for the first time this year and 
>>noticed
>>that the tacho on the port engine is showing no reading at any RPM.  I 
>>have
>>not experienced any previous difficulty and therefore have not 
>>investigated
>>this system.   Before I start to delve through my manuals, can anybody
>>suggest the first three or four obvious things I should check.    Thanks 
>>in
>>advance.
>>
>>
>>
> Dave
>
> Easy check, just swap tachs, if the working tach works when you swap it 
> then you have a bad tach.  Easy fix!
> I just had to replace one of my VDO tachs this year.
>
See if the end of wire from bad tach that attaches to alternator on engine 
is still attached. Mine used to come off due to engine vibration, or maybe 
it was my fat ass crawling around the engine room.

-- Jim