Tachometer and Speedometer Repair

[woodland_builders]

Hello all, it is great to see the new group on track and doing well. I
would like to go after the broken Tachometer and Speedometer on my 77
FC Diesel. Has anyone been down this road? Where is the pick up on the
engine for the tach? I do not have a book that covers a test procedure.
Does anyone know of one? My tach in the coach is electronic. I had a
3208 in a truck awhile back that was mechanical which makes me question
if the current tack is OEM. Are parts still available? The speedometer
runs up to about 35 mph and then stays there reguardless of higher
speed. I think the internal weights may be restricted. Does the guage
come apart and has anyone been in there? Thanks Gene

Gene Chaude
77 FC33
Connecticut