MGA MGA Tachometer Termoil

[Bumble_Bee]

Have a '56 MGA Roadster and just about done putting it all back together. The problem is that the tach doesn't work when connected. Is there a part that goes in the mechanical tach unit on the engine that the cable goes into? The cable doesn't look too bad...please let me know your thoughts.

 

[LCVDriver]

Hi,
I've got a drawing up but no data or descriptions, maybe just the visual can help? I hope so!

->
https://www.auto-part.com/britCatalogs/mga/mgaPage.asp?index=mga/&model=6&page=2

Cheers, Bob

 

[BOXoROCKS]

spin the cable with a drill, then you'll know if the tach works...or the squared inside of the drive pinion may be wallowed out,pull it out and looky.