Two images just taken: 1986 +4 Fiat 2L engine top and bottom of bell housing. Top has 2 holes, bottom shows plate mentioned above. Hope this is useful.
https://tm-img.com/image/3OJH1
https://tm-img.com/image/3OP3j

Now about my formerly electronic, short dipstick...


1986 Plus 4, Fiat 2L TC stage II tuned 4-seater
Assistant Passenger/Map Reader/Mechanic