Prop shaft diameter for 74 E27

Hi

Does anyone know offhand what the diameter of the shaft is for an E27...i need to change the zinc while in the water and want to have the right one on hand when i can get a diver over..i believe the shaft to be original with the original Atomic 4 inboard....for some reason iam thinking 7/8ths but not positive...also has anyone changed a zinc with just a mask and snorkel...water is pretty cold up here in BC but i think the real issue would be buoyancy and how long i can actually hold my breath....



thanks

shaft dia.

Can you get a set of calipers on the shaft between the packing gland and the coupling? That will tell you what it is. Harold

I believe the E-27s (at least two that I have had hands on experience with) have 3/4 inch prop shafts


-David
Independence 31
Emerald

I just replaced mine. .750 dia is what our 79 has.