lindy46
Captain
- Joined
- Nov 27, 2008
- Messages
- 3,886
Re: 1957 Evinrude Big Twin 35 impeller replacement help!!!
Get a new impeller - don't even bother messing around with the old one. The impeller fits very tight in the housing. The driveshaft spins clockwise when viewed from above ,so the ends of the fins should trail counterclockwise. However, when you're putting the impeller into the housing, you are actually looking at it from underneath, so the ends of the fins should trail clockwise. Sort of hard to picture. But even if you get them wrong, they will right themselves once the impeller starts turning at high rpms. Make sure the keyway in the impeller fits over the pin/key on the driveshaft.
Get a new impeller - don't even bother messing around with the old one. The impeller fits very tight in the housing. The driveshaft spins clockwise when viewed from above ,so the ends of the fins should trail counterclockwise. However, when you're putting the impeller into the housing, you are actually looking at it from underneath, so the ends of the fins should trail clockwise. Sort of hard to picture. But even if you get them wrong, they will right themselves once the impeller starts turning at high rpms. Make sure the keyway in the impeller fits over the pin/key on the driveshaft.
