Re: 1953 Corsair water pump issues.

[jeff-register]

Steve,
I know for sure the Scott Guy Don after his passing by family has had all of his stock sold to another person, remains to be announced yet. Doug Penn has been rumered to have bought it all but still to be known at this time. I too own a few Scotts as my first motor over 35 years ago was a 1953 Firestone 7.5hp engine. Looking thru my Corsair parts book it shows O-rings below the impeller housing. The first goes above the pinion bearing to seal the drive shaft from above & the second is above that. The second fits the outside diameter of the stainless housing directly below the impeller housing above the other O-ring. Next the housing is sealed into the aluminum case with some kind of sealer. I used silicone caulk. Also both ends of the water tube has O-rings on them too. You should see the indent in the cav plate where it is to be placed. The shift rod also has an O-ring inside the small aluminum pipe that guides the rod into the gear cavity, but not much of a seal. I added a piece of blood pressure tubing to also seal the rod & the top of the case to help. Before Don passed he told me to check the three threaded holes for the cover to check for flatness & file until flush as they pull up & keep the case from sealing. The gearcase it’self I had machined deeper so I can now stack two pinion bearing seals for better driveshaftsealing, one up to keep oil in & the other to keep water out. The shafts are very hard to find without pits either. I used jb weld to fill them in, not perfect but smoothed out the sharp edges.