Re: Mercury KF7 Super 10 Bearing Question – UPDATED!!

[20mercman]

Scott;

Great to see this fine machine out on the water! I think it looks great!

Jeff, you are correct, or at least I believe, it is a KE-7 tower assembly. As long as you are using the tower and foot as a package, the drive shaft length will be correct and you will get enough crankshaft engagement. I think it is a blast to build a motor from the spare parts pile. For all intents and purposes, this is more a KE-7 than an F, but so what? The KF-7 was a transition motor, bridging the gap between the KE-7 and the KG-7. The KF-7 had the same transom clamp as the KE-7, but used the longer drive shaft housing and the friction disc pack in the prop hub. The KF/KG shared the same lower unit, water pump and drive shaft housing. Some early KG’s also used the old style transom clamps before they went with the forged clamps. The KE/KF shared the same power head with the 4 reed block, but with a different carburetor. AJ-19 vs. AJ-29. Service parts later suggested the AJ-29 for replacement for the AJ-19. Also the Magneto was upgraded to the oval style Bendix/Scintilla magneto with the KF-7. The other difference was the use of curved transfer port covers on the KF block vs. the flat steel plate on the early KE blocks. All 3 of my KE-7’s have the updated transfer port covers, although my original motor did come with the flat plate. Fun things to build and contemplate the differences!

Steve