This motor uses Sears Gamefisher parts which can still be obtainted today. Ted Williams endorsed this motor during its inception.
7.5 ted williams outboard motor parts manual#
(It went from Scott to McCulloch to Chrysler.) Check out the Chrysler service manual for an idea of how it works. What is the oil gas mix ratio on a ted Williams 7.5 outboard motor I have a late 1960's Ted Williams air-cooled 7.5 hp outboard produced by Eska with the manual. Tecumseh manufactured outboards for Gamefisher Outboards, Sears, and Eska in the 1970s and 1980s.
I believe the Ted Williams outboard uses the Scott system. Mercury Used a hollow shaft but rotated the shift rod to change gears. Scott Atwater used a hollow prop shaft with a step tapered cam on the end of the shift rod engaging the spring loaded dog clutch with a rod through the center of the prop shaft. OMC used a yoke coupled with a right angle lever to transfer the up and down of the shift rod to the forward & backward motion of the dog clutch. The patent was on how the clutch is moved. (The motor should be idling at this time.) The dogs will then drop into spaces between the dogs in the gear. When the shift lever is moved to forward, it pushes the dogs against the forward gear. The pinion drives them in opposite directions.The dog clutch is in the middle and when in neutral does not touch either one. 60s Sears Ted Williams 7.5 Hp Outboard Flywheel Motor Model Mcculloch 574.60607 14.
The forward and reverse gears are both engaged with the pinion gear on the drive shaft. The way a dog clutch works is to slide into spaces in the gear.