My name is Richard and I own a 1969 42’ Cheoy Lee
that I am restoring and I need some help in replacing my prop.
is equipped with a Perkins
4.236 with a borg warner 1:1 transmission
Problem I am facing is some one put a 1 ¾ prop on the boat
with a shim inside to downsize it to around 1 ½ “ to fit my drive shaft.
The prop is disintegrating and needs to be replaced.
So the prop shop I went to measured the size inside the shim at 1 ½, so I ordered a new prop. Well it did not fit right as it slide up the shaft a fraction of an inch to much up the shaft and had space on the bottom, letting the prop move up and down where it needed washers to take up the slack between the threads to get a tight fit.
It also had space inside the prop to shaft at the bottom, enough to cause a wobble.
This leads me to believe that the shaft is metric, but no one even Cheoy Lee
in Hong Kong
has records of my vintage.
Might anyone have any idea of what the shaft sizing is? Is it metric?