ok found a source to make this work like new.
buy the blower wheel
from grainger part number
Beckett 2999U Blower Wheel, 4 1/4 Dia, 2 1/2 in Depth
only thing is this, the wheel has a 1/2 inch center hole, so buy from McMaster-Carr a sleeve spacer
90309A348 2.90 2.45
Zinc-Plated Brass Unthreaded Spacer 1/2" OD, 7/8" Length, 1/4" Screw Size
which you can only get in a 1/4 inch hole and drill out to 5/16 hole for motor
shaft. Then put spacer in blower wheel and drill thru brass bushing for set screw.
The set screw might be too short so you have to get a longer one.
here is my taken apart blower freshly painted. This one came with the boat and is made by Perko and is metal case. The footprint attachment has a different bolt pattern so I will fix this and keep the other PAR one for some other use.
If someone has a better idea on the bushing ??
they do sell bronze bushing in the right size so no drilling out the central hole. still got to drill side hole for set screw.
1/2" 1" 6391K443 1.40 9368T126 1.60 2868T69 1.42
SAE 841 Bronze Sleeve Bearing for 5/16" Shaft Diameter, 1/2" OD, 1" Length
Bearing Tolerance Information
sae 841 sae 863 what is the diff?
sae 863 turns out this is a stronger bushing, has more iron and is silver colored, So I ordered 2 of these.