Yamaha prop swap to Chrysler 105

[George Pan]

My Chrysler 105hp comes with a 13x21 Chrysler propeller. I have an inflatable rib .My peak rpm are 5.000-5200 with 42 miles.
I want to change to lower prop but before decide i want to try some propellers. I am between a 17 or 19 or 17 4 blade.
Problem is that here in Greece no one have propellers for Chrysler .
Is very easy for me to have Yamaha propellers . They have same spline (15) but i need some mods to fit perfect.

For sure i need a spacer at the back after the thrust washer . At front looks easy but i haven't enough place to add the stock locker .

If i remove it is very dangerous ?

I took some pics to understand me better.

Thanks

 

[flyingscott]

I would not run your prop like that Go to ebay or call salvage yds in america to find the right prop most of them will ship to you.

 

[steelespike]

The prop needs to fit to the gear case so exhaust doesn't foul the blades.
If you can find a good prop shop they can repair and alter your prop.
What is it you want to accomplish? I can tell your numbers don't add up.
Do you know your gear ratio? At 5200 your at about the max rpm.
Less pitch will increase rpm even more.

 

[Texasmark]

Hey Frank A. "This one's for you!"

 

[SkiDad]

Can you get a Michigan propeller ? If so look for 072107 or 072108. These are 17 and 19 pitch props that fit. Remember that Force is the same as Chrysler in the 80's. There are also some nice propellers on eBay like others said. I do know that turning point props will fit as well but require a Mercury hub hit.