PDA

View Full Version : Taper Crank to Flanged Crank


Grant
07-02-2020, 04:43 PM
We have a taper shaft 65HP that is coming off and we have an overhauled flanged shaft 65 Going on. We are using the same prop model but a finer pitch. Will the bolts be the same between the taper and flange shaft? I assume we use the front crush plate and just bolt it up to the flange without the bushings and that should be it.... i just want to know before we are sitting there wishing we would have had this solved before the prop shows up in a week.

I could not find any direct refrence when searching and the Sensinich guys are gone for the day.....

Thanks!
BC12D-4-85
07-02-2020, 06:12 PM
Sensenich info: http://www.sensenich.com/documents/

Wood prop?: http://www.sensenich.com/wp-content/uploads/2018/01/Installation_Instructions_Wood_Aircraft_Installati on_1452800693.pdf

Gary
bob turner
07-02-2020, 06:50 PM
Yes. Just have to take the ferrules out of your old prop.

Happiness is you will have a teeney bit more room between cowl pins and prop. Unhappiness is the prop seal is harder to change. Happiness is it is probably a C-85 crank, worth more tha the engine!
bob turner
07-02-2020, 06:50 PM
Oh- you need different bolts.
BC12D-4-85
07-02-2020, 07:17 PM
https://www.wagaero.com/propellers/propeller-accessories.html

Gary
dirthog4
07-05-2020, 08:28 AM
https://www.wagaero.com/propellers/propeller-accessories.html

Gary
Univair had bolts for a reasonable price when I needed some
Grant
07-05-2020, 09:19 AM
Follow up - I found the correct bolts and have them on order. They should be here next week and this J3 should be back flying in the next two weeks.
hotrod180
07-05-2020, 09:47 AM
A friend of mine was installing a prop on a project airplane & had to buy prop bolts.
He told me that they charge quite a premium for a "prop bolt kit" vs just buying 6 of the correct AN bolts.
Grant
07-05-2020, 09:49 AM
A friend of mine was installing a prop on a project airplane & had to buy prop bolts.
He told me that they charge quite a premium for a "prop bolt kit" vs just buying 6 of the correct AN bolts.

There is a difference, but in some installations the Regular AN bolt IS the correct bolt. In this case the AN bolt is the correct one.