Good day
Can someone please confirm the prop bolt torques on an 0-300A (8 bolt) for me. My bird is a 1953 170B, sn 25966, C-FZRT. In the book I have, I have found 250 inch pounds, but I seem to remember reading somewhere that there was a changeup. Any help appreciated
Thanks
Gary
prop blade torques
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
Re: prop blade torques
Gary,
Go to the top of the Hanger forum and use the search this forum box. Put in the word prop a space and then the word torque i.e. "prop torque" and you will get a bunch of info on prop torque and bolt sizes. I just went through it with a O-300-B. We compromised and used 300 inch pounds as it seemed some said 250 and some said something like 350.
Check out the search.
SteveF
Go to the top of the Hanger forum and use the search this forum box. Put in the word prop a space and then the word torque i.e. "prop torque" and you will get a bunch of info on prop torque and bolt sizes. I just went through it with a O-300-B. We compromised and used 300 inch pounds as it seemed some said 250 and some said something like 350.
Check out the search.
SteveF
Re: prop blade torques
What I did was went to the manufacturers website and used those torques.
Re: prop blade torques
McCauley SB 227B applies:
Fixed pitch props are torqued according to bolt size:
Bolt size, foot pounds, inch-pounds
3/8........30 to 25.........360 to 300
7/16......45 to 40......540 to 480
1/2.......65 to 55.......780 to 660
Fixed pitch props are torqued according to bolt size:
Bolt size, foot pounds, inch-pounds
3/8........30 to 25.........360 to 300
7/16......45 to 40......540 to 480
1/2.......65 to 55.......780 to 660
- Attachments
-
- McCauley Prop Mount Torque.pdf
- McCauley SB227B, Prop Mount Torque
- (440.47 KiB) Downloaded 233 times
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.