McCauley Prop Bolt Length
Posted: Tue Jul 11, 2017 2:52 pm
A quick request for help. I have a McCauley IB90CM 7048 installed on my C85-F engine on my Cessna 120.
The prop bolts do not protrude from the flange by the usual number of threads we expect to see with other nuts. They are basically flush with it. I have some replacement parts on order (AN6H-32A) which equate to the A-2513-8 bolts supplied by McCauley. However, these are on back order - time of delivery indeterminate.
There are some comments on the Cessna 120 website that the prop bolts on a IB90CM do not protrude.
Does anyone have one of these props fitted to their aircraft with the paperwork to show that the correct bolts are fitted ? Would you be prepared to share a photograph of the bolts and how far they protrude ?
Whilst I am happy to replace the bolts when they eventually arrive I am fairly convinced that what I have fitted currently are the correct bolts but, in the absence of evidence to back up that this is what the bolts should look like when fitted and torqued correctly, I can see myself going round in a bit of a loop trying to find bolts that meet the usual practice.
The prop bolts do not protrude from the flange by the usual number of threads we expect to see with other nuts. They are basically flush with it. I have some replacement parts on order (AN6H-32A) which equate to the A-2513-8 bolts supplied by McCauley. However, these are on back order - time of delivery indeterminate.
There are some comments on the Cessna 120 website that the prop bolts on a IB90CM do not protrude.
Does anyone have one of these props fitted to their aircraft with the paperwork to show that the correct bolts are fitted ? Would you be prepared to share a photograph of the bolts and how far they protrude ?
Whilst I am happy to replace the bolts when they eventually arrive I am fairly convinced that what I have fitted currently are the correct bolts but, in the absence of evidence to back up that this is what the bolts should look like when fitted and torqued correctly, I can see myself going round in a bit of a loop trying to find bolts that meet the usual practice.