I am removing an engine pre-heater coil that is attached beneath the sump by 4 small hangers that are attached via the sump bolts.
The two forward bolts are easy to see and consist of a 7/16” bolt, washer and nut.
However the aft bolts (one at each corner) appear to thread directly in to the case. No washer and nut on top that I can see.
I just want to confirm that’s true and there is t some type of fastener or nut that I won’t be able to get to after I remove the hanger.
Are some of the aft bolts just threaded in to the case?
Lycoming o-320 D3G.
Thanks.
The two forward bolts are easy to see and consist of a 7/16” bolt, washer and nut.
However the aft bolts (one at each corner) appear to thread directly in to the case. No washer and nut on top that I can see.
I just want to confirm that’s true and there is t some type of fastener or nut that I won’t be able to get to after I remove the hanger.
Are some of the aft bolts just threaded in to the case?
Lycoming o-320 D3G.
Thanks.