Checking my timing and formed a couple questions.
First, is there a tolerance for the mag sync? Obviously I’m aiming to get them identical, but for say just checking, what’s “close enough” to not bother adjusting?
Second, my impulse coupling seems to be snapping late when I pull the prop through by hand. It’s a 25* lag and I have the mag set at 20* BTDC. When I pull the prop through to release it before checking the timing, it’s snapping at ~10* ATDC rather than the 5* ATDC I’d expect. Is this just due to the slow speed hand pull or is the coupling suspect?
First, is there a tolerance for the mag sync? Obviously I’m aiming to get them identical, but for say just checking, what’s “close enough” to not bother adjusting?
Second, my impulse coupling seems to be snapping late when I pull the prop through by hand. It’s a 25* lag and I have the mag set at 20* BTDC. When I pull the prop through to release it before checking the timing, it’s snapping at ~10* ATDC rather than the 5* ATDC I’d expect. Is this just due to the slow speed hand pull or is the coupling suspect?