Magnetos for Lycoming O-145 65 hp engine

[everell]

Need manufacturer name and part numbers for magnetos used on Lycoming O-145 65 hp engine used on Taylorcraft BL65

[Garry Crookham]

Per TCDS E-210 Lycoming 0-145b1, b2

Scintilla SF-4L, SF4LN-20, -21, Superior SMA-4 or Edison-Splitdorf RMA-4

[3Dreaming]

Slick may also have something approved under a STC.

[everell]

Thanks for the information. Can you tell me what the difference is between Scintilla SF-4L, SF4LN-20, and -21? Also which ones have the impulse coupling coil?

[3Dreaming]

The SF-4L is the old style mag without impulse couplings. If they are in good shape starting without the impulse coupling is not a problem, but you do need to spin the prop faster. Especially when the engine is hot. The SF4LN-20 and SF4LN-21 are newer style magnetos. They can be ordered new. The -21 is an impulse magneto. The newer mags are also lighter.

[everell]

Thank you for that information

[everell]

Does anyone have an old used Bendix Scintilla SF4LN-21 laying around and for sale?

[3Dreaming]

We always just used the SF4's.

[everell]

Does anyone know how the SF4LN-8 compares with the SF4LN-20?