Ever wonder why the standby alternator or vacuum pump isn’t working? There is a drive coupling that is designed to break if something becomes stuck. They are also supposed to be replaced every 500 hours or they can start looking like this!
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Nuts and Bolts
Dave Prizio - 4
Aircraft quality nuts, bolts, washers and other hardware are the right things to use if they hold the things together that keep you in the air.
Supercharged F-1 Rocket
While builder Wolfgang Meyn loved the F-1 Rocket quickbuild kit, things got a little more complicated (and exciting) when he decided to add an Aero Supercharger Solutions supercharger teamed up with a modified Airflow Performance fuel-injection system; by Ed Wischmeyer.
last time I looked, the vacuum pump drive spool had a 500hr OR 10 year service life whichever comes first.
Perhaps this is newer data than when you last looked, butTempest has a service letter, SL-001 which recommends replacement every 6 years.
In our glass cockpits the standby alternaotr seems pretty important. That’s why we recommend 5 years.
Vic