ANNUAL CONDITION INSPECTION
Viking Engine Annual Inspection
o Change engine oil and filter if dirty (send sample to Blackstone Labs for testing and results to Viking for analysis) Should be changed every 25-50 hours
o Change gearbox oil if dirty (send sample as above) Should be changed every 25 hours.
o Inspect gearbox coupling and related parts
o Check all gearbox and engine bolt torque
o Check propeller bolt torque and general propeller/spinner condition
o Check idler pulley, alternator and coolant pump while replacing accessory belt (carefully inspect main alternator cable lug)
o Replace fuel system pre-filters every year or every 200 hours whichever comes first
o Check fuel system for leaks, chaffing, loose clamps, deteriorating hoses and overall general condition
o Verify fuel flow at engine fuel quick disconnect to be approximately 50-60 oz. per minute (single pump)
o Compression test with automotive tester (160-210 psi, see Youtube for suggestions)
o Inspect engine mount and rubber dampers for cracks, bolt torque and engine alignment
o Check throttle(s) for defects/travel
o Service K&N air filter with service kit
o Exhaust for cracks and improper attachment
o All systems for improper installation, poor general condition, defects and insecure attachment
o Cowling for cracks, chaffing and defects
o Verify that engine related wiring is secure, no chaffing and that only engine related circuitry is on the positive and negative ENGINE busses
o Verify engine operation: should start on two batteries, should run on either battery by itself or on the alternator without any batteries
o Check Valve Clearances (As needed or yearly)
o Ensure 6mm gearbox front cover bolts – 150 in. lbs & 1/2 in. gearbox attach bolts are 70 ft. lbs. if it has a nut and 55 ft. lbs. if threaded into the engine.
o Valve Lash Check Yearly, or every 100 hours, adjust if needed
o Fuel Filter change yearly or every 200 hours, whichever comes first.
o Torsion Damper, change every five years
o Alternator Belt, change every 2 years (be extremely careful not to chip the coolant pump pulley when replacing the belt on the 195 Turbo engine)
o Please note this is a BASELINE – please look over any and all parts of your engine and airframe. Refer to website to see any suggested changes and add-ons.
Two Very great resources for condition inspection are linked below from Kitplanes
Be sure to complete an oil analysis every year.
It is AMAZING when an engine can prove to the world that the wear and tear is 50% lower than the norm. Hopefully all engine providers will post these reports.
“Attached is the oil report on my engine at 330 hrs. or so. Nice to get a report like this. It just strengthens my confidence in a great engine. Thanks for all you do to support our flying!!! "
