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Rotax 912 ULS 3 - Troubleshooting: Oil Level and Cold Start; Oil Level Issues; Cold Start Problems

Rotax 912 ULS 3
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Effectivity: 912 Serie BRP-Powertrain page 4-6
OM Edition 2 / Rev. 0 April 01/2010
d04676.fm
Oil level Oil level is increasing
Cold engine start Engine hard to start at low temperature
Possible cause Remedy
Oil too cold during engine op-
eration.
cover oil cooler surface, maintain the oil
temperature prescribed.
Possible cause Remedy
Starting speed too low. preheat engine.
Low charge battery. fit fully charged battery.
High oil pressure. At cold start a pressure reading of up to
around 7 bar (102 psi) does not indicate
a malfunction.
Oil pressure too low after cold
start.
Too much resistance in the oil suction
tube at low temperatures. Stop engine
and preheat oil.
At oil pressure reading too low than 1
bar oils with lower viscosity are to be
used.
See SI-912-016, current issue.
NOTE:
Oil pressure at idle must be a minimum of
50 °C (120 °F) to be measured accurately.
Be sure the oil pressure does not go below
minimum at idle.

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