outboard cooling systems Flashcards
1
Q
where does water enter outboard
A
water inlet
2
Q
what is water inlet purpose
A
the inlet is an opening that allows water to enter engine
3
Q
where is water pump located on outboard
A
mounted on lower unit
4
Q
purpose of thermostat
A
regulating valve that opens and closes depending on temperature
5
Q
purpose of thermostat bleed hole
A
small hole at top of thermostat where cooling water goes through until engine temperature rises
6
Q
check PVC balance for stuck condition
A
if sticks in open mode- amount of cooling water to power head decreases which can cause engine to overheat at low rpm
7
Q
one rotation of the thimble on a standard micrometer is equal to
A
0.025”
8
Q
one rotation of the thimble on a metric micrometer is equal to
A
0.50mm
