Shared Flashcard Set

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UWS 305
Small engines midterm
26
Other
Not Applicable
03/10/2015

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Cards

Term
oil commonly used in gasoline engines
Definition
10w30 oil
Term
what 3 things does a engine need to run
Definition
Triangle: spark, compression, fuel and air
Term
Storage of Gasoline Equipment Engines
Definition
Storage: gasoline fuel stabilizer
-fogging oil
-2 stroke or 4 stroke engines
Term
Diesel Engines oil
Definition
15W40 oil
Term
what diesel is a 2 stroke
Definition
“Detroit diesels”
Term
diesel requirements to run
Definition
Requirements: high compression and atomized fuel spray
Term
storage for diesel
Definition
keep water out, can sit for long periods of time, and still be able to start up with nothing done to engines for storage
Term
low pressure compressor (lp)
Definition
300psi and below
Term
high pressure (hp)
Definition
300 and up
Term
outboard motors are found in
Definition
boats
Term
outboard motors
Definition
Specialized unit of a complete design – engine cannot be adapted – designed as a unit to move a vessel through water
Term
Short shaft vrs. long shaft
Definition
measure from the bottom of the motor clamp that goes on the transom to the top of the cavitation plate just above the prop.
Term
Short shaft
Definition
- 15” +/- 1”= short shaft
Term
long shaft
Definition
- 20” +/- 1”= long shaft
Term
where do you fill the gear oil up to on an outboard motor
Definition
oil fill threats sometimes has a sight glass
-works best if pumped from bottom plug
Term
Troubleshooting
Definition
-How to find clues
-How to “isolate” to prove or disprove your guess
-Keep it simple to start
-Don’t be too quick, take a few moments to look, reason, and think – it can save you a lot of time later
Term
two stroke
Definition
-mixed fuel
Term
gasoline compression ratio
Definition
10:1
Term
diesel compression ratio
Definition
15:1 to 22:1
Term
Diesel engine compression developed
Definition
500 – 600 PSI range
Term
Gas engine compression developed
Definition
120 – 225 PSI range
Term
4 cycle gas engines develop their greatest torque and power output
Definition
2500 – 3000 RPM range
Term
Diesel engines develop their greatest torque and power output
Definition
1600 – 2200 RPM range
Term
2 cycle gas engines are designed to rev out
Definition
often 6500RPM, sometimes over 10,000RPM
Term
Fuel Systems
Definition
-Air filters
-Fuel filters
-Fuel pumps
-Carburetors
-Injectors
-Injection pumps
Term
Carburetor (carb)
Definition
to atomize the liquid fuel efficiently at all engine speeds and loads.
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