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LUBRICATION SYSTEM - PowerPoint PPT Presentation

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LUBRICATION SYSTEM. LUBRICATION SYSTEM. Six Functions of Motor Oil Reduce friction Reduce wear Seal power Absorb shock Clean Cool. Lubrication System Types. Splash Pressure Fed or Force Feed Combination Pressure Fed and Splash Gasoline Oil Premix. Lubricating System Parts. Oil pan

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lubrication system2
  • Six Functions of Motor Oil
  • Reduce friction
  • Reduce wear
  • Seal power
  • Absorb shock
  • Clean
  • Cool
lubrication system types
Lubrication System Types
  • Splash
  • Pressure Fed or Force Feed
  • Combination Pressure Fed and Splash
  • Gasoline Oil Premix
lubricating system parts
Lubricating System Parts
  • Oil pan
  • Oil pump
  • Pick-up screen
  • Pressure regulator
  • Oil filter
  • By-pass valve
  • Oil galleries
  • Dipstick
  • Pressure indicator
oil pan
Oil Pan
  • Storage reservoir for motor oil.
  • Holds 3 to 6 quarts with 4 as most average.
  • Plug on bottom to drain.
  • Pick-up screen sucks oil up from oil pump.
oil pumps
Oil Pumps
  • Gear types
  • Rotor
  • Gerotor type
  • All oil pumps use a pick-up screen in the pan and a pressure regulator.
oil filters
Oil Filters
  • Micro-porous paper filters used to screen out particles.
  • Most filters of the cartridge type.
oil filter systems
Oil Filter Systems
  • Remove harmful materials
bypass systems
Bypass Systems
  • Part of oil to filter > pan
  • Part to bearings
shunt filter systems
Shunt Filter Systems
  • Some oil through filter > bearings
  • Some directly to bearings
full flow filter systems
Full Flow Filter Systems
  • All oil goes through filter
oil level and pressure indicators
Oil Level and Pressure Indicators
  • Dipstick the most simple
  • Some engines equipped with an electrical level indicator.
  • Oil pressure indicator lamp
  • Oil pressure gauge (electrical or mechanical)
motor oil characteristics
Motor Oil Characteristics
  • Oil Viscosity/SAE
  • Ease which oil flows
  • S.A.E Rating (Society of Automotive Engineers)
  • Service Rating/API
  • Oil Quality
  • A.P.I. (American Petroleum Institute)
  • Other Fluids & Lubricants
a p i ratings
A.P.I. Ratings
  • SA Straight mineral oil no additives.
  • SB 1930’s motor oil with some detergent.
  • SC 1950’s oil more additives.
  • SD 1960’s enter multi-viscosity oils.
  • SE 1970’s emission controls make heat is problem.
  • SF 1980’s improves fuel economy.
  • SG Late 1980’s wider viscosity ranges.
  • SH 1990’s great stuff.
  • SJ Late 1990’s
  • SL 200?’s
  • SM Current
selecting motor oil
Selecting Motor Oil
  • Pick proper viscosity as recommended by manufacturer.
  • Pick proper service rating as recommended by the manufacturer.
automatic transmission fluid atf
Automatic Transmission Fluid(ATF)
  • Has red color to identify it from motor oil.
  • Several kinds:
  • Dexron/Mercon
  • Type FA
gear lube
Gear Lube
  • Used in manual transmissions and differentials on rear drive cars.
  • Heavy viscosity 90W.
  • Looks like motor oil but smells real bad!
chassis grease
Chassis Grease
  • Conventional type of petroleum grease.
  • Grease steering and suspension parts.
other types of grease
Other Types of Grease
  • Lithium grease or white lube.
  • Used on mis. parts.
other lubricants
Other Lubricants
  • WD-40 is a light oil with graphite.
  • Liquid wrench is a penetrating oil for dry and rusted bolts.
non petroleum lubricants
Non Petroleum Lubricants
  • Silicone spray is for rubber and plastic parts. Doesn’t work well on metal.
  • Brake cleaner is like dry cleaning fluid. Cleans off grease and evaporates in seconds.
other useful fluids
Other Useful Fluids
  • Carburetor choke and throttle body cleaner. Contains toluene.
  • Starting fluid. Contains ether.
oil changes
Oil Changes
  • Oil Change frequency:
  • Every 25 -30 hours.
oil contamination
Oil Contamination
  • Blow-by gases add raw gasoline and water to the oil causing deterioration.
  • Excessive heat can cause thermal breakdown.
  • Excessive cranking can dilute oil with gasoline.
  • Cooling gasket leaks will ruin oil causing sludge.
things that make oil deteriorate faster
Things That Make Oil Deteriorate Faster
  • Short distance driving. (which is most trips)
  • Extensive idling.
  • Cold weather operation.
  • Trailer towing.
  • Excessive heavy loads
  • Dirty and dusty conditions.
proper oil disposal
Proper Oil Disposal
  • Waste motor oil is a controlled waste.
  • Be sure to properly dispose of.
  • Oil filters too!
changing oil
Changing Oil
  • Find the drain plug and remove it.
  • Catch the waste oil and dispose of it properly.
  • Don’t forget to reinstall the plug.
drain plugs
Drain Plugs
  • Be careful never to strip out drain plugs.
  • Extremely bad form.
changing the filter
Changing the Filter
  • Remove the filter with an oil filter wrench.
  • Dispose of the filter properly.
  • Install the new filter hand tight.
filter problems
Filter Problems
  • Always match the old to the new oil filter. The gasket and thread must be the same. If you make a mistake you can pump 5 quarts of oil on the floor in seconds!
chassis lubrication fluid checks
If the the vehicle is equipped with zerk fittings, grease those parts using the power grease gun.

Find and clean the fittings first, then inject the grease. One kick from the gun is plenty.

Under the car make the following checks:

Gear lube in the differential on rear drive cars.

Check tire air pressure. Be sure to find the proper inflation pressure.

Check manual transmission fluid if the car is a stick shift.

Chassis Lubrication & Fluid Checks
refilling motor oil
Refilling Motor Oil
  • Find crankcase capacity in one of the following references:
  • Owners manual?
  • Service manual.
  • Repair manual.
  • Computerized specification system.
under hood checks
Motor oil level

Power steering fluid

Coolant level

Brake fluid

Automatic transmission fluid. (The engine must be running)

Good technicians also do these things:

Check belt and hose condition.

Inspect the battery terminals.

Lubricate hood and door hinges.

Look for anything unusual under the hood.

Under Hood Checks
changing transmission fluid
Changing Transmission Fluid
  • Remove transmission oil pan. This is tricky so be careful you don’t get an oil bath.
  • Catch oil in motor oil drain pan with the tranny fluid basin. Dispose of properly.
  • Change the filter, clean the pan, and reinstall the pan with a new gasket.
replacing filter and pan gasket
Replacing Filter and Pan Gasket
  • Buy a filter kit which gives you a new filter and gasket.

Treat used tranny filters

as you would an oil filter.