Toyota Corolla 1970-1987 Repair Guide

Engine

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OIL LEVEL CHECK



See Figures 1, 2 and 3


CAUTION
Prolonged and repeated skin contact with used engine oil may be harmful, especially if no effort is made to remove the oil. Always follow these simple precautions when handling used motor oil



Avoid prolonged skin contact with used motor oil.
 
Remove oil from skin by washing thoroughly with soap and water or waterless hand cleaner. Do not use gasoline, thinners or other solvents.
 
Avoid prolonged skin contact with oil-soaked clothing.
 

Every time you stop for fuel, check the engine oil making sure the engine has fully warmed and the vehicle is parked on a level surface. Because it takes a few minutes for all the oil to drain back to the oil pan, you should wait a few minutes before checking your oil. If you are doing this at a fuel stop, first fill the fuel tank, then open the hood and check the oil, but don't get so carried away as to forget to pay for the fuel. Most station attendants won't believe that you forgot.



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Fig. Fig. 1: Locate the dipstick (towards the rear of the engine compartment) and withdraw it from the guide tube



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Fig. Fig. 2: Wipe oil from the dipstick using a clean rag, then fully reinsert it into the guide tube in order to check the level



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Fig. Fig. 3: A properly filled crankcase is indicated by oil just up to the top of the F or full mark on the dipstick

  1. Park the car on a level surface.
  2.  
  3. When checking the oil level it is best for the engine to be at operating temperature, but keep in mind that checking the oil immediately after stopping will lead to a false reading. Wait a few minutes after turning the engine OFF in order to allow the oil to drain back into the crankcase.
  4.  
  5. Open the hood and locate the dipstick. Pull the dipstick from its tube, wipe it clean and reinsert it.
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  7. Pull the dipstick out again and, holding is horizontally, read the oil level. The oil should be between the F and L or high and low marks on the dipstick. If the oil is below the L or low mark, add oil of the proper viscosity through the capped opening on the top of the cylinder head cover. Please refer to the oil recommendation information found earlier in this section for the proper viscosity and rating of oil to use.
  8.  
  9. Replace the dipstick and check the oil level again after adding any oil. Be careful not to overfill the crankcase. Approximately one quart of oil will raise the level from the L or low mark to the F or high mark. Excess oil will generally be consumed at an accelerated rate.
  10.  

OIL AND FILTER CHANGE



See Figures 4 through 14


CAUTION
Prolonged and repeated skin contact with used engine oil, with no effort to remove the oil, may be harmful. Always follow these simple precautions when handling used motor oil:



Avoid prolonged skin contact with used motor oil.
 
Remove oil from skin by washing thoroughly with soap and water or waterless hand cleaner. Do not use gasoline, thinners or other solvents.
 
Avoid prolonged skin contact with oil-soaked clothing.
 

If the vehicle is operated on a daily or semi-daily basis and most trips are for several miles (allowing the engine to properly warm-up), the oil should be changed a minimum of every 12 months or 10,000 miles whichever comes first.

If however, the vehicle is used to tow a trailer, is made to idle for extended periods of time (such as in heavy daily traffic) or if used as a service vehicle (police, taxi, delivery) or the vehicle is used for only short trips in below freezing temperature, the oil change interval should be shortened. Likewise, if your vehicle is used under dusty, polluted or off-road conditions, the oil should be changed more frequently. Under these circumstances oil has a greater chance of building up sludge and contaminants which could damage your engine. If your vehicle use fits into these circumstance, as most do, it is suggested that the oil and filter be changed every 5,000 miles or 6 months, whichever comes first.

Oil should always be changed after the engine has been running long enough to bring it up to normal operating temperature. Hot oil will flow easier and more contaminants will be removed along with the oil than if it were drained cold.

The oil drain plug is located on the bottom, rear of the oil pan (bottom of the engine, underneath the car).

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Fig. Fig. 4: If equipped it may be necessary to remove the splash shield(s) for access to the drain plug/filter



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Fig. Fig. 5: After the retainers are removed, carefully lower the splash shield(s) from the vehicle



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Fig. Fig. 6: Loosen the oil pan drain plug using an appropriate socket or box wrench



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Fig. Fig. 7: Unthread the drain plug, then withdraw the plug while moving your hand away from the hot oil



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Fig. Fig. 8: Allow the oil to completely drain from the crankcase



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Fig. Fig. 9: Install the drain plug and tighten being careful not to overtighten and strip the plug



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Fig. Fig. 10: Loosen the oil filter using a strap wrench



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Fig. Fig. 11: Coat the new oil filter gasket with clean engine oil



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Fig. Fig. 12: Install the new filter BY HAND, do not use a filter wrench



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Fig. Fig. 13: Twist and remove the cover from the oil fill (usually found on the cylinder head cover)



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Fig. Fig. 14: After the plug and new filter is installed, add clean engine oil IMMEDIATELY. Waiting is only taking the risk that you might forget

Except California Diesel Engines

See Figure 16

  1. Run the engine until it reaches normal operating temperature.
  2.  
  3. Raise the front of the vehicle and support it safely using a suitable pair of jackstands.
  4.  

Some vehicles may be equipped with a splash shield which must be removed in order to access the drain plug

  1. Slide a drain pan of a least 6 quarts capacity under the oil pan. Wipe the drain plug and surrounding area clean using an old rag.
  2.  

hand, using a rag to shield your fingers from the hot oil. By keeping an inward pressure on the plug as you unscrew it, oil won't escape past the threads and you can remove it without being burned by hot oil.

  1. Quickly withdraw the plug and move your hands out of the way. Allow the oil to drain completely in the pan, then install and carefully tighten the drain plug. Do not overtighten the drain plug, otherwise you'll be buying a new pan or a replacement plug for stripped threads.
  2.  

Although some manufacturers have at times recommended changing the oil filter every other oil change, we recommend the filter be replaced each time you change your oil. The added benefit of clean oil is quickly lost if the old filter is clogged. The added protection to your engine far outweighs the few dollars saved by using an old filter

  1. Move the drain pan under the oil filter. Use a strap-type or cap-type filter wrench to loosen and remove the oil filter from the engine block. Keep in mind that it's holding a significant amount of dirty, hot oil.
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  3. Empty the old filter into the drain pan and properly dispose of the filter.
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  5. Using a clean rag, wipe off the filter adapter on the engine block. Be sure that the rag doesn't leave any lint which could clog an oil passage.
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  7. Coat the rubber gasket on the filter with fresh oil, then spin it onto the engine by hand; when the gasket touches the adapter surface, give it another 1 / 2 - 1 / 3 turn. No more, or you may squash the gasket causing it to leak.
  8.  
  9. Remove the jackstands and carefully lower the vehicle. IMMEDIATELY refill the engine with the correct amount of fresh oil. Refilling it right away will help prevent the possibility of someone accidentally attempting to start a dry engine. Please refer to the Capacities chart at the end of this section.
  10.  

See Figure 15



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Fig. Fig. 15: Install the new oil filter by hand

  1. Check the oil level on the dipstick. It is normal for the level to be a bit above the full mark. Start the engine and allow it to idle for a few minutes.
  2.  


CAUTION
Do not run the engine above idle speed until it has built up oil pressure, as indicated when the oil light goes out and/or the gauge moves up (out of the warning zone)

  1. Shut off the engine and allow the oil to flow back to the crankcase for a few minutes, then recheck the oil level. Check around the filter and drain plug for any leaks, and correct as necessary.
  2.  



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Fig. Fig. 16: On most engines, oil is added through the opening in the cylinder head (valve/camshaft) cover

California Diesel Engines

See Figures 17 and 18

  1. Run the engine until it reaches normal operating temperature.
  2.  
  3. Raise the front of the vehicle and support it safely using a suitable pair of jackstands.
  4.  

Some vehicles may be equipped with a splash shield which must be removed in order to access the drain plug

  1. Slide a drain pan of a least 6 quarts capacity under the oil pan. Wipe the drain plug and surrounding area clean using an old rag.
  2.  
  3. Loosen the drain plug using a ratchet, short extension and socket or a box-wrench. Turn the plug out by hand, using a rag to shield your fingers from the hot oil. By keeping an inward pressure on the plug as you unscrew it, oil won't escape past the threads and you can remove it without being burned by hot oil.
  4.  



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Fig. Fig. 17: Exploded view of the oil filter assembly found on California diesel engines



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Fig. Fig. 18: Always may sure the protrusion on the new gasket algins with one of the locating holes on the filter-California diesel engine oil filter assembly

  1. Quickly withdraw the plug and move your hands out of the way. Allow the oil to drain completely in the pan, then install and carefully tighten the drain plug. Do not overtighten the drain plug, otherwise you'll be buying a new pan or a replacement plug for stripped threads.
  2.  

Although some manufacturers have at times recommended changing the oil filter every other oil change, we recommend the filter be replaced each time you change your oil. The added benefit of clean oil is quickly lost if the old filter is clogged. The added protection to your engine far outweighs the few dollars saved by using a old filter

  1. Loosen and remove the oil filter case retaining bolt, then carefully remove the oil filter case.
  2.  
  3. Lift off the rubber gasket, then withdraw the filter element.
  4.  


CAUTION
Be careful not to lose the rubber washer, washer spring, snapring and O-ring from inside the oil filter case when removing the filter element

  1. Position a new rubber gasket on the oil filter element so that the gasket tab aligns with the hole in the element.
  2.  
  3. Install the snapring washer and new rubber washer into the filter case and then install the new filter element and gasket.
  4.  
  5. Coat the rubber gasket with clean engine oil, then install the entire oil filter assembly onto the engine block.
  6.  
  7. Remove the jackstands and carefully lower the vehicle. IMMEDIATELY refill the engine with the correct amount of fresh oil. Refilling it right away will help prevent the possibility of someone accidentally attempting to start a dry engine. Please refer to the Capacities chart at the end of this section.
  8.  
  9. Check the oil level on the dipstick. It is normal for the level to be a bit above the full mark. Start the engine and allow it to idle for a few minutes.
  10.  


CAUTION
Do not run the engine above idle speed until it has built up oil pressure, as indicated when the oil light goes out and/or the gauge moves up (out of the warning zone)

  1. Shut off the engine and allow the oil to flow back to the crankcase for a few minutes, then recheck the oil level. Check around the filter and drain plug for any leaks, and correct as necessary.
  2.  

 
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