engine oil MAZDA MX-5 1994 Service Manual

D OIL PRESSURE OIL PRESSURE PREPARATION SST 05UODX-008 INSPECTION 1. Remove the oil pressure switch. pressure 2. Screw the SST into the oil pressure switch installation hole. 3. Warm up the engine to normal operating temperature. 4. Run the engine at 1,000 rpm and 3,000 rpm, and note the gauge reading. For inspection of oil pressure Oil pressure: 9kl96 kPa (1.0-2.0 kgf/cm2,15-28 psik1,000 rpm 295492 kPa (3.0-4.0 kgf/cm2, 43-66 psi)-3,000 rpm 5. If the pressure is not as specified, check for the cause and repair. (Refer to Troubleshooting Guide.) 6. Remove the SST and install the oil pressure switch. Tightening torque: 12-17 N-m (1.2-1.8 kgf-m, 9-13 ft-lbf) 45UODX-007 Gartner Banana

ENGINE OIL D ENGINE OIL INSPECTION 1. Be sure the vehicle is on level ground. 2. Warm up the engine to normal operating temperature and stop it. 3. Wait for five minutes. 4. Remove the dipstick and check the oil level and condi- tion. 5. Add or replace oil as necessary. Note The distance between the L and F marks on the dip- stick represents 0.8 L (0.85 US qt, 0.70 Imp qt}. REPLACEMENT Warning When the engine and the oil are hot, they can badly burn. Don't burn yourself with either. 1. Warm up the engine to normal operating temperature and stop it. 2. Remove the oil filler cap and the oil drain plug. 3. Drain the oil into a container. 4. Install a new gasket and the drain plug. Tightening torque: 3041 N-m 13.0-4.2 kgf.m, 22-30 ft-lbf) 5. Refill the engine with the specified type and amount of engine oil. Oil replacement: 3.6 L 13.8 US qt, 3.2 Imp qt) 6. Refit the oil filler cap. 7. Run the engine and check for leaks. 8. Check the oil level and add oil if necessary. Gartner Banana

D OIL FILTER OIL FILTER REPLACEMENT 1. Remove the oil filter with a wrench. ii 2. Use a clean rag to wipe off the mounting surface on the engine. 3. Apply a small amount of clean engine oil to the rubber seal of the new filter. 4. Hand tightening type (Numbers printed on filter) Tighten the filter 314 of a turn by hand after it contacts the cylinder block Example: When the oil filter contacts the cylinder block at "l", turn it 314 of a turn further to "4". Filter wrench tightening type (No numbers printed on fil- ter) Tighten the filter 1 and 116 turns with the filter wrench af- ter it contacts the cylinder block. Gartner Banana

OIL COOLER D OIL COOLER REMOVAL I INSTALLATION 1. Disconnect the negative battery cable. 2. Drain the engine oil and engine coolant. (Refer to page D-5, Section E.) 3. Remove in the order shown in the figure. 4. Install in the reverse order of removal. INSTALL OIL COOLER WITH IDENTIFICATION MARK (BLACK) FACING UP A OIL FILTER^ RUBBER I 3049 (3.0--4.0,22-28) REPLACE Nm {kgtm, ft4bf) 1. Oil filter 3. Oil cooler Replacement . . . . . . . . . . . . . . . Page D-6 4. O-ring 2. Water hose Steps After Installation 1. Connect the negative battery cable. 2. Fill with the specified amount and type of engine oil and engine coolant. (Refer to page D-5, Section E.) 3. Start the engine and check for leaks. 4. Check the oil level and add oil if necessary. 5. Recheck the engine coolant levels. Gartner Banana

D OIL PAN OIL PAN REMOVAL / INSTALLATION 1. Disconnect the negative battery cable. 2. Drain the engine oil. (Refer to page D-5.) 3. Remove the undercover. 4. Remove in the order shown in the figure, referring to Removal Note. 5. Install in the reverse order of removal, referring to Installation Note. 94--117 (9.5-11.9,69-86) 57-78 (5.8--8.0,42-57) 69-83 {7.0-8.5,51-61) GASKET, REPLAC 7.9--10.7 Nm {60-110 kgfan, 70-95 O-RING, REPLACE 'If 64-49 (6.!%9.1,4&65) 7.9-10.7 N.m (80-110 kgf.crn, 70-95 indbf] 1. Dipstick and pipe 5. Oil pan ............. 2. Intermediate shaft Removal Note page D- 9 ........... .......... Removal / lnstllation section N Installation Note page D-10 3. Engine mount nut 6. Oil strainer 7. Oil baffle ,' ............. Removal Note page D- 9 ............. 4. Crossmember installation bolt and nut Removal Note page D- 9 ............. ........... Removal Note page D- 9 Installation Note page D- 9 Gartner Banana

OIL PAN D RIGHT . . LEFT Removal Note Engine mount nut 1. Loosen the oil pan mounting bolts. 2. Remove the engine mounting nuts. 3. Lift the engine slightly with a hoist. Crossmember installation bolt and nut 1. Support the crossmember with a transmission jack. 2. Remove the crossmember installation bolts and nuts. 3. Separate the steering intermediate shaft from the pinion shaft. 4. Lower the crossmember until the clearance between the oil pan and the steering gear housing exceeds approx. 100mm (3.94 in). Oil pan 1. Remove the oil pan mounting bolts. Caution Pry tools can easily scratch the cylinder block and the oil pan contact surfaces. Prying off the oild pan can also easily bend the oil pan flange. Refer to the following instructions before remov- ing the oil pan. 2. Insert a screwdriver only at the points shown in the fig- ure. 3. Remove the oil pan. Oil baffle 1. Insert a screwdriver between the cylinder block and the oil baffle to separate them. 2. Remove the oil baffle. Installation Note Oil baffle 1. Remove all foreign material from the contact surfaces. 2. Apply a continuous bead of silicone sealant to the oil baffle along the inside of the bolt holes, and install within five minutes. Gartner Banana

OIL PAN NOTCH NOTCH I 05UODX-209 Steps After Installation 1. Install the undercover. Oil pan 1. Remove all foreign material from the contact surfaces. 2. Apply silicone sealant to the shaded areas shown in the figure. 3. Install new gaskets onto the oil pump body and the rear cover with the projections in the notches shown in the fig- ure. 4. Apply a continuous bead of silicone sealant to the oil pan along the inside of the bolt holes and overlap the ends. 5. Install the oil pan with five minutes. Tightening torque 0: 7.9-10.7 N.m (80-110 kgf-cm, 70-95 in4bf) @: 64-49 N.m (6.5-9.1 kgf-m, 48-45 ft-lbf) 2. Connect the negative battery cable. 3. Fill with the specified amount and type of engine oil. (Refer to page D-5.) 4. Start the engine and check for leaks. 5. Check the oil level and add oil if necessary. Gartner Banana

OIL PUMP D Apply a small amount of clean engine oil to the lip of a new oil seal. Push the oil seal slightly in by hand. Using a pipe, press the oil seal in evenly until it is flush with the edge of the oil pump body. Note Oil seal outer diameter: 50.5mm {I .99 in) Oil seal inner diameter: 36.5mm (1.44 in} I I Assembly Note Oil seal Gartner Banana

ENGINE COOLANT ENGINE COOLANT PREPARATION SST INSPECTION 49 9200 145 Adapter set, radiator cap tester Warning Removing the radiator cap or the coolant drain plug while the engine is running, or when the engine and radiator are hot is dangerous. Scalding coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system. Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while the pressure escapes. When you're sure all the pressure is gone, press down on the cap - still using a cloth -turn it, andremove it. For inspection of cooling system pressure Coolant Level (Engine Cold) 1. Verify that the coolant level is near the radiator filler neck. 2. Verify that the coolant level in the coolant reservoir is be- tween the FULL and LOW marks. Add coolant if neces- sary. u Note The distance between the LOW and FULL marks on the coolant reservoir represents 4.5 L (4.8 US qt, 4.0 Imp qt). Coolant Quality 1. Verify that there is no buildup of rust or scale around the radiator cap or radiator filler neck. 2. Verify that coolant is free of oil. Replace the coolant if necessary. 49 9200 146 Adapter A (Part of 49 9200 145) Coolant Leakage 1. Connect a radiator tester (commercially available) and the SST to the radiator filler neck. 2. Apply 103 kPa (1.05 kgf/cm2, 14.9 psi} pressure to the system. 3. Verify that the pressure is held. If not, check for coolant leakage. For inspection of cooling system pressure / V Caution Apply more than 103 kPa (1.05 kgf/cm2, 14.9 psi) can damage the hoses, fittings, and other compo- nents, and cause leaks. Gartner Banana

WATER PUMP WATER PUMP REMOVAL I INSTALLATION 1. Disconnect the negative battery cable. 2. Drain the engine coolant. (Refer to page E-5 for WARNING and procedure) 3. Remove in the order shown in the figure, referring to Removal Note. 4. Install in the reverse order of removal. 1. Timing belt 4. Water pump Service . . . . . . . . . . . . . . . . . . . . . Section B Inspect for cracks, damaged mounting sur- 2. PIS oil pump face, bearing condition, and leakage. Removal Note . . . . . . . . . . . . . . page E-1 1 If the water pump is damage, replace it. 3. Water hose Do not repair it. 5. Water inlet pipe Gartner Banana