spark plugs replace Hyundai Coupe 2003 User Guide

OWNER MAINTENANCE
6-8 CAUTION: Sparking plugs must only be cleaned usingpurpose designed equipment. Wire brushingmay damage the centre electrode insulatorcausing mis-firing to occur. Only the correctgrade of sparking plug should be used. Useof an incorrect grade may result in seriousengine damage.
3. With the heater temperature control set to the
"HOT" position, remove the radiator cap andopen the radiator drain tap.
4. When the engine coolant has drained com- pletely, close the drain tap ensuring that thisis not over tightened.
5. Prepare a suitable quantity of new engine coolant (refer to section 9) and pour this intothe radiator.
6. Start the engine with the radiator cap still removed and continue to add coolant as thelevel decreases as air is expelled from thesystem. When the level remains constant,replace the radiator cap and replenish thecoolant reservoir.
7. When the engine is hot, check to ensure that no coolant leaks are present.
WARNING:The cooling fan is controlled by engine cool-ant temperature and may sometimes operateeven when the engine is not running. Useextreme caution when working near the bladesof the cooling fan so that you are not injuredby a rotating fan blade. As the engine coolanttemperature decreases, the fan will automati-cally shut off. This is a normal condition. G060B02GK-EAT SPARKING PLUG REPLACEMENT This operation should only be performed when the engine is cold.
1. Remove the engine rocker cover.NOTE: It is recommended that the spark plug forEngine 2.7L should be changed by an autho-rized Hyundai dealer.
2. Remove plug lead from the sparking plug to
be replaced, pulling the lead by the rubber cap. (Pulling the lead may damage the carbonconductor).
3. Clean around the base of the plug to be removed, and install the plug socket ensuringthat the ceramic insulator does not becomedamaged. Turn the socket counterclockwiseto remove the plug.
YN60100A0.039 ~ 0.043 in. (1.0 ~ 1.1 mm)
0.039 ~ 0.043 in. (1.0 ~ 1.1 mm)
DOHC V6
HGK256

OWNER MAINTENANCE 6-9
SG070A1-E AIR CLEANER ELEMENT REPLACE- MENT
Prior to installing a sparking plug, the gap be- tween the centre and outer electrodes must bechecked and adjusted as necessary.Adjustment is facilitated by bending the outerelectrode towards or away from the centre elec-trode. Under no circumstances should attemptsbe made to adjust the position of the centreelectrode.
4. Insert the sparking plug into the cylinder head and using a suitable plug socket, slowly ratate the sparking plug, until the plug contacts theseating area. Tighten the plug with the plugsocket by a further 1/2 to 3/4 of a turn only. 5. Replace the plug lead ensuring that the cap is
pushed firmly into place. Confirm that the capis correctly seated by lightly pulling upon it.
Recommended Spark Plugs To replace the air cleaner element, remove theair intake ducting from the air flow sensor bodyand unfasten the spring clips holding the air flowsensor top to the body. Lift out the air flow sensorfollowed by the air cleaner element. Replace-ment of the element is the reverse of the above. CAUTION:
o The air flow sensor is a precision engi-
neered electronic measuring device andtherefore care should be exercised that theair flow sensor is not damaged duringreplacement of the element.
o When removing the air cleaner element, be careful that dust or dirt does not enter theair intake. These may result in damage tothe air cleaner element.
NOTE: When replacing the spark plugs, genuine Hyundai replacement parts are recom-mended.
RC10YC4(CHAMPION) BKR5ES-11(NGK) RC10PYPB4(CHAMPION) PFR5N-11(NGK)1.6/2.0L
2.7L*
* Platinum coated.
HGK213
HGK258HGK257