OEM Toyota Cylinder Head Gasket

Toyota Cylinder Head Gasket Parts Questions & Experts Answers

• Gasket, Cylinder Head
  11115-50080
  Q: How to replace Cylinder Head Gasket No. 2 on Toyota 4Runner?

  A: Start the replacement of Cylinder Head Gasket No. 2 by stopping gasoline from leaking before removing the chain sub-assembly then the exhaust front pipe assembly No. 2 together with manifold stay No. 2 using the 3 bolts. The replacement requires disconnecting the A/F sensor connector and removing the 6 nuts with the exhaust manifold, along with its gasket from the exhaust manifold sub-assembly LH. Disconnection of fuel pipe sub-assemblies No. 1 and No. 2 starts the procedure before disconnecting the intake manifold, water by-pass joint RR, and chain vibration damper No. 1 by removing two of its bolts. Start by lowering the chain tensioner No. 3 to push it down and follow by inserting a 1.0 mm pin for fixation before using a wrench to hold the hexagonal camshaft portion to remove two bolts for camshaft timing gear together with the timing chain No. 2 while being mindful not to damage the cylinder head and valve lifter. The procedure starts by taking out the chain tensioner assembly No. 3 and requiring careful procedures to remove the camshafts by keeping them stable and avoiding damage. To extract the cylinder head LH you should disconnect the ground cable then loosen and eliminate the cylinder head bolts according to a specified order while lifting the cylinder head away from its dowel placement on the cylinder block but maintaining contact surface integrity. I should inspect the cylinder head set bolt using a vernier caliper to check that its outside diameter stays within the required specifications while removing Cylinder Head Gasket No. 2. To install new cylinder head gasket No. 2 you must first clean the surfaces before applying a continuous bead of seal packing (Part No. 08826-00080 or equivalent). Installation of the gasket should occur within 3 minutes then the bolt tightening must finish within 15 minutes. Install the cylinder head on top of the gasket while applying engine oil to all 8 bolts. Follow the torque guideline by tightening in two steps before painting the front sides of bolts. Then proceed to retighten at an angle of 180 degrees. The repair process requires installation of two additional cylinder head bolts to which engineer oil should be applied followed by torque specification and ground cable reinstallation. Install the camshafts keeping them level then correctly position the crankshaft and apply new engine oil before installing the 8 bearing caps which require tightening bolt torque at specified values. The chain tensioner assembly No. 3 needs to be fixated with a pin before installing the camshaft timing gears and No. 2 chain (LH bank) with an accurate mark alignment followed by bolt tightening at the specified torque values. The engine service requires chaining vibration damper No. 1 alongside water by-pass joint RR and intake manifold and fuel pipe sub-assemblies No. 1 and No. 2 reattachment. Place exhaust manifold sub-assembly LH onto the engine block while using a new gasket then fasten all nuts to the mentioned torque specifications. The repair ends with the installation of manifold stay No. 2 followed by exhaust front pipe assembly No. 2 and the chain sub-assembly then comes a leak check and a speed idle check with tool 09843-18030 as well as compression and CO/HC evaluations.
• Head Gasket
  11115-22050
  Q: How to replace the cylinder head gasket on Toyota Corolla?

  A: Start by preventing gasoline from dripping during the cylinder head gasket replacement process so remove first the engine under cover on the right-hand side and drain the coolant. Start by removing the front wheel RH together with cylinder head cover No.2 through the process of unfastening 2 nuts and 2 clips and extracting the cover itself. Begin by removing the air cleaner hose thanks to 2 loosen clamp bolts then detaching the accelerator control cable assembly from its bracket by nut removal. The water by-pass hoses from the throttle body must be detached followed by EFI fuel pipe clamp separation and release of the fuel tube sub-assembly with Special Service Tool: 09268-21010. Detach the radiator hose inlet along with the heater inlet water hose from the cylinder head. Unwind the fan and generator V belt after loosening the V-ribbed belt tensioner but keep the hose attached to the vane pump assembly before separation. Proceed with removing the generator assembly and exhaust pipe assembly front section by unfastening both bolts while also dispatching the gasket. To remove the engine mounting insulator sub-assembly RH the technician first positions the PS oil pump reservoir out of way before installing a wooden block between the jack and engine then removes 4 bolts combined with 2 nuts. You must first remove the 5 clamps and 4 ignition coil connectors from the engine wire for disconnecting it prior to removing the ignition coil assembly. An operator can remove the cylinder head cover sub-assembly by disassembling all 9 bolts together with 2 seal washers and 2 nuts and 3 clamp brackets and also removing the ventilation hoses from the cylinder head cover. Place No. 1 cylinder at TDC compression position when both the crankshaft pulley timing mark "0" matches with the groove and both camshaft timing sprocket marks are in alignment. Extract the crankshaft pulley with Special Service Tool: 09960-10010 (09962-01000, 09963-01000) and proceed with elimination of the V-ribbed belt tensioner assembly, water pump assembly, transverse engine mounting bracket. Incomplete rotations of the crankshaft should occur without the chain tensioner when you remove the crank position sensor and chain tensioner assembly No.1. On the front of the engine remove the sequence of sub-assemblies which includes the timing chain or belt cover assembly and timing gear cover oil seal alongside crankshaft position sensor plate No.1 chain tensioner slipper and chain vibration damper No.1. Seize the timing chain while keeping it attached to the crankshaft timing gear while also safeguarding the engine configuration and obviating valve-piston interference. First disconnect all water and vacuum hoses from the intake manifold then remove both the oil level gauge sub-assembly and guide. Begin by separating the water by-pass pipe No.1 while using a sequence for loosening and removing the 19 cap bolts to extract the camshafts. First disconnect the camshaft timing oil control valve assembly with the manifold stay before you loose the cylinder head sub-assembly by sequential bolt removal of the 10 cylinder head bolts. Use the new cylinder head gasket by placing the Lot No. stamp at the upper section while maintaining correct installation orientation. Use the accepted specifications to measure the set bolts of the cylinder head before replacing any elements exceeding maximum length recommendations. Secure the cylinder head sub-assembly after applying engine oil to bolts and torquing them in sequence to 49 Nm (500 kgf-cm, 36 ft. lbs.) with front bolt marking while retightening at a 90-degree angle. Sequence all installations by first placing the manifold stay followed by the camshaft timing oil control valve assembly and then the camshafts to the specified torque values. Reconnect all hoses after installation of the water by-pass pipe No.1 followed by the oil level gauge guide and intake manifold which use new gaskets. Set the first cylinder to TDC/compression alignment once again while installing the timing chain along with the chain vibration damper which will precede installation of the chain tensioner slipper and crankshaft position sensor plate number 1. Mount the timing gear cover oil seal after ensuring its surface remains clean before putting in place the new timing chain or belt cover assembly while using appropriate seal packing. The installation of chain tensioner assembly must be combined with crank position sensor and transverse engine mounting bracket alongside water pump assembly and V-ribbed belt tensioner assembly which requires specific torque values during the procedure. The crankshaft pulley must receive installation according to torque requirements along with shared installation duties of the ignition coil assembly and engine wire sub-assemblies after cylinder head cover sub-assembly and seal packing insertion. The final step includes engine mounting insulator sub-assembly RH installation alongside front exhaust pipe assembly and vane pump assembly, generator assembly, and cylinder head cover No.2 where all components need proper torque specification. Physically return the right-hand front wheel followed by adding engine coolant while performing inspections for engine compression together with CO/HC testing and ignition timing checks as well as searching for leaks throughout the engine coolant system and oil.
• Head Gasket
  11115-31031
  Q: How to Remove the Cylinder Head Gasket on Toyota Tundra?

  A: The 1GR-FE engine cylinder head gasket removal starts by separating the engine assembly from its vehicle assembly. You must remove the ignition coil assembly followed by spark plug together with the VVT sensor and the camshaft timing oil control valve assembly. The maintenance procedure involves removing both right and left cylinder head cover sub-assemblies along with the engine oil level dipstick guide, heater water pipe sub-assembly, rear water by-pass joint, oil control valve filter and its components which include V-ribbed belt tensioner assembly, No. 2 idler pulley sub-assembly, No. 1 idler pulley sub-assembly, crankshaft pulley, No. 2 oil pan sub-assembly, oil strainer sub-assembly, and oil pan sub-assembly. The maintenance technician detaches the No. 2 oil cooler hose and the oil cooler hose before separating the water inlet housing and the oil filter bracket sub-assembly along with timing chain cover sub-assembly. The mechanic must execute the following steps: first remove the front crankshaft oil seal followed by setting No. 1 cylinder to TDC/compression then they must remove the No. 1 chain tensioner assembly, chain tensioner slipper, No. 1 idle gear shaft and all components including the No. 2 chain vibration damper, No. 1 chain, No. 1 chain vibration damper and camshaft timing gears and No. 2 chain. During the removal process maintain a level position of camshafts while removing both the No. 3 chain tensioner assembly and both the No. 3 camshaft and No. 4 camshaft. First step is to loosen then remove the 16 bearing cap bolts installed in proper sequence followed by extraction of 8 bearing caps and 2 camshafts. The left side cylinder head sub-assembly removal requires following these steps: loosening the 2 cylinder head bolts while removing the 8 cylinder head bolts with plate washers in order; then lifting the cylinder head from the dowels on the cylinder block by placing it on wooden blocks. Washers securing the contact surfaces must be handled with care while the No. 2 cylinder head gasket needs to be taken out.