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Autopapyrus · Lada Iskra 1.6 16V 106 hp (2026)
https://autopapyrus.com/guides/lada/iskra/cylinder-head-gasket-replacement/
Compiled automatically from service literature and owner experience. Specs are for the typical configuration — check them against your exact car before you start.

Lada Iskra 1.6 16V 106 hp (2026): Cylinder Head Gasket Replacement

The 1.6 16V (106 hp) engine has a timing belt drive and an aluminum cylinder head, which must be checked for flatness after removal. The gasket is replaced when it fails between cylinders or between coolant or oil passages, when oil or coolant leaks at the head joint, or after overheating. The job requires exact timing mark alignment and the correct bolt tightening sequence, so if you lack experience, it is better to leave it to a repair shop.

Difficulty: Hard Time: 8-12 hours (1-2 days, allowing for cooling down and final checks) Steps: 16 Tools: Socket set and ratchet, torque wrench, angle gauge for torque-angle tightening, Torx/12-point socket for the cylinder head bolts, 10/13/17 mm wrenches, screwdrivers, pulley puller or pulley holding tool, straightedge and feeler gauge for checking flatness, plastic scraper, drain pans, marker, clean rags, thread lubricant (household or branded, as specified by the manufacturer).

Part

  • 🔩 Cylinder head gasket set (multi-layer steel (MLS) head gasket), cylinder head bolt set (single-use), valve cover gasket, timing belt kit with tensioner/idler rollers and water pump (recommended to replace at the same time), intake and exhaust manifold gaskets, coolant, engine oil and oil filter, spark plugs (as needed based on condition)

Step by step

16 steps
  1. Let the engine cool completely. Disconnect the negative battery terminal. Remove the engine cover and the underbody skid plate. Drain the coolant and the engine oil into clean containers.
  2. Remove the air filter with its ducts and resonator. Disconnect the sensor and ignition coil connectors and remove the ignition coils. Mark and disconnect the vacuum and fuel lines, relieving the pressure in the fuel rail first. Take photos of how the harnesses and hoses are routed.
  3. Remove the accessory drive belt. Remove the spark plugs. Remove the valve cover and take off its gasket right away.
  4. Set the crankshaft to TDC on cylinder 1, aligning the marks on the crankshaft pulley/sprocket with the marks on the camshaft pulleys. Remove the upper and lower timing belt covers and, if necessary, remove the crankshaft pulley. Mark the position of the timing marks with a marker.
  5. Loosen the tensioner and remove the timing belt. After that, do not turn the camshafts and do not let them shift. If the belt has been in use for more than 60,000 km or 4 years, replace it together with the rollers and the water pump.
  6. Disconnect the coolant hoses from the cylinder head and the thermostat, then remove the exhaust manifold together with the catalytic converter or disconnect it from the head. Remove the intake plenum and manifold (together with the fuel rail and injectors if necessary). Replace all manifold gaskets with new ones.
  7. Remove the cylinder head bolts in the reverse of the tightening sequence, working from the edges toward the center, in several passes so the head does not warp. Lift off the head: if it is stuck, gently rock it, and do not pry at the mating surface with a screwdriver.
  8. Clean the mating surfaces of the block and the head with a plastic scraper, without leaving scratches and without letting debris or oil get into the cylinders or the bolt holes. Wipe out the threaded holes in the block; there must be no oil or coolant in them.
  9. Check the head for flatness with a straightedge and feeler gauge, and inspect the surface for cracks and signs of gasket failure. The allowable warpage is given in the manufacturer's specifications. If the limit is exceeded, the head must be machined or replaced. Also check the block for signs of gasket failure, cracks, and the condition of the cylinder bores.
  10. Install the new head gasket dry, without sealant, with the correct side up (per its markings) and located on the dowel pins. Install the head, lowering it carefully and straight down.
  11. Apply a thin layer of oil to the threads and under the heads of the new bolts (if the manufacturer specifies this) and tighten them in three to four stages, in a spiral pattern from the center outward. Take the exact torque and angle values for this engine from the manufacturer's specifications. For engines of this family, a typical scheme is a preliminary torque of 20-30 N·m (15-22 lb-ft), followed by two angle turns of about 90°, as a rough guide. Do not tighten by feel.
  12. Install the manifolds with new gaskets. Tighten the fasteners evenly, using the torque values from the manufacturer's specifications.
  13. Check that the crankshaft and camshaft marks line up, fit the new timing belt, and set the tension per the manufacturer's specifications. Then turn the crankshaft by hand two full revolutions and confirm that the marks line up exactly. Install the covers and the crankshaft pulley.
  14. Install the valve cover with a new gasket, then the coils, spark plugs, and intake air path, and connect all connectors and hoses. Install the accessory drive belt.
  15. Fill with fresh oil and a new filter, and refill the coolant. Connect the battery. Warm the engine up to operating temperature, bleeding air pockets out of the cooling system (check that the fan works and top up the coolant if needed).
  16. Check for leaks at the head joint, the manifolds, and the hoses. Check the engine control unit for fault codes. Drive 50-100 km gently, then check the coolant and oil levels. Whether the head bolts need re-tightening is determined by the manufacturer's specifications; most modern engines with single-use bolts do not require it.

Common mistakes and warnings

  • The cylinder head bolts are single-use and must not be reused, or the gasket will not hold. Do not turn the camshafts or crankshaft with the timing belt removed unless you are sure the pistons will not hit the valves: on 16-valve engines of this type, valve-to-piston contact is possible if the belt breaks or slips. Check the exact procedure, tightening torques, torque angles, and flatness tolerances for this model and year against the manufacturer's specifications; they are not yet documented in public service materials for the new Iskra. If you lack experience and the right tools, it is better to go to a repair shop, because an assembly error leads to costly engine repair.
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