Dismantling
1. Disconnect "negative" battery terminal.
2. Remove the timing belt.
KV6 ENGINE - MODIFICATION K, Left cylinder head camshafts, Timing belt.
3. Remove the rear timing belt of the left cylinder head.
KV6 ENGINE - MODIFICATION K, Left cylinder head camshafts, Left rear timing belt.
4. Remove the valve cover gasket of the left cylinder head.
KV6 ENGINE - VERSION K, Left cylinder head camshafts, Left cylinder head valve cover gasket: up to May 2003.
5. Turn away 4 bolts of fastening of a back cover of a forward timing belt to a head of cylinders and remove a back cover.
6. Turn away 2 bolts of fastening of a back cover of a back timing belt to a head of cylinders and remove a cover.
7. Gradually, in the sequence shown in the figure, loosen the 22 camshaft cover bolts so that the valve springs are completely unloaded.
8. Release the camshaft cover from the guide pins and remove it from the cylinder head.
9. Remove the camshafts and discard the camshaft seals.
10. Using a magnet, remove the 12 hydraulic lifters from the cylinder head.
CAUTION: The hydraulic lifters must be laid out in the order in which they were installed on the cylinder head. The maximum possible cleanliness must be observed when working with hydraulic lifters. Failure to comply with these requirements may result in engine failure.
11. Wipe the camshafts and their beds in the cover and in the cylinder head.
12. Check the condition of the camshafts. If they are scratched, dented, or excessively worn, replace the camshafts.
NOTE: Camshafts are color coded: ORANGE - intake camshaft, BLUE - exhaust camshaft
Installation
1. Wipe the hydraulic lifters thoroughly and lubricate them with clean engine oil. Install the hydraulic lifters in the cylinder head, in their original places.
2. Check that the mating surfaces of the cylinder head and camshaft covers are clean and dry.
3. Lubricate the camshafts with clean engine oil.
4. Lay the camshafts in the cylinder head with the gear slots facing the middle of the engine as shown.
ATTENTION: Check that the shafts are in place: ORANGE - intake, BLUE - exhaust.
5. Apply continuous, thin bead of STC 4600 Sealant at the locations shown in the illustration. Spread the sealant in a thin layer over the surface with a roller trowel.
ATTENTION: Do not let the sealant get into the oil channels and grooves, assemble it no later than 20 minutes after applying the sealant.
6. Install the camshaft cover, screw in and gradually tighten the bolts to 10 Nm in the sequence shown in the figure.
7. Bearing in mind that the front oil seals are black and the rear oil seals are red, install new oil seals using LRT-12-203 and LRT-12-148A.
CAUTION: The seals must be installed dry. Do not use tool LRT-12-148 to install oil seals.
8. Clean the timing belt rear cover bolts and apply STC 50552 sealant to the first three threads.
9. Establish back covers of belts on a head of cylinders, screw in bolts and tighten them the moment.
10. Install the left valve cover gasket.
KV6 ENGINE - VERSION K, Left cylinder head camshafts, Left cylinder head valve cover gasket: up to May 2003.
11. Install the timing belt.
KV6 ENGINE - MODIFICATION K, Left cylinder head camshafts, Timing belt.
12. Install the rear timing belt of the left cylinder head.
KV6 ENGINE - MODIFICATION K, Left cylinder head camshafts, Left rear timing belt.
13. Add oil to the engine.
MAINTENANCE, MAINTENANCE, Engine oil and oil filter - KV6.
14. Attach "negative" battery terminal.
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