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Adjusting the thermal gaps in the mechanism of the valve
Remove the battery cover. Disconnect the negative battery cable. Remove the front wheel and tire (right). Remove the air filter. Remove the ignition coil. Disconnect the breather hose. Remove the cylinder head cover. Remove the drive belt.
| Fig. 2.237. Removing a cover engine front cover: 1 - caps
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Remove the plug of the engine front cover as shown in Figure 2.237.
Manually screw the bolt (M10?�1,25 length of 25 mm or more) in a technological hole on the right side, as shown in Figure 2.238, while it abuts the tensioner arm.
Drown connecting plate chain tensioner through the technological hole on the left side, using a thin flat-blade screwdriver (precision screwdriver).
After that, when the plunger stopper is released, rotate the crank pulley backwards (counterclockwise) (Fig. 2.240).
After loosening the chain tension valve timing at the same time move the tensioner arm to the position shown in Figure 2.241.
NOTE The chain drive timing utaplivaet tensioner arm during rotation of the crankshaft pulley backwards (counterclockwise). |
Tighten the bolt (M10?�1,25) mounted in the front cover to the position where it strikes the inside of the rib on the tensioner arm.
NOTE Fix the tensioner arm set screw, tighten the screw on the six - seven turns, until it reaches the position shown in the picture 2.242 |
Secure the camshaft from turning by holding the hexagon wrench (Fig. 2.243). Remove the bolt of the camshaft sprocket.
| Fig. 2.244. Removing the drive sprocket camshaft on the intake side
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Remove the camshaft sprocket drive from the issue at the assigned timing chain drive mechanism (Fig. 2.244).
| Fig. 2.245. Order of easing of bolts camshaft bearing cap
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Loosen the cover bolts camshaft bearing in 2-3 passes in the order shown in Figure 2.245. Remove the camshaft bearing cap. Remove the camshafts drive the intake and exhaust valves. Remove the valve lifters. Pick the corresponding valve lifter according to the results of the check valve clearances and install it. Tappet to be selected thickness removed tappet + measured valve clearance - standard valve clearance (0.3 mm). Standard valve clearance (with cold engine): 0.27-0.33 mm.
| Fig. 2.246. Align timing marks on the crankshaft pulley and engine cover Predna
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Align the marks on the crankshaft pulley and the engine front cover, and then install the piston cylinder ?��1 in TDC (Fig. 2.246). Install camshafts drive the intake and exhaust valves, the piston cylinder ?��1 should be near TDC compression stroke.
| Fig. 2.247. The provisions of the camshaft bearing caps
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Install the camshaft bearing caps in position, as shown in Figure 2.247, and temporarily tighten the bolts fastening ?��7 ?��1 and camshaft.
| Fig. 2.248. Order of a tightening of bolts of fastening of a cam
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Tighten bolts camshaft in 2-3 passes in the order shown in Figure 2.248. The inhaling moment: 11,3-14,2 Nm.
| Fig. 2.249. Align timing marks on the camshafts on the upper horizontal surface of the cylinder head
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Align the marks on the camshafts drive the intake and exhaust valves so that they form a straight line in the alignment of the upper horizontal surface of the cylinder head (Fig. 2.249). Secure the camshaft from turning by holding the spanner for hexagon. Tighten the bolt of the camshaft sprocket. Torque: 6-60,8 Nm. Remove the bolt (M10?�1,25) holding the tensioner arm. Make sure that the chain valve timing has no slack, and then check the match marks on the camshaft sprocket and crankshaft pulley. Check the time of opening and closing the valve by turning the crankshaft clockwise two turns.
Apply silicone sealant to the plug as shown in Figure 2.250. Place the cover of the front cover of the engine. Torque: 3. 0-5.0 Nm. Install the drive belt. Install the cylinder head cover. Connect the ventilation hose. Install the ignition coil. Install the air cleaner assembly. Install the front wheel (right).
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