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1.Follow the steps below to unlock the fuel high-pressure hose connector.
(1)
Insert a flat-tipped screwdriver (6 mm wide and 1 mm thick) into the retainer of the fuel high-pressure hose connector.
(2)
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| caution |
When pushing up the retainer of the fuel high-pressure hose connector, pay attention to avoid damage to the retainer.
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Turn the flat-tipped screwdriver inserted into the retainer by 90 degrees to push up the retainer and unlock the fuel high-pressure hose connector.
2.Remove the fuel high-pressure hose.
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1.Apply a small amount of new engine oil to the O-ring.
2.While turning the fuel injector to right and left, install the O-ring to the fuel injector with care not to damage the O-ring.
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1.Apply a small amount of new engine oil to the O-ring.
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2.Using special tool O-ring installer (MB992106), install the O-ring to the fuel injector with care not to damage the O-ring.
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1.
| caution |
When applying the engine oil, do not let the engine oil get into the fuel delivery pipe inside.
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Apply a small amount of new engine oil to the O-ring.
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2.While turning the fuel injector assembly to right and left, install it to the fuel delivery pipe with care not to damage the O-ring. After installing, check for its smooth rotation. At this time, check that the projection of the fuel injector assembly is in the centre.
3.If the rotation is not smooth, the O-ring may be caught. Remove the fuel injector assembly and check the O-ring for damage. After this, re-insert it to the fuel delivery pipe and check for its smooth rotation.
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Install the fuel injector support to the fuel injector groove and fuel delivery pipe flange, and fix the fuel injector assembly and fuel delivery pipe.
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1.
| caution |
When applying the engine oil, make sure not to allow the engine oil to enter the inlet manifold inside.
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Apply a small amount of new engine oil to the O-ring at the end of fuel injector assembly.
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2.
| caution |
When installing the fuel delivery pipe and fuel injector assembly to the inlet manifold, pay attention to avoid damage to the O-ring at the end of the fuel injector assembly.
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Install the fuel delivery pipe and fuel injector assembly to the inlet manifold.
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3.Install the bracket and injector protector rear.
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4.Loosen the inlet manifold mounting bolts and nuts (Bolts and nuts 1, 2, 3 and 9 shown in the figure).
5.Loosen the inlet manifold stay B and inlet manifold coupling bolts.
6.Loosen the inlet manifold stay mounting bolts.
7.Temporarily tighten the mounting bolts and nuts of the inlet manifold, bracket, fuel delivery pipe and injector protector rear to the specified torque in the order of number shown in the figure.
Tightening torque: 3.5 ± 1.5 N·m
8.Tighten the mounting bolts of the fuel delivery pipe, and the mounting bolts and nuts of the bracket, injector protector rear and inlet manifold to the specified torque in the order of number shown in the figure.
Tightening torque: 20 ± 2 N·m
9.Tighten the inlet manifold stay mounting bolts to the specified torque.
Tightening torque: 20 ± 2 N·m
10.Tighten the inlet manifold stay B and inlet manifold coupling bolts to the specified torque.
Tightening torque: 20 ± 2 N·m
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1.
| caution |
- When pushing in the retainer of the fuel high-pressure hose connector, pay attention to avoid damage to the retainer.
- After the installation of the fuel high-pressure hose, slightly pull the fuel high-pressure hose to check that it is connected securely. At this time, also check that there is approximately 1 mm play.
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Securely insert the fuel delivery pipe stopper into the fuel high-pressure hose connector groove to install the fuel high-pressure hose to the fuel delivery pipe.
2.Push in the retainer of the fuel high-pressure hose connector to lock the fuel high-pressure hose and fuel delivery pipe.
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