REPAIR
CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. REPAIR INTAKE VALVE SEAT
NOTICE:
(a) Using a 45° cutter, resurface the intake valve seat so that the intake valve seat width is more than the standard. |
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(b) Using 30° and 60° cutters, correct the intake valve seat so that the intake valve contacts the entire circumference of the intake valve seat. The contact should be in the center of the intake valve seat, and the intake valve seat width should be as specified around the entire circumference of the intake valve seat. Standard Width: 1.1 to 1.5 mm (0.0433 to 0.0591 in.) |
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(c) Hand lap the intake valve and intake valve seat with an abrasive compound.
(d) Check the intake valve seating position.
2. REPAIR EXHAUST VALVE SEAT
NOTICE:
(a) Using a 45° cutter, resurface the exhaust valve seat so that the exhaust valve seat width is more than the standard. |
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(b) Using 30° and 75° cutters, correct the exhaust valve seat so that the exhaust valve contacts the entire circumference of the exhaust valve seat. The contact should be in the center of the exhaust valve seat, and the exhaust valve seat width should be as specified around the entire circumference of the exhaust valve seat. Standard Width: 1.1 to 1.5 mm (0.0433 to 0.0591 in.) |
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(c) Hand lap the exhaust valve and exhaust valve seat with an abrasive compound.
(d) Check the exhaust valve seating position.
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Can Communication System: Certification ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Certification ECU Communication Stop Mode Either condition is met:
"Certification (Smart)" is not displayed on the CAN Bus Check screen of the Techstream.
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Communication system DTCs (DTCs that start with U) that corresp ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Air Conditioning System: Room Temperature Sensor Circuit (B1411/11)
DESCRIPTION The cooler (room temp. sensor) thermistor is installed in the instrument panel to detect the cabin temperature, which is used to control the air conditioning system. The resistance of the cooler (room temp. sensor) thermistor changes in accordance with the cabin temperature. As the tempe ...