Question about Toyota RAV4
Hope this helps, direct from the service manual...
NOTE:Adjust valve clearance with engine cold.
Disconnect power steering fluid reservoir, PCV hoses, cable brackets and control cables for access to valve cover. Disconnect spark plug wires from spark plugs.
Disconnect engine wiring harness protector at rear of timing belt cover for access to valve cover. When disconnecting engine wiring harness protector, remove bolt on intake manifold side of engine first, and then bolt on exhaust manifold side of engine.
Remove nuts, grommets, valve cover and gasket. Note location of grommets for reassembly reference, as grommets must be installed in original location.
Rotate crankshaft clockwise, viewed from timing belt end of engine, so cylinder No. 1 is at TDC on compression stroke and timing mark on crankshaft pulley aligns with "0" mark on timing belt cover. Cylinder No. 1 is front cylinder at timing belt end of engine.
Ensure valve lifters are loose on cylinder No. 1 and tight on cylinder No. 4. If conditions are not as described, rotate crankshaft clockwise one complete revolution (360 degrees).
With cylinder No. 1 at TDC on compression stroke, check valve clearance on specified valves. Perform STEP 1. See Fig. 2 . Using feeler gauge, measure and record valve clearance between valve lifter and camshaft.
To check remaining valves, rotate crankshaft clockwise, viewed from timing belt end of engine, one complete revolution (360 degrees) until cylinder No. 4 cylinder is at TDC on compression stroke. Measure and record valve clearance on specified valves. Perform STEP 2.
Ensure valve clearance is within specification.
Intake Valve.007-.011 (.19-.29)
Exhaust Valve.011-.015 (.29-.38)
(1)Adjust valve clearance with engine cold.
If valve clearance requires adjustment, rotate camshaft so lobe on valve to be adjusted is facing upward, away from valve lifter. Rotate valve lifter so notch on valve lifter is toward spark plug.
Use Valve Clearance Adjuster (SST 09248-55040) to remove adjusting shim. Using SST "A" of valve clearance adjuster, push downward on valve lifter. Place SST "B" between camshaft and valve lifter with side marked with No. 9 at designated position.
Using small screwdriver and magnet, remove adjusting shim. Measure and record thickness of adjusting shim removed. Using measured valve clearance and adjusting shim thickness, select proper replacement adjusting shim. .
Install replacement adjusting shim. Recheck valve clearance. Apply sealant at front and rear valve cover areas on cylinder head. Using NEW gasket, install valve cover.
Install grommets in original location with marking on grommet aligned in designated area. Install and tighten valve cover nuts to specification.
Posted on Apr 29, 2010
In fact not only a Toyota mechanic but any good mechanic can tell if the valves need to be adjusted. Yes they can be adjusted by a DIY person as long as you keep to the manufacturer spec and have a gap filler plus a flat screw driver and a torgue (probably 15mm-17mm but I am not sure about the size). The difference is only in cars with plates instead of normall adjusting system but even that can be done by a simple mechanic. unfortunately I do not have access to Toyota valve gap specs so you need to get them.
Posted on Apr 28, 2010
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Posted on Jan 02, 2017
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