Tighten bolts uniformly in several passes. See figure 1.
Second stage
90°90°90°
Third stage
45°45°45°
Cylinder head screws shank length (maximum)
5.87 in5.87 in149.2 mm
Cylinder head screws shank length (new)
5.78–5.83 in5.78–5.83 in146.8–148.2 mm
Valve cover
7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
expand_moreEngine block
expand_moreConnecting rod bearing
First stage
14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage
90°90°90°
Crankshaft central screws
140.14 lbf⋅ft140.14 lbf⋅ft190 N⋅m
expand_moreFlywheel
First stage
36.14 lbf⋅ft36.14 lbf⋅ft49 N⋅m
Second stage
90°90°90°
expand_moreMain bearing
First stage
29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Second stage
90°90°90°
expand_moreEngine control
Camshaft timing chain slip rail
15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m
Chain tensioner
8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Inlet camshaft wheel
39.83 lbf⋅ft39.83 lbf⋅ft54 N⋅m
Outlet camshaft wheel
39.83 lbf⋅ft39.83 lbf⋅ft54 N⋅m
expand_moreEngine lubrication
Oil drain plug
27.29 lbf⋅ft27.29 lbf⋅ft37 N⋅m
Replace sealing rings.
expand_moreOil filter housing
Oil filter cover
18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace sealing rings.
On the engine block
19.18 lbf⋅ft19.18 lbf⋅ft26 N⋅m
expand_moreOil sump
Oil sump lower part
7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
expand_moreEngine management
Camshaft sensor
7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Crankshaft sensor
7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Knock sensor
14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
expand_moreLambda sensor
With a special tool
29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Otherwise
32.45 lbf⋅ft32.45 lbf⋅ft44 N⋅m
expand_moreEngine mounting
expand_moreEngine bracket
On the engine block
37.62 lbf⋅ft37.62 lbf⋅ft51 N⋅m
expand_moreExhaust system
Exhaust manifold
15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m
Exhaust pipe
31.72 lbf⋅ft31.72 lbf⋅ft43 N⋅m
expand_moreIgnition system
Spark plugs
14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
expand_moreStart system
expand_moreStarter
expand_moreScrews
Cap
27.29 lbf⋅ft27.29 lbf⋅ft37 N⋅m
Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2011 Toyota Prius user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.
Before doing any DIY service please check your insurance policy and Toyota warranty policy for your region. In some regions DIY service may invalidate your warranty.
DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Toyota Prius service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.
Doing basic service for your 2011 Toyota Prius you're not only saving money, but also also improving your technical skills and learning something new.
2011 Toyota Prius generations
In 2011 Toyota offered 3 generations of the Prius. Engine fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.
