Its in the fsm.
torque and the important sequence.
log in to alldata.com , and see all that. all the time.
SOURCE: blown head gasket on a 1983 toyota tercel
The head bolt torque is 48ft. pounds and the camshaft bolts are 16ft. pounds thats for a 1.5L S.O.H.C motor.
SOURCE: 89 toyota v-6 head bolts
If these are the instructions of the head bolt manufacturer then this is correct. These are torque to yield bolts and require these 90 degree turns to stretch the bolts to the desired length. This causes a spring tension and will keep your head gasket from leaking.
SOURCE: 1992 Toyota Previa van,Oil dripping onto exhaust manifold, replace head gasket? need a free manual!
The toyota previa uses a formed silicone gasket for the valve cover and the cover is held in place by metric shoulder bolts ( 10mm). The valve gasket leaks because you can't get enough preload on the bolts to re-seat the old gasket when it gets old and shrinks. The shoulder bolts only allow you to tighten the gasket enough to seat the shoulder on the bolt. If you continue to torque down the suspected bolts, you will snap the bolt off ( don't ask me how I know this ). You can either 1.)replace the old gasket with a new one or 2.) remove the existing bolts around the leak area and put in new metric bolts that do not have a shoulder. You may want to put in a small sleeve into the existing bolt hole but shorter than the thickness of the valve cover to account for the smaller diameter bolt. You can now torque down the bolt and get enough preload to seal the valve cover without removing the old gasket. Make sure you use a torque wrench ( in-lbs) or be very careful not to snap these small valve cover bolts.
SOURCE: 2002 toyota hiace van front wiper reservoir refill point
I have the 1990 model and just so happened to stumble on its unusual location today as I was replacing the door hinges. On the passenger side open the door and look above the step, there should be a little plastic cap with the wiper icon on it. hope this helps!
SOURCE: valve clearance 1995 toyota hiace diesel van 3l
normally .010"hot inlet and .012" hot exhaust
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