I am replacing the head gasket on my toyota station wagon which has a 4s-fe engine but I can only find books that cover models above and below. I need the torque specs to bolt the head and the cam shafts down correctly
I have found darned few 'holes' in their coverage.
Auto parts stores carry these and I suspect that even though sealed, the sales people will not give you too hard of a time if you explain you want to insure you are getting what you need.
Haynes is not the same as it was 20 years ago before they were acquired by Chilton but the price/utility ratio is still pretty good.
Mostly I'm annoyed by the move to cheaper paper (newsprint)that is fussier, picks up dirt, tears more easily than the better paper of yore.
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Aug 16, 2015 - Uploaded by World Mechanics
... Stratus / Chrysler Sebring / Pt Cruiser 2.4 Head gasket Install and torque specs We took this video to ... 2004 Chrysler PtCruiser head gasket
Suggest to remove cover and replace gasket with Permatex Gasket Maker Silicone. Fully clean and dry apply a 1/4 bead on cover and bolt down to 20 ft lbs. go around several times to compress silicone. Let silicone cure 30 minutes then refill.
Buy a gasket kit for the upper end. Remove the valve cover intake and exhaust manifolds. Remove the head bolts. Remove head and clean up block from old gasket material. Take the head to a machinist and make sure that it is not warped. If it is warped either replace the head with a new one or have it machined true. Install new gasket and get torque specs with new head bolts and follow torque sequence using the correct torque specs. Clean exhaust, intake and valve cover of old gaskets. install new gaskets and torque according to specifications.
REMOVE 3 BOLTS MAKE SURE YOU HAVE THE RIGHT THREADS.IF BOLTS LOOK OKAY.YOUR BOLTS HOLES HAS DEBRIS OR OIL AND ANTIFREEZE IN THEM.OR YOUR BOLT HOLES IS STRIPPED.YOU HAVE TO REMOVE HEAD TO FIX THE THREAD PROBLEM.IF YOU HAVE NOT MADE THE FINAL TORQUE TO CRUSH AND SEAL HEAD GASKET THE. HEAD GASKET PROBABLY ALRIGHT.YOU HAVE TO LOOSEN HEAD BOLTS IN SEQUENCE BACK OFF A LITTLE AT EACH BOLTS.IF HEAD GASKET LOOK DAMAGE AT BOLT HOLES REPLACE HEAD GASKET.
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.