Torque for the valve cover for a 1992 pick up 22 RE

i have re- torqued and had no problems but i would try not to go past manufacture recommendations, some "dealer" garages have been known to mention that the torque is incorrect voiding warranty or repair

Yes most definatly. Here are the steps, and if you find this info helpful, a vote with the thumbs up would be greatly appreciated for the free advice. These are also known as valve covers.

Disconnect the breather hose, which, depending on the engine in your vehicle, may be attached to the valve cover. Remove the retainer bolts for the valve covers. Depending on which engine you have, you might have as few as two bolts or as many as eight.

2

Lift the valve cover off the engine. If it does not want to come off easily, gently tap it with the rubber hammer. Clean the gasket-mating surfaces using the scraper and a shop rag.

3

Coat the gasket-mating surface of the valve cover with a thin layer of RTV silicone. Install the gasket onto the cover, then press it into the silicone. Install the valve cover.

4

Tighten the bolts to 5 foot-lbs. of torque for the 1.2-liter engine, and 4 foot-lbs. of torque for the 1.6-, 1.8-, .22-, 2.5-, 2.7- and 3.3-liter engines. Reattach the breather hose.

1. Jack up front of vehicle and support on safety stands. Remove left front wheel.
2. Remove alternator/water pump drive belt. Remove water pump pulley.
3. Remove A/C belt if equipped.
4. Remove valve cover.
5. Remove upper timing belt cover.
6. Rotate crankshaft until No. 1 cylinder is at TDC compression stroke and camshaft sprocket timing marks align with edge of cylinder head. "UP" cast on sprocket will be at top when sprocket is in correct position. Crankshaft may be rotated using a socket wrench inserted through access hole in left fender well (engine rotates counterclockwise).
7. Unbolt and remove crank pulley. Remove rubber seal washers from belt tensioner pivot and adjustment bolts protruding through lower belt cover. Remove belt cover retaining bolts and remove cover from below.
8. Remove concave belt retainer from end of crankshaft. If timing belt is to be reused, mark direction of rotation before removing.
9. Loosen belt tensioner pivot and adjustment bolts. Push tensioner away from belt and retighten adjustment bolt to hold tensioner in this position. Remove belt.
10. Insert a suitable tool through cam sprocket and brace against cylinder head. Remove bolt and pull sprocket from camshaft.
11. Without dislodging key, install new sprocket on camshaft. Torque bolt to 22 ftlb (30 Nm).
12. Install new timing belt by starting at crank gear and working it over cam sprocket in clockwise direction. Ensure that timing marks are properly aligned.
13. Release tensioner by loosening adjustment bolt. After tensioner contacts belt, retighten bolt.
14. Rotate engine at least one full turn (counterclockwise) and check that timing marks are aligned. Loosen adjustment bolt and allow tensioner to take out any remaining belt slack. Torque adjustment and pivot bolts to 22 ftlb (30 Nm).
15. Install remaining components in reverse order of removal. Torque fasteners to following values:

TORQUE VALUES

Valve Cover Nuts - 7 ftlb (10 Nm)
Cam Sprocket Bolt - 22 ftlb (30 Nm)
Tensioner Pivot Bolt - 22 ftlb (30 Nm)
Tensioner Adjust Bolt - 22 ftlb (30 Nm)
Belt Cover Bolts - 7 ftlb (10 Nm)
Crank Pulley Bolt - 83 ftlb (115 Nm)
Water Pump Pulley Bolts - 9 ftlb (12 Nm)

The valve is in the valve cover. see picks below and let me know if you have more questions.

6 ft/lbs

if the spark plugs are through the valve covers, then the seals need replacing. valve covers must be torqued correctly. ensure this is done with whomever does the work

Here are some. Hope it helps =D

Timing Marks

Diagram

TORQUE SPECIFICATIONS
Application Ft. Lbs. (N.m)
A/C Compressor Bracket Bolt 37 (50)
Alternator Bracket Adjuster Bolt 16 (22)
Alternator Bracket Bolt 33 (45)
Balance Shaft Pulley Bolt 22 (30)
Camshaft Pulley Bolt
2.2L DOHC 37 (51)
2.2L SOHC & 2.3L 27 (37)
Crankshaft Pulley Bolt 184 (250)
Power Steering Belt Adjuster Nut 11 (15)
Power Steering Pump Bracket Bolt 33 (45)
Power Steering Pump Mounting Bolt 16 (22)
Shift Cable Bracket Bolt 16 (22)
Timing Belt Tension Adjuster 33 (45)
INCH Lbs. (N.m)
Timing Belt Cover Bolt 108 (12)
Valve Cover Nut 90 (10)
Water Pump Bolt 108 (12)

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.

They are 84 inch-lbs. I just got done replacing the gasket on a 92 also.

BMW cylinder torque setting all models

According to my service manual as follows.

Cyl head to engine block (torx e12 M10 bolts)

Stage 1 30nm (22 ft – lb)
Stage 2 + 90 degrees
Stage 3 + 90 degrees

Cyl head to lower timing chain cover 10nm (89in – lb)

The tightening sequence is from inside to outside crossover as normal. Loosening sequence is from outside to inside crossover. Remember to set torque wrench at low setting and work gradually up through the whole sequence until you get the desired torque.