Settings and the valve clearances

Oldsmobile Torque Specs - GbodyOlds.com

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Feb 7, 2013 - 2 posts - ‎2 authors Oldsmobile Small-Block Engines Cylinder Head Bolts (1/2in. bolt) 130 ft. lbs. Cylinder Head ... Rocker Arm Pivot Bolt 25 ft. lbs. Rod Bearing ...

Rocker Arms - AutoZone

www.autozone.com/...Cutlass...1987.../Rocker-Arms/_/P-0900...

AutoZoneGM Cutlass RWD 1970-1987 Repair Guide ... To remove the rocker arms from the shaft, the nylon arm retainers must be removed. ... 7: Engine valve system, 260, 307, 350, 403 Oldsmobile built engines ... Unfasten the two bolts that attach the rocker arm pivot to the cylinder head. ... Torque the retaining bolts to 25 ft. lbs.

No one can help you without make, model, year of your car

My manual shows an 8RC for 70 and 71 and an 18RC for the 72-74

18RC valve clearance HOT IN .008 EX .014 cold spec. .007 .013
Cyl head 72-82 Ft Lbs
Rocker caps 12-17 ft lbs
cam bearing clearance .001-.002
cam endplay .0017-.0066
oil tube 11-16 Ft Lbs

i need the head talk settings & valve clearance for tata indica lxi

I have just rebuilt one for our Westerly 21. This is from my Petter 'A' range workshop manual:-
The water cooled engines (AC1W etc.) are:cylinder head nuts: 30NM (22 lbft) except 32.5NM (24 lbft) for the one that also holds the rocker.
Valve clearances are 0.1mm (0.004") COLDReset valve clearance after one hours running since torquing the head.
Retorque head and set valve clearance after initial 20 hours running
I believe Mini-6 refers to the water cooled engines but just in case, the air cooled engines are 27N (20 lbft)

valve clearance is .014 inch for intake and exhaust with engine warm.
head torque it 21 ftlbs, then 44 ftlbs, then loosen all, torque to 89 inchlbs, then to 21ftlbs, then mark and turn the bolts an additional 60 to 65 degrees.
cyl head sub bolts torque 80 to 100 inchlbs.
thanks.

Two things:

1. Make sure you torque the bolts down to the right specification, which is 83 inch pounds (or about 7 ft lbs). Work opposite end of the cover and start with a lower torque first (like 50 in lbs), then go up to 83. It's just a good practice.

2. If that does not work, get a Fel Pro gasket set VS50365R (pic below). What is special about this set is the really thin o-rings there in the middle. Those are the rocker arm tube seals. You need to take the rocker arms off in order to replace them, but this way you're doing a complete job and you probably won't have that issue again. If you don't want to get the whole set again (since you already replaced most of it 3x over), you can probably just go to a honda dealership and pick up the 4 you need.



Here are the seals under the rocker arms:


If you decide to do this yourself, it's a good idea to get a set of feeler gauges so you can properly gap the clearance from the rocker arms to the valves. Intake valves should be gaped to .010 in, and exhaust valves to .012 inches. Also, yes, you can take the rocker arm assembly off without removing the distributor...just take off that one bolt that is in the way. The torque for the bolts holding in the rocker assembly is 9 ft-lbs for the smaller 6x1mm bolts and 16 ft-lbs for the larger 8x1.25mm bolts. Here is the torque sequence...

2.2L Engine & 2.4L Engines
These engines are not equipped with rocker arms. The camshafts directly actuate the valves.

3.1L Engine & 3.4L Engines
When install or connect the check the following:
- Pushrods and the rocker arms. Torque the bolts to 24 ft. lbs. (32 Nm). - Rocker arm cover using a new gasket. Torque the rocker cover bolts to 89 inch lbs. (10 Nm).
- Heater bypass pipe. Torque the screw at the water pump to 106 inch lbs. (12 Nm), the bolt at the cylinder head corner to 18 ft. lbs. (25 Nm) and the nut to 18 ft. lbs. (25 Nm).


About the INTAKE MANIFOLD...
- Intake manifold nuts and bolts and tighten to 89 inch lbs. (10 Nm)
- Pushrods and rocker arms. Torque the bolts to 89 inch lbs. (10 Nm) plus an additional 30 degree turn. - Lower intake manifold. Apply sealant to the threads of the bolts and torque the bolts to 115 inch lbs. (13 Nm).





Exploded view of the upper and lower intake-3.1L & 3.4L engines




Fig. Lower intake manifold tightening sequence-3.1L & 3.4L engines

Hope help.

for cylinder head the torque is : step 1 55 ft-lb, step 2 65 ft-lb, step 3 85 ft-lb. Rocker arm stud nut or bolt is 17 to 23 ft-lb. and valve cover bolt 72 to 108 in-lb.

Get you a new gasket for the rocker cover, make sure you clean the mating surface good,and all traces of old gasket, and silicon etc. make sure you dont overtighten the bolts to the rocker cover. the torque for the rocker cover is 35 in lbs (4nm). as far as vavle clearance it is none adjustable. A clicking valve can indicate worn lifters, sometimes an oil change will quiet down noisy lifters. If noisy lifters persist you would have to service the heads. If you decide to do that yourself you can ask for a procedure on that too later on. Removal of the head is very difficult, because you need to remove a lot of things, and require you to do a timing on the engine.