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How do i know when the valve is tight enough?

I hace the heads installed push rods in need to know how thow much to tighten down

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  • Cars & Trucks Master
  • 3,961 Answers

What make and model?

Posted on Nov 18, 2014


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: '89 2.9l, 194,000 mile Ranger

Stuck Valve.Or just about ready to stick.

Posted on Nov 02, 2008

  • 116 Answers

SOURCE: on the 92 chevy lumina eurosport 3.1 push rods on

the euro sport is the same as the lumina base just with a body kit, stiffer suspension, and dual exhaust.

but on the 3.1 engine the pushrods are all the same length, but depending on the stroke each cylinder is on the pushrod may be in a different position.

you are assuming that every pushrod should be in the rest state. that is not true. if the cylinder you are installing the pushrod for is on the intake stroke when you install the intake valve pushrod and tighten the rocker arm nut the valve will procede to open like it should be open for the intake stroke.

this is normal and its nothing wrong with it.

Posted on Apr 11, 2009

  • 36 Answers

SOURCE: how tight to tighten valve cover

I highly recommend you buy a Hanes/Chilton manual for your make and model of car. The manual will tell you inch pounds and torque sequence for tightening the vale cover back on. Usually the sequence works from the center and works it way to the outside bolts. Please rate this reply if you found this helpful.

Posted on May 29, 2009

  • 4521 Answers

SOURCE: I need to know how tight to tighten the head bolts

do u feel comfortable doin this-u need a repair manual and a torque rench-u must be able to read ft lbs on the tool and follow the book or else u can warp the head-let me know

Posted on Jan 22, 2010

  • 151 Answers

SOURCE: how tight should my valve cover be tighten downed

All you have to do is get a 3/8 ratchet or a wrench and just snug the bolts up to about 10 ft.lbs.of torque then go back and do all the bolts again to about 15 ft.lbs. of torque and you should be good to go.Basically 15ft.lbs. is just using one hand and snug it down with light pull of ratchet.

Posted on Apr 21, 2010

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Install push rods on a 6v71 detroit diesel

Your talking valves , not rods. Yes they are a pain. The valves have to be flat and tight against the head, then compress the spring and cap to get the keepers in. I modified large welding clamps to do this.

May 02, 2016 | Cars & Trucks

1 Answer

I'm having problems getting the rocker arm assemble to go back on and tighten down with out locking the cam where it will not turn at all and that is with bolts finger tight

When the rocker arm assembly is tightened down the lobes on the cam will be pushing the lifters which will put force on the push rods which will rotate the rockers which will open the valves against the valve springs. And,,,
That will create frictional resistance in the entire system, And,,,
Any rotation of the cam will require valve springs to compress.
I know that my old fingers would not contemplate trying to rotate it.

Jan 07, 2016 | Cars & Trucks

1 Answer

Blown Head Gasket repair - How do I set the valves correctly? DO I need to turn the crank shaft or just tighten to remove LASH?

what type of engine are you working on. On GM small blocks you will need to turn the crank to zero on the timing tab, which will bring #1 piston to the top ( you can remove #1 plug and verify #1 piston is at the top) Then you will need to turn the rocker arm nut on the intake valves until the push rod is just finger tight, (turn the push rod as you are tightening the nut) and then turn it 3/4 of a turn. once you have done the intake valves you need to rotate the crank 180 degrees to bring up the exhaust valves and do the same procedure to them. If it is the valve lash it should start. Hope this helps, this will probably work on most cars.

Mar 26, 2015 | Cars & Trucks

1 Answer

I need to know the torque specs for the head gasket for a 99 2.2 pontiac sunfire

Install cylinder head bolts finger-tight. New cylinder head bolts are recommended due to stretch of the old bolts.
Tighten bolts in sequence, tighten the long bolts to 46 ft. lbs. (63 Nm) plue 90 degrees. Tighten the short bolts to 43 ft. lbs. (58 Nm)

Install pushrode and rocker arms and rocker arm nuts. Tighten nuts to 22 ft. lbs. (30 Nm).

Install valve cover and tighten bolts to 89 inch lbs. (10 Nm).

Apr 05, 2011 | 1999 Pontiac Sunfire

1 Answer

2001 grand cherokee 4.0l valve rocker torque specs

5 million made.
it's in the fsm book
posted here over 300 times.
are you asking , how to set rockers ?

chapter 9 page 27
------------------text fsm---------------------
Inspect the pivot surface area of each rocker arm.
Replace any that are scuffed, pitted, cracked or
excessively worn.
Inspect the valve stem tip contact surface of each
rocker arm and replace any rocker arm that is deeply
Inspect each push rod end for excessive wear and
replace as required. If any push rod is excessively
worn because of lack of oil, replace it and inspect the
corresponding hydraulic tappet for excessive wear.
Inspect the push rods for straightness by rolling
them on a flat surface or by shining a light between
the push rod and the flat surface.
A wear pattern along the length of the push rod is
not normal. Inspect the engine cylinder head for
obstruction if this condition exists.
NOTE: This procedure can be done with the engine
in or out of the vehicle.
(1) Lubricate the ball ends of the push rods with
Mopart Engine Oil Supplement, or equivalent and
install push rods in their original locations. Ensure
that the bottom end of each push rod is centered in
the tappet plunger cap seat.
(2) Using Mopart Engine Oil Supplement, or
equivalent, lubricate the area of the rocker arm that
the pivot contacts. Install rocker arms, pivots and
bridge above each cylinder in their originally position
(Fig. 23).
(3) Loosely install the capscrews through each
(4) At each bridge, tighten the capscrews alternately,
one turn at a time, to avoid damaging the
bridge. Tighten the capscrews to 28 N·m (21 ft. lbs.)
(5) Install the engine cylinder head cover (Refer to

Mar 13, 2011 | Jeep Grand Cherokee Cars & Trucks

1 Answer

I need a print out of how i can change out a head gasket on a 1995 mercury cougar

  1. Drain engine cooling system.
  1. Disconnect battery ground cable (14301) .
  1. Remove engine air cleaner (ACL) (9600) including air cleaner outlet tube (9B659) .
  1. Loosen drive belt tensioner (6B209). Remove drive belts (8620) .
  1. If LH cylinder head (6049) is being removed, perform the following:
    1. Remove oil filler cap (6766) .
    1. Remove power steering pump front mounting bracket retaining bolts.
    1. Remove generator (GEN) (10346) and belt idler pulley (8678).
    1. Remove power steering pump/generator bracket retaining bolts. Leave hoses connected, place pump/bracket assembly aside in a position to prevent fluid from leaking out.
  1. If RH cylinder head is being removed, perform the following:
    1. Remove drive belts .
    1. If equipped with A/C, remove mounting bracket retaining bolts. Leave hoses connected and position A/C compressor (19703) aside.
    1. Remove positive crankcase ventilation valve (PCV valve) (6A666) .
  1. Remove upper intake manifold (9424) .
  1. Remove valve cover retaining bolts.
  1. Remove fuel injection supply manifold (9F792).
  1. Remove lower intake manifold as outlined.
  1. Remove exhaust manifolds (9430) as outlined.
  1. Loosen rocker arm seat retaining bolts enough to allow rocker arm (6564) to be lifted off the push rod (6565) and rotate to one side.
  1. Remove push rods . Identify position of each push rod . Push rods should be installed in their original position during assembly.
  1. Remove cylinder head retaining bolts and discard.
  1. Remove cylinder heads .
  1. Remove and discard old head gaskets (6051) .
  1. NOTE: Lightly oil all bolts and stud bolt threads before installation except those specifying special sealant.
    Clean cylinder head, intake manifold , valve cover (6582) and head gasket surfaces. If cylinder head was removed for head gasket replacement, check flatness and sealing areas for scratches of cylinder head and cylinder block gasket surfaces. Refer to Section 03-00 for procedure.
  2. Position new head gaskets onto cylinder block (6010) using cylinder head to block dowels (6A008) for alignment.

    Head Gasket


  3. Position cylinder heads onto cylinder block .
  4. ani_caut.gif CAUTION: Always use new cylinder head bolts to ensure a leak-tight assembly. Torque retention with used bolts can vary, which may result in coolant or compression leakage at the cylinder head mating surface area.
  5. For 3.8L non-SC engine, tighten cylinder head retaining bolts in numerical sequence in three steps as follows:
    1. 20 Nm (15 Lb-Ft)
    1. 40 Nm (29 Lb-Ft)
    1. 50 Nm (37 Lb-Ft)
  6. ani_caut.gif CAUTION: Do not loosen all of the bolts at the same time, only work on one bolt at a time or possible damage to engine or leakage may occur.
    In sequence, loosen retaining bolts two to three revolutions and retighten bolts one at a time in the following manner:
    1. Long bolts:
      • 15-25 Nm (11-18 lb-ft).
      • Tighten bolt an additional 85-95 degrees.
      • Go to next bolt in sequence.
    1. Short bolts:
      • 10-20 Nm (7-15 lb-ft).
      • Tighten bolt an additional 85-95 degrees.
      • Go to next bolt in sequence.


      Item Part Number Description 1 6010 Cylinder Block 2 - Locating Pin (2 Req'd) 3 N802515-S Cylinder Head Bolt (4 Req'd Each Side) 4 6049 Cylinder Head 5 N802516-S Cylinder Head Bolt (4 Req'd Each Side) 6 6A008 Cylinder Head to Block Dowel
  7. NOTE: If original valve train components are being installed, a valve clearance check is not required. If a component has been replaced, perform a valve clearance check as outlined.
    Dip each push rod end in Engine Assembly Lubricant D9AZ-19579-D or equivalent meeting Ford Specification ESR-M99C80-A and install push rods in their original position.
  8. For each valve, rotate crankshaft (6303) until valve tappet (6500) rests on the heel (base circle) of the camshaft lobe, before tightening rocker arm seat retaining bolts to 7-15 Nm (5-11 lb-ft) maximum.
  9. Lubricate all rocker arms with Engine Assembly Lubricant D9AZ-19579-D or equivalent meeting Ford Specification ESR-M99C80-A. Final-tighten the rocker arm seat bolts to 30-40 Nm (22-30 lb-ft). For final tightening, camshaft (6250) may be in any position.
  10. Install exhaust manifolds as outlined.
  11. Install lower intake manifold as outlined.
  12. Install fuel injection supply manifold .
  13. Position valve cover and new valve cover gasket (6584) on cylinder head and install retaining bolts. Note location of ignition wire routing clip stud bolts. Tighten retaining bolts to 9-12 Nm (7-9 lb-ft).
  14. Install upper intake manifold .Install spark plugs (12405) , if removed.
  15. Connect ignition wires to the spark plugs .
  16. If LH cylinder head is being installed, perform the following:
    1. Install oil filler cap.
    1. Install generator/power steering pump mounting bracket.
    1. Install generator .
    1. Install main accessory drive belt tensioner .
    1. Install power steering pump (3A674) .
    1. Install power steering pump support bracket.If RH cylinder head is being installed, perform the following:
    1. Install positive crankcase ventilation valve .
    1. If equipped with A/C, install A/C compressor mounting brackets (2882) and A/C compressor .
  17. Install drive belt and tighten to specification.
  18. Connect battery ground cable .
  19. Install air cleaner outlet tube.

Mar 06, 2011 | Mercury Cougar Cars & Trucks

2 Answers

Heads replaced: How to adjust valves on 1999 Taurus 3.0

Doesn't the OHV engine have hydraulic lifters? If so there is no adjustment.

Sep 24, 2010 | 1994 Ford Taurus

1 Answer

The roller rockers broke. I am not sure why but I need to know how to replace them

You didn't say what kind of car is, but but if they have a hex nut with Allen screw inside it. Remove the nut and screw the screw back. Remove their old rocker and put the new one on. Put the nut on but not too tight. Now turn the motor slowly until the other valve for that cylinder opens. Now a just and nut down. If it's a hydraulic tighten the nut down snug thing go 3/4 turn more. If its mechanical use a feeler gauge and go with the proper clearance. Then tighten the Allen screw back down very tight. Try to figure out what went wrong. Because it could happen again. Remove the push rods and roll them on a flat surface to see if they are straight don't use bent push rods. Then check for spring bind, with the valve all the way open there should be no spring bind use a feeler gauge to check for this. Also look at the rocker to make sure it's not restricted in any way, also no interference with the pushrod. Without seeing it that's about the best I can do. Good luck.

Jun 22, 2010 | Cars & Trucks

1 Answer

Replaced the head and need to know how to adjust the valves. 79 jeep wrangler cj7 4.2

you do one cyl at at a time turn crankshaft until both rockers are all the way down turn rocker nuts just until push rod has resistance from turning then tighten nut a half a turn then repeat procedure for all cyls

Nov 11, 2009 | Jeep Wrangler Cars & Trucks

1 Answer

Need head bolt,intake upper and lower and rocker arm torque lbs.

Head bolts--------- 22 ft lbs.
Intake upper------ 18 ft lbs.
Intake lower------- 10 ft lbs. Tighten vertical bolts first, the diagonal bolts, failure to do this will result in an oil leak.
As far as the rocker arm bolts, they have to be adjusted with the valves closed, tighten down just enough to turn the push rods with your fingers with slight tension.
This is out of a Technical Specifications Manual.

Jul 30, 2009 | 2002 Pontiac Grand Am

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