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Valve lash sequence for ne6 engine, and how to find top dead centre

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6ya6ya
  • 2 Answers

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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stormbrewin
  • 426 Answers

SOURCE: valve overlap

Firing order determines what is next.Follow the firing order.I know when finding compression stroke on v8 when 1 is at tdc 8 is on the rock.Cleveland v8s firing order is 18436572.

Posted on Oct 20, 2008

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dr_greg
  • 192 Answers

SOURCE: Noisey valve train

intake ... 20mm exhaust ... 25mm

Posted on Apr 05, 2009

  • 881 Answers

SOURCE: could you tell me which valves should be open when

Both valves should be rocking But only Inlet just opening, and Exhaust just about closed and its the same on all cylinders..
When piston goes down it sucks fuel mix in and almost a bottom of stroke it closes..

Posted on Oct 16, 2009

  • 157 Answers

SOURCE: How do I repair valve lash on a 2001 ford

it is possible lifters noise or rokers change oil and use thiker oil and see if noise get less

Posted on Nov 02, 2009

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2 Answers

Valve clearance on suzuki vitara 1999 1.6


  • Set the engine to Top Dead Centre (TDC) of the compression stroke for the cylinder to be adjusted.
  • Check the valve clearance. The valve clearance specifications are as follows:

    Intake valves: 0.005-0.007 inches (0.13-0.17mm) Exhaust valves: 0.005-0.007 inches (0.13-0.17mm)
  • After adjustment, tighten the lock nuts to 11-14 ft. lbs. (15-19 Nm).
  • Repeat for each valve to be adjusted.
  • Feb 16, 2017 | Suzuki Cars & Trucks

    Tip

    Adjustting valve lash


    If the firing order is "1-3-4-2". First put it no.1 piston TOP DEAD CENTER. with the marks aligned. Adjust valve lash according to spec on intake and exhaust. Then turn crankshaft on whatever rotation it is suppose to go eg counter clockwise etc. quarter turn ( four cylinder engine). then adjust number 3 ( firing order 1-3-4-2). Then do the same for cylinder 4 and 2.

    on Jul 22, 2010 | Honda Civic Cars & Trucks

    1 Answer

    How do I set the valve clearances on a kia 2700


    hydraulic followers should not need adjustment as it is automatically done by the oil pressure in the followers.

    Dec 20, 2014 | Kia Cars & Trucks

    1 Answer

    How to adjust valve lash on a 1990 Geo Storm


    its an Isuzu engine.
    there are 3 engines.
    4XE1, SOHC 1.6L (base)12valves
    4XE1, DOHC , 1.6L same as above but now with 16valves.
    4XE1, DOHC, 1.8L bends valves if belt snaps...
    note the bad idea of ISUZU calling all 3 engine same name.
    a horrid idea.
    which one? the second was in USA and Canada only.
    the second one was offered as the GSI. is yours that?

    so I will attempt to guess for you, its the base engine.
    (odds of coin toss)
    toss #2, USA, SOHC
    guess 3: did a new belt and want to do lash next. Cam belt>
    No job stated so i guess 3 times.
    Just lash.
    SOHC 1.6L only (FSM book quote)
    Check the valve lash between the rocker arm and valve stem on both the intake and exhaust valves on the number 1 cylinder, the intake valve(s) on the number 2 cylinder and the exhaust valve on the number 3 cylinder. If the valve lash on the intake valves is not 0.006 in. (0.15mm), adjust the valve lash. If the valve lash on the exhaust valve is not 0.010 in. (0.25mm), adjust the valve lash.

    1.6L twin cam has shims.
    1.8L has HLA , no lash to set.

    HLA= Hydraulic Lash adjusters.

    I posted this before, search for it. Im only doing 1 engine.

    Apr 12, 2014 | 1990 Geo Storm

    2 Answers

    Overhead valves making noise like they need ajusting


    Valve Lash ADJUSTMENT 1.6L Engines NOTE: Measure valve clearance with the engine cold.
    1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
    2. Remove the valve cover.
    3. Set the engine to Top Dead Center (TDC) of the compression stroke for the cylinder to be adjusted.
    4. Check the valve clearance. The valve clearance specifications are as follows:
      • Intake valves: 0.005-0.007 inches (0.13-0.17mm)
      • Exhaust valves: 0.005-0.007 inches (0.13-0.17mm)
    5. After adjustment, tighten the locknuts to 11-14 ft. lbs. (15-19 Nm).
    6. Repeat for each valve to be adjusted.
    1.8L, 2.0L and 2.5L Engines The 1.8L, 2.0L and 2.5L engines utilize automatic hydraulic lash adjusters to maintain proper valve lash at all times. Periodic valve lash inspection and adjustment is not necessary or possible. prev.gif next.gif

    Sep 14, 2010 | 2000 Chevrolet Tracker

    1 Answer

    Need to know how to adjust the valves


    On Vehicle Inspection If a clanging noise due to the lash adjuster produced immediately after the engine has started or during operation persists, perform the following checks:
    1. Check the engine oil, and add or replace if necessary.
      1. If the engine oil is low, the air drawn in from the oil strainer will be trapped in the oil passage.
      2. If the engine oil level is higher than the specified level, agitation of oil by the crankshaft could cause a large amount of air to enter the oil.
      3. A deteriorated oil contains a large amount of air, because the air, once trapped, is not readily separated from the oil. If the air trapped due to these causes enters the high pressure chamber in the lash adjuster, the air in the high pressure chamber will be compressed while the valve is in the opened position. The lash adjuster will be drawn too far in, and will produce noise when the valve closes. This is the same phenomenon that occurs when the valve clearance is adjusted to an excessive dimension. Fig. 1: Check the valves with the white arrows, rotate the crankshaft 360°, then check the valves with the black arrows — 2.0L, 2.3L, 2.4L and 2.6L Engines 86663205.gif
        Fig. 2: Check the valves with the white arrows, rotate the crankshaft 360°, then check the valves with the black arrows — 3.0L (12 Valve) Engines 86663206.gif
        Fig. 3: Check the valves with the white arrows, rotate the crankshaft 360°, then check the valves with the black arrows — 3.0L (24 Valve) Engines 86663236.gif
        Fig. 4: Check the valves with the white arrows, rotate the crankshaft 360°, then check the valves with the black arrows — 3.5L Engines 86663207.gif
        Fig. 5: Push the rocker arm to check if the rocker moves down or not — all engines except for the 3.5L Engines. 86663208.gif
        Fig. 6: Push the rocker arm to check if the rocker moves down or not — 3.5L Engines. 86663210.gif
        In this case, the normal condition will be restored if the air escapes from the lash adjuster.
    2. Start the engine and slowly race (accelerate the engine from idling speed to 3,000 rpm in 30 seconds and then decelerate it to the idling speed in 30 seconds) it several times (less than 10 times). If racing the engine causes the noise to die away, it means that the air has escaped from the high pressure chamber of the lash adjuster and that the lash adjuster has regained its normal functions.
      1. When the vehicle is parked on a slope for a long period of time, the oil in the lash adjuster will decrease. When the engine is started, the air might enter the high pressure chamber.
      2. After a long period of parking during which the oil in the oil passage goes away, it will take some time before the oil is re-supplied to the lash adjuster. Therefore, the air could enter the high pressure chamber.
    3. If any abnormal noise is not eliminated by racing, check the lash adjuster.
      1. Stop the engine.
      2. Set the engine so that cylinder No. 1 is positioned at the top dead center of the compression stroke.
      3. Press the rocker arm at the area indicated by the white arrow mark to check whether the rocker arm is lowered or not.
      4. Slowly turn the crankshaft 360°clockwise.
      5. In the same procedure as step "c'', check the rocker arm at the area indicated by the black arrow mark.
      6. Push down the rocker arm at a portion located right above the lash adjuster. If the rocker arm goes down readily, the lash adjuster is defective. Replace it with a new one in accordance with Step 4. In addition, when replacing the lash adjuster, be sure to remove air positively from the lash adjuster before installation. Then perform inspection in accordance with steps "a'' through "e'' to make sure that there is no abnormality. In addition, if the rocker arm is felt to be very stiff or cannot be pushed down when it is pushed, the lash adjuster is in the normal condition. Therefore, check for other causes of noise.
    Bleeding and Checking When cleaning or checking the lash adjusters, use only clean diesel fuel. To test the lash adjusters, follow this procedure.
    1. Immerse the lash adjuster in clean diesel fuel.
    2. While lightly pushing down the inner steel ball using a small wire, move the plunger up and down four or five times to bleed air. The use of the retainer facilitates the air bleeding of the rocker arm mounted type lash adjuster.
    3. Remove the small wire and press the plunger in. If the plunger is hard to be pushed in, the lash adjuster is normal. If the plunger can be pushed in all the way readily, bleed the lash adjuster again and test again. If the plunger is still loose, replace the lash adjuster. NOTE: Upon completion of bleeding the air out of the lash adjuster, hold the adjuster upright to avoid the diesel fuel from spilling.
    4. After air bleeding, set the lash adjuster on the special tool (leak down tester MD998440).
    5. After the plunger has gone down somewhat 0.008–0.020 in. (0.2–0.5mm), measure the time needed for it to go down an additional 0.04 in. (1mm). Replace if the measured time is not between 4–20 seconds.
    prev.gif next.gif

    Sep 06, 2010 | 1991 Mitsubishi Mighty Max

    1 Answer

    Specification of 4JG2 Engine-Isuzu


    Four cylinder inline, water cooled, overhead valve diesel engine with dry liners available in Turbo(T) or normally aspirated(NA).
    Bore 95.4mm
    Stroke 107
    Displacement 3.059 litre
    Compression ratio 20:1
    Idling speed NA 750, T 720 rpm
    Firing order 1-3-4-2
    Injection timing NA: 1 deg after top dead centre(ATDC), at top dead centre(TDC) for turbo
    Valve clearance (cold): 0.4mm for intake and exhaust.

    Oct 24, 2009 | 1994 Isuzu Trooper

    1 Answer

    Valve adjustment


    tiburon uses hydrolic lash adjusters there are no valve lash adjusting If you hearing a pecking sound on the top of the mtr try some oil additive or replace the hydrolic lash adjusters

    Jun 15, 2009 | 2001 Mitsubishi Eclipse

    4 Answers

    TAPPING IN VALVES


    ENGINE CLICKING NOISES
    A clicking or tapping noise that gets louder when you rev the engine is probably "tappet" or upper valvetrain noise caused by one of several things: low oil pressure, excessive valve lash, or worn or damaged parts.
    First, check the engine dipstick to see if the oil level is low. If low, add oil to bring it back up to the full mark. Is the engine still noisy? Check your oil pressure. A low gauge reading (or oil warning light) would indicate a serious internal engine problem that is preventing normal oil pressure from reaching the upper valvetrain components. The cause might be a worn or damaged oil pump, a clogged oil pump pickup screen or a plugged up oil filter. Using too thick a viscosity of motor oil during cold weather can also slow down the flow of oil to the upper valvetrain, causing noise and wear.
    COLLAPSED LIFTER NOISE
    Worn, leaky or dirty lifters can also cause valvetrain noise. If oil delivery is restricted to the lifters (plugged oil galley or low oil pressure), the lifters won't "pump up" to take up the normal slack in the valvetrain. A "collapsed" lifter will then allow excessive valve lash and noise.
    VALVE LASH NOISE
    If you can rule out lubrication-related problems as a cause, the next step would be to remove the valve cover(s) and check valve lash. On older import engines, mechanical lifters require periodic valve lash adjustments (typically every 30,000 miles). Too much space between the tips of the rocker arms and valve stems can make the valvetrain noisy -- and possibly cause accelerated wear of both parts.
    To measure (and adjust) valve lash, you need a feeler gauge. The gauge is slid between the tip of the valve stem and rocker arm (or the cam follower or the cam itself on overhead cam engines) when the piston is at top dead center (valve fully closed). Refer to a manual for the specified lash and adjustment procedure. Also, note whether the lash spec is for a hot or cold engine (this makes a big difference!).
    On engines with hydraulic lifters, oil pressure pumps up the lifters when the engine is running to maintain zero lash in the valvetrain. This results in quiet operation. So if the rocker arms are clattering, it tells you something is amiss (bad lifter or worn or damaged parts) or the rocker arms need adjusting.

    Let me know if you have any other questions.  Thanks for rating my response and for using FixYa!

    May 28, 2009 | 1997 Ford Expedition

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