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How do I check the valve lash on my toyota 5k engine with hydraulic valve lifters?

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It is not necessary and impossible to do so as the lash is taken up by the hydraulic lifter operation. There will be no adjusting screws on the rockers for the adjusting purposes. If it is making aclicking/tapping noise similar to loose tappets and the engine has done miles then it is possible that either the rocker shaft and rocker bushes are worn or the hydraulic followers need replacing.

Posted on Dec 12, 2014

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Posted on Jan 02, 2017

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SOURCE: hydraulic lifters

Yes, but there is still a lot of stuff to move out of the way to get in there and pull them. I would try all the chemical remedies for sticky lash adjusters (oil flush, marvel's mystery oil, etc.) first, then check the timing belt to see if a worn timing belt has let it slip a tooth and the valve timing is off for that reason before digging into the lifters. There used to be a forum that had video and audio from a subaru legacy this model before and after swapping out a bad lifter. Google for it and see if the noise matches.

Posted on Mar 21, 2009

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SOURCE: 2001 Toyota Corolla lifter noise

Check your timing or could be timing belt out of 1 tooth. This model of corolla does not use lifter.

Posted on Jun 10, 2009

emissionwiz
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SOURCE: I'm hearing a knocking noise from the rear bank on

rod or main noise is almost for sure the problem

Posted on Jun 26, 2009

bad_dog1
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SOURCE: check engine light code 0012 valve lifter oil

i looked up trouble code P0012 for Camshaft position ”A” −timing over−retarded (BANK 1). Possible causes include: valve timing, oil control valve, oil control valve filter, camshaft timing gear assembly, or your engine control module.

Posted on Jun 28, 2009

  • 490 Answers

SOURCE: 1993 Toyota Camry. Noise from engine!

This job can cost about $200/$400 depending who does the work.Yes you have to tahe apart the top of the engine,and the valve cover gaskets can be dobne at the same time.but these are two seperate jobs depending on which engine you have,sometimes they both have to be done when you do lifters.

Posted on Jul 23, 2009

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1 Answer

How to solve hydraulic tappet noise in Toyota 5k engine I replaced the head with another hea with new valve seals etc


If you are using the recommended oil for your engine then use a higher viscosity oil. Avoid synthetics with high flow rates. How to Fix Noisy Tappets Lifters

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How do I adjust valve lash on a 2001 pontiac montana 3400 enging


The lifters are hydraulic, so adjusting them is not possible. The lifters can take up very little play, so valve ticking when cold is normal. I have had two of these engines. Be sure to have the heads torqued properly, to keep play at a minimum.

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When putting head back on after head gasket job, how do i set valves on 2001 jeep cherokee 4.0.


Valve Lash (Clearance) Adjustment

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These engines are equipped with hydraulic valve lifters. No valve clearance adjustments are necessary.Here's a link to help.

Jan 28, 2013 | 2001 Jeep Grand Cherokee

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Top of the engine is ticking. friend told me it could be a valve that is clogged or stuck open and thats its not a huge problem but it might be mixing gas and oil. to me that sounds like a problme....


It sounds like hydraulic lifter noise. The lifters open and shut the valves and can be helped by using a good synthetic oil and frequent oil changes. Lash is the clearance between the valves and lifters.

Mar 22, 2011 | 1993 Isuzu Trooper

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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

I need the engine valve spec for a 1984 chevy 6.2 diesel. We are adjusting the valves.


VALVE ADJUSTMENTS All gasoline and diesel engines in this guide use hydraulic valve lifters, which require no periodic maintenance or adjustment. However, in the event of cylinder head removal or any operation that requires disturbing or removing the rocker arms, the rocker arms must be adjusted in order to position the pushrods to allow the hydraulic lifters to maintain zero lash. Refer to the valve lash adjustment procedure under Rocker Arms, earlier in this Section.

Aug 21, 2010 | 1984 Chevrolet K1500

2 Answers

Is it necessary to replace valve lifter or can you adjust lash to reduce clatter on dakota v-8


hydraulics lifters you must replace as they will wear out.

solid tappet lifters can just be adjusted for. Unless you have some custom old engine in yours I'd imagine yours is the first.

You might also try running some pennzoil or quaker state oil to reduce clatter. They're wax based and will often do wonders for semi-clogging the right areas while keeping the other places open. Great for hi mileage motors.

Aug 13, 2010 | 1999 Dodge Ram

1 Answer

How do I tell if I have a hyd. or solid lifter cam in my SBC and how do I tell the differance between the two lifters


If the engine is not apart, there isn't any real way to tell but if you remove a valve cover, on a solid lifter cam, when the engine is turned, there should be one time, when the lifter is on the heel of the cam lobe a bit past the time when the valve you are watching has closed, that you should have about 16 thousandths or more clearance between the rocker and the valve stem (called lash) A hydraulic lifter is always in contact with no gap.(though you may get a false reading if a lifter is bleeding down)
if the engine is apart enough to see the top of the lifters, a hydraulic lifter has a wire clip in the top that holds the hydraulic piston inside from popping out too far. A solid lifter does not have a clip because it dosen't need one (that's why it's solid)
Unfortunately, to know WHICH cam you have, you'd need to remove it as the manufacturer and grind numbers are usually stamped on the back end. (generally 16thousandths lash on intakes and 18 thousandths on exhaust will put you in the "ball-park" though).

Apr 26, 2010 | 1983 Chevrolet Chevy

1 Answer

Tapping Noise at idle 1994 Dodge Dakota 3.9L 5 speed manual


for v-6....3.9L

These engines are equipped with hydraulic lash adjusters designed to maintain zero lash at all times.

for 4 cyl...2.5 sohc
Valve Lash
Non-adjustable Dry Lash 0.024-0.060 inch.

for v8,...5.2---These engines use hydraulic lifters. No provision for adjustment is provide

Jun 04, 2009 | 1993 Mazda RX-7

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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