Question about 1994 Chevrolet S-10 Blazer

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Result of Valve Noise

Hello. Just wanted to thank you, your advice worked perfectly. It started right up after backing off on the rockers. I don't think there is any valve damage. Thanks again.

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Posted on Dec 27, 2008


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Stalled the engine and now struggling to start and idle and making bad topend noise,as if valves are hitting pistons. Any suggestions?

If it starts then I would leave that possibility to last. I would remove the rocker cover and check the operation of the rockers as one may have slipped sideways and is not directly over a valve stem. t is also possible to check the valve timing with the rocker cover off. Turn the engine clockwise until the rockers on no 1 cylinder start to move watch these rockers and when you see no1 exhaust rocker start to come up then it will be getting close . Keep turning until you see the exhaust rocker stop moving up and the inlet no1 cylinder rocker start to go down. Move the crank back and forth until you get the position of movement either way moves either rocker. This is called valve overlap and if you look at the timing mark on the harmonic balancer pulley then the mark will be almost /on TDC
I would then run the fault codes as there may be other problems that caused the stall situation.

Aug 26, 2014 | 2006 Fiat Strada 1.6

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Ticking in engine

The rocker arm has to be set perfectly so as to not be TOO TIGHT or TOO LOOSE.. TOO tight and it will miss/shake/vibrate ... too loose and it will TICK/make noise and not run well...

Aug 22, 2017 | 1996 Mercury Grand Marquis

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Have a 2006 chrysler 300, 3.5 with loud ticking noise during acceleration, also experiencing loss of power. Replaced both rocker assemblies and performance improved but ticking is still there.

sounds like bad valve seats or seals do you have a oil pressure gauge on your dash.check the pressure.then check your return ports on top of the head thats giving you the problem see if the oil is returning to the oil pan.sometimes the return ports become blocked and the oil stays on top of the head.and see if the oil supply is making up to the head.hope this helps.mark

Feb 19, 2014 | 2006 Chrysler 300

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I just got the rocker arms changed in my 06 dodge stratus and it is still making a lil noise how long does it take to stop making the noise

If the valve lash is good it should not be making noise. Sounds the mechanic maybe did not get the lash just right. I would ask him to readjust the valve lash or at least check it. The rockers started oil as soon as you started the engine and the oil pressure came up.

Apr 25, 2017 | 2006 Dodge Stratus

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I have timed my 86 gmc and now it backfires a lil bit and no matter witch was i turn the distributer it still backfires

if ticking noise is heard through valve covers inspect rocker arm clearance, inspect arms and push rods for wear. back firing could be a result of incorrect valve clearance

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95 mustang valve train noise.. coming from top of valve covers.. dont think its the lifters.. could it be rockers.. loose or damaged.. whats the process of removing valve cover.. do i have to take off...

not hard and no dont need to remove intake will have to remove some things depends on which side your working on like air intake hose a wire or two might have to unbolt a/c/ if u have- could be rocker also check for dry push rod ,weak valve springs worn valve guide-

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93 festiva engine valve noise

You would have to read the tech manual to see if they are just shims or if the are a hydraulic type lifter. They would actually pump up with oil and hold slight pressure on the cam so there would not be the tappet noise associated with a solid lifter cam. Odds are they got gummed up and started tapping on you. Hopefully you marked the cylinders they came off of and placed them back in the same location on the cylinder head as originally installed. You don't want premature cam failure because of the mismatched wear patterns on the lifters. Good Luck, RAC

Apr 20, 2009 | 1992 Ford Festiva

1 Answer

No compression! additional comments

are these adj rockers? if so then take the nut down till you have about 1/4 in bolt sticking above it, then see if it will start, if it does then back each rocker off till it starts clicking then tighten till it stops clicking then go another1/4 turn thats your running adjustment!!!

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Mar 23, 2009 | 1999 Ford Mustang Cobra

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Valve noise

I am from the old school. Start the engine with the valve covers off, back off the rocker nut until the rocker starts tapping then slowly tighten nut until tapping stops then go an 1/8 of a turn tighter. Repeat the same for the rest.I know it will be very messy and you have to watch the oil on the exhaust manifolds for a fire. There will be a lot of smoke. What I do is cut out sheet metal and use it as a shield so the oil does not flow over the head as much.

Dec 27, 2008 | 1994 Chevrolet C1500

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