Question about 1997 Mitsubishi Galant

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Valve Lifters I need to adjust my valve lifters. They are clacking rather loudly. I used to do this sort of thing when I was younger and I think I can tackle the task. Pleae advise how to go about this. It is a 2.4 litre ES model. Thank You in Advance Kevin L.

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This car has hydraulic self-adjusting lifters - there is no mechanical adjustment. Go to the local parts store and get a can of Seafoam - pour half the can in the oil, drive 30-40 miles, and change the oil and filter. It's possible that oil sludge is preventing a lifter from pumping up. Seafoam is good at clearing that stuff out.

Posted on Oct 12, 2008

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Why would clacking still exist after lifters have been changed. Also, oil seems to vanish periodically. Is the loss of oil related to the clacking?


If this engine has hydraulic lifters and no lash adjustment available, you may have one or more cracks in the lifter bores causing the lifter to bleed down and take longer to pressurize back up.If not leaking oil, it has to be burning it. Possibly through worn valve guides/seals in the cylinder head.

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This car has hydraulic lifters( tappets} therefore should not adjustment, you probably have a bad or weak lifter. But, in any case you have to remove the valve covers to make the adjustment. You will see the adjustable bolt on the rocker arm. rotate the engine until the valve is all the way to the top, [no tension on the valve spring] then place a feeler Gage in between the rocker arm and the valve stem, adjust the rocker arm until the feeler Gage is snug but not tight. Do this with each valve. Check the book for the correct Gage to use but I think it is a .018.

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Hi , usually a knocking / pinging from the valve cover indicates a lifter tapping. Could be worn out or just worn. Do you change your oil every 3000 with high quality oil? (I always have used valvoline standard with outstanding results) Dirty oil and filter and or incorect weight oil and or using synthetic oil in older cars can result in lifters tapping. If your oil is under 2000 miles since last change and you used a high quality oil (watch who changes your oil, some places use inferior oil because its cheaper) you can buy a pint of oil treatment formula to quiet noisy lifters to coat the lifter and quiet it down. It is a sign of engine wear, but one lifter tapping a bit wont really hurt your engine mechanically. If they all get noisy, time for a valve job. Root cause is wear due to insufficient lubrication. The lifters on newer cars are all hydraulic and they self adjust. No manual adjustment is possible. Bottom line: keep your oil changed regularly using a high quality non-synthetic oil for your 1999 vehicle.
Please rate this answer! Thanks, Mike

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1 Answer

My lifters are getting really loud on my 91 honda accord ex


All you need is to adjust the valve tappet clearance back to the original specification. It is a time consuming effort and require passion to do it. You need to remove the top engine cover, set timing belt to top dead centre then adjust intake & exhaust valve clearance one by one. Rotare the cranckshaft 180 degree and repeat the valve clearance,. I would suggest to leave it to the expert.

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valve lifters make a kind of rattly knocking noise! which sort of follow engine revs.if they are gone you may need a new camshaft as well, best to do itr all at the same time and are sold as a kit.are you sure there is a new noise or are you just listening harder?

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This car has hydraulic lifters( tappets} therefore should not adjustment, you probably have a bad or weak lifter. But, in any case you have to remove the valve covers to make the adjustment. You will see the adjustable bolt on the rocker arm. rotate the engine until the valve is all the way to the top, [no tension on the valve spring] then place a feeler Gage in between the rocker arm and the valve stem, adjust the rocker arm until the feeler Gage is snug but not tight. Do this with each valve. Check the book for the correct Gage to use but I think it is a .018.

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