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Tappet noise Intermittent noise in hydraulic tappet

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Sounds like worn lifter/cam lobe,quite normal when engine gets a few mles on it.Lifter is finding it hard to fill the extra clearance created by wear.What sort of oil are you using and is it clean?Wear in an engine will lower your overall oil pressure as well,not generaly enough to worry about but it does contribute to the problem.At idle or when cold is generaly when this happens?

Posted on Oct 24, 2008

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Dodge 2004 2500 ram with hemi why the lifter ticking noise ??


that motor uses hydraulic tappets

you can try an engine flush or use a thinner /thicker oil
if no better replace the tappets that are damaged

as the cold engine starts it takes a while for the oil from the sump
to fill the tappets
but after the oil gets there and is warmed
that tapping noise should go away

failures
they can hammer out
lack of oil changes can clog the oil holes to the tappets
the choice of thickness of oil that suits your local conditions will have a factor

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Tappet settings for 1980 Hino am100


go on the net or contact your local service dealer, but for most diesels that do not hydraulic tappets the setting standard is .012" inlet hot and .014" exhaust hot. Make sure that the setting is required as tappet noise can be from work rocker bushes and shafts

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WHAT IS THE SIZE ASTRA CD 2009 TAPPET GAP SIZE


They should be hydraulic tappets and are self adjusting. If you have a noise check the wear of the rocker bushes and rocker shaft.

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1 Answer

Rattling noise engine


if it is short lived then it may be the hydraulic tappets filling with oil before they quieten down. Problem will be wrong oil viscosity--wrong oil filter (no anti drain back valve in it) or worn out hydraulic tappets. have them removed for a leak down test.

Dec 07, 2013 | 2001 Chevrolet Malibu

1 Answer

2000 crv honda just got a new timing belt and water pump after a couple of days now it make a noise (loud clicking noise) when I start it up


The noise you describe may be due to hydraulic tappet leak back form a oil that is of the incorrect viscosity or a cheap oil filter that doe's not have an anti leak back valve in it .The noise is until the oil pressure builds up and makes the hydraulic tappets work properly.

Jul 28, 2013 | 2000 Honda CR-V

1 Answer

Ticking clanking noise miata


This noise you hear is the hydraulic tappets ,there gummed up change the oil and use a cheap diesel/petrol engine oil a 2 second squirt of fairy liquid into the oil filler and leave for a couple of thousand kms then change the oil again and this will clear the gummed up holes allowing the hydraulic tappets to re adjust

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1 Answer

What is tappet settings


Hydraulic tappets are tappets that contain a small hydraulic piston, pressurised by the engine's lubricating oil supply.[5] Although the piston does not move appreciably or frequently, it acts as a hydraulic spring that automatically adjusts the tappet clearance according to the oil pressure. This makes the valve actuation self-adjusting and there is no need to adjust the rockers. Hydraulic tappets depend on a supply of clean oil at the appropriate pressure. When starting a cold engine, with low oil pressure, hydraulic tappets are often noisy for a few seconds, until they position themselves correctly.


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1 Answer

Knocking knoise under 1500 rpm


If your car has hydraulic tappets and low low oil pressure at engine speeds then it can make tapping noises. Oil pressure is needed to maintaine the tappets clearances, excessive cleaeances will produce noises.

Jan 30, 2012 | 2000 Pontiac Sunfire

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There is a clicking noise ( raises and lowers ) when idleing . someone thought it was a cam noise


hi this could be a cam noise, but also can be a tappet noise, if you have not changed the oil in a while it could be the oil has gone thin and needs new oil, the other thing is, blocked hydraulic tappet's, best way to sort this is to use an engine flush which you add to your old oil, run the engine for half hour, then drain, then refill with new oil, do not use 15w/30, try using 20w40 this is a thicker oil and will possibly silence the tappet's, but if the engine has done allot of miles these may need replacing altogether.....hope this helps

Feb 26, 2010 | 2004 Volvo S40

1 Answer

I have a 2005 model year (made in Mexico in 2004) Rendezvous that starting making a clacking noise on start up on Friday, September 18, 2009. The noise is intermittent. It holds to no pattern that is...


The hydraulic lifters sometime get dirty and stick. Sometime they colapse and always make a ticking noise. If it is intermittent, I use
a engine up lube cleaner. Follow directions on bottle then change oil. This could help. Also fuel injectors will make noise when they are getting worn.

Oct 15, 2009 | 2005 Buick Rendezvous

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