Question about 2001 Harley Davidson FXDL Dyna Low Rider

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Engine has a tickn noise like the lifters are loose

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Had the same issues when we upgraded from a shovel head to a newer bike. HD tried telling us, "it's a Harley. .." to which my responses was so..... it is ticking, one valve, brings your head right down into the bike, and sounds bad. Not 4 valves, 1.

Had HD replace all lifters, and pushrods, changed pushrods to adjustable ones, to try for another position (collapse of lifter...) Nothing worked, noise eventually came back...

We did all of the changes, and tweeks, the only solution was Velvet Touch lifters and lifer blocks. Pretty picey, but never heard another peep out of the valves....

Doc

Posted on Oct 03, 2009

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Valve tap cause


Most engines now use hydraulic lifters and they can leak a little, this causes space between then lifter and the push rod. This results in a tapping noise that goes away when they get warm or fill back up.

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Engine lifter noise


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Mar 11, 2013 | Audi A6 Cars & Trucks

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Tikking noise coming from engine


Yes, you're right, those could be the cause. Also, possible it's a collapsed hydraulic valve lifter, if your car has hydraulic operated (from engine oil) valve lifters. At any rate, it sounds like something loose in the valve train-valve lifter with push rod engines; or cam followers {rocker arms) with overhead cam engines that push on the top of valve stems .
Check a repair manual to see if your engine has valves that can be and need adjusting. Engines with valve lifters do not require periodic adjustment for proper valve clearance. Engines with rocker arms do require checking the valve clearance every couple of years or so.

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4.3l v6 lifter noise on startup


Check this information about "engine noses"...

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.

DAMAGED ENGINE PARTS NOISE
Inspect the valvetrain components. Excessive wear on the ends of the rocker arms, cam followers (overhead cam engines) and/or valve stems can open up the valve lash and cause noise. So too can a bent pushrod or a broken valve spring.

RAPPING OR DEEP KNOCKING ENGINE SOUND
Usually bad news. A deep rapping noise from the engine is usually "rod knock," a condition brought on by extreme bearing wear or damage. If the rod bearings are worn or loose enough to make a dull, hammering noise, you're driving on borrowed time. Sooner or later one of the bearings will fail, and when it does one of two things will happen: the bearing will seize and lock up the engine, or it will attempt to seize and break a rod. Either way your engine will suffer major damage and have to be rebuilt or replaced.

Bearing noise is not unusual in high mileage engines as well as those that have been neglected and have not had the oil and filter changed regularly. It can also be caused by low oil pressure, using too light a viscosity oil, oil breakdown, dirty oil or dirt in the crankcase, excessive blowby from worn rings and/or cylinders (gasoline dilutes and thins the oil), incorrect engine assembly (bearings too loose), loose or broken connecting rod bolts, or abusive driving.

Bearing wear can be checked by dropping the oil pan and inspecting the rod and main bearings. If the bearings are badly worn, damaged or loose, replacing the bearings may buy you some time. But if the bearings are badly worn or damaged, the crankshaft will probably have to be resurfaced - which means a complete engine overhaul or replacing the engine is the vehicle is worth the expense.

ENGINE PINGS OR KNOCKS WHEN ACCELERATING
The cause here may be Spark Knock (Detonation) caused by an inoperative EGR valve, overadvanced ignition timing, engine overheating, carbon buildup in the combustion chambers, or low octane fuel.

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Feb 15, 2012 | 2001 GMC Sonoma Extended Cab

1 Answer

I just changed my oil and filter but it makes a lil tickn noise makes more noise on driver side what can it be


That is a lash adjuster ticking. I would recommend that you run some seafoam in your engine, it is safe, and it is compatible with all engine oil types. Just substitute the seafoam for the same amount of oil. It is about 10 bucks a can, and you can get it at any auto parts store.

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Making ticking nosies and does not start


If it makes ticking noises and does not turn over the engine it usually means the battery is either low, defective or the battery terminals need cleaning.

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Lifters are knocking and there is a missing in


lifters tick and noise is upper end of engine if lifters are making noise could be from a bad valve,bad lifter ,push rod ,oil pressure,rocker arm - need to take do compression test find out if valve problem and which cylinder is problem also take off valve cover and check for proper oiling of valve head and look to see if and are damaged or loose-------a knocking sound usually comes from lower end of engine,rod knock etc.and thats usually rebuild of engine

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Engine ticking at idle and low speeds


Hi There,
I would try adding a lifter quiet supstance such as nulon lifter quiet, may or may not be available in your country, 
Or try heading to a local auto store and look for a reputable brand name products, ie injector clean/ carby clean /lifter quiet/worn engine treatment.
Below i have listed common problems related to yours that might be worth checking.
Sometimes the oil that you may of put in may not be thick enough hence why youre getting more noise.
it could mean yes that a lifter or shim is loose and needs adjustment,
injector noise from fuel injectors if they get clogged up they tick loudly.
Dirty fuel causing injector noise
Low oil or incorrect oil level as in over full.
Incorrect oil specification/ wrong Viscosity or grade.
Leak or low oil presssure could be a blockage somewhere stopping oil circulating
Worn oil pump not correctly pumping enough oil.
Oil line blockage insufficent oil getting up to the lifters
It coudl even be driveline related as in a C.V. joint coudl be loose/worn and ticking.
Ive even seen cars where wire has been entwined aroudn the driveshaft and taps against the floor/wall
Coudl be a fan if your fan runs off the engine rather then electric ticking against the houseing or it could also be a belt or bearing in one of you accesories ie a bearing in the aircondition clutch tha tmay be loose and is ticking.
However start small and go from the cheapest option up to the dearest.
Make sure you have a good listen while its running with the bonnet up and go through to try and find the source of the sound.
Usually this is what the mechanics would- do anyway untill they find the problem.
Hoipefully this helps so you dont have to take it to the shop.
Cheers
Steve

Apr 03, 2009 | 1997 Mitsubishi Montero Sport

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