Question about 1995 Lexus ES 300

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How to fix valve seals - 1995 Lexus ES 300

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  • yadayada
    yadayada May 11, 2010

    replacing valve stem seals requires allot of special tools and a very high skill level in auto repair knowledge and hands on experience, it is not for the do it yourself shade tree mechanic.



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Try this website to see if they have your car listed its and another one is are stop by your local library and get you hands on a haynes auto repair manual for your car.

Posted on May 19, 2009


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Reoccurring valve cover leaking on 2009 Hyundai has tried twice to fix problem

It is more than likely bent if it will not seal. Get a new valve cover.

Sep 24, 2017 | Hyundai Cars & Trucks

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Oil leaking on spark plug

If the spark plug is oil fouled, you either have leaking valve seals, or bad piston rings. Bad rings would be accompanied by excessive blow-by. With the engine running, remove your oil filler cap. If there is air pulsing out of the filler tube, it your rings. If not, it is your valve seals.

Jun 15, 2016 | Cars & Trucks

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Valve stem seal

Value stem seals are under the valve cover.(under the top of the engine)

Worn value stem seals will allow oil to blow into cylinders during cold start.

NOT a job for beginner,

Jan 11, 2014 | Cars & Trucks

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Blue smoke when starting frist thing in the morning

This usually indicates worn valve guides. When the engine sits for a period of time, the residual oil sitting in the cylinder head will seep down the valve stems past the seals and guide and into the cylinder. When you fire it up the little bit of oil burns off giving you the blue smoke. Usually clears up right away.

When the guides get worn and theres some play in the valve stem, it stretches the seals a little too so they nolonger seal very well and allow the oil to seep past.

You can replace the seals for a temporary fix, but will not last long as the play will stretch them again. Whats needed is a valve job. Not a quick fix. The valve guides need to be reamed and honed to resize them to fit the valve stems correctly to eliminate sideways play, then the valves ground and reseated and fitted with new stem seals.

Having said all that, if the smoke clears in seconds, you can keep going for a while yet. A little oil burn wont hurt much. As the wear gets worse the smoke will persist longer till it never quite goes away and you leave a trail behind you. Depending on your usage, (and how bad now) this could be 6 - 9 months away.
Hope I have helped.

May 23, 2011 | 2004 Hyundai Santa Fe

2 Answers

Blue smokes come out tailpipe when i start the car but stops afte

Helllo there
Symptom: Gray or blue smoke from the exhaust. You notice gray smoke coming from the exhaust when you start your car. The smoke may or may not disappear after the car is warmed. If it is, it is less noticeable. The smoke may have a bluish tint to it. Possible causes:

  1. The engine's piston rings may be worn.
    The Fix: Replace piston rings. (Generally not a DIY job)
  2. The engine's valve seals may be worn.
    The Fix: Replace valve seals. (Generally not a DIY job)
  3. Damaged or worn valve guides.
    The Fix: Replace valve guides. (Not a DIY job)
Symptom: Engine uses more oil than normal, and there is some smoke from the exhaust. The oil level is low between oil changes. It appears that the oil is being burned by the engine because of the smoke in the exhaust. You may or may not notice the engine doesn't have the same power as it used to.
Possible causes:

  1. The PCV system is not working properly.
    The Fix: Replace PCV valve.
  2. The engine may have mechanical problems.
    The Fix: Check compression to determine engine condition.
  3. The engine's piston rings may be worn.
    The Fix: Replace piston rings. (Generally not a DIY job)
  4. The engine's valve seals may be worn.
    The Fix: Replace valve seals. (Generally not a DIY job)

Jun 01, 2010 | 1989 Buick Electra

1 Answer

93 sundance 3.0L replace the valve seals

it is more than just the valve seals.the 3.0l engine is notorius for the valve guides slipping down into the valve pocket. there is a fix that involves adding a keeper to prevent them from falling but it requires removing heades and taking them apart. yours may have already have had this done so valve seals may fix it.
yes you can change without removing heads you need to have piston at the very top off stroke if off by a little the piston will be forced down by the air pressure so somehow locking crankshaft from moving would be a good idea.
remove plug from a cyl and fashion or buy a fitting to screw into plug hole that will also hook up to a air hose from a air compressor. the air pressure holds the valve closed then you will meed a valve spring compressor designed for removing the springs with head still installed. can rent them at auto parts stores.remove spring and replace seal. then reassemble and move on to the next
but sometimes the valve opens or piston moves down and the valve falls into the cylinder. you can pull it back up and try again or just take the heads off.
my recomendation is just take the heads off they are fairly easy to remove and instal. then have machine shop cut the grooves in the guides and install keeper clips

Apr 04, 2010 | 1993 Plymouth Sundance

1 Answer

What would it cost to fix the valve seals on a toyota rav 4

can be pricey new valve seals need to be machine pressed in a average valve job will cost 1300 dollars depends on the state and price quotes in your area id definetley look around

Nov 04, 2009 | 2002 Toyota RAV4

2 Answers

I have an oil leak in a spark plug chamber how do is fix it

depends where the oil came from.of it has leaked down from a valve cover gasket,that is not hard to fix.if it a leaking valve seal that is expensive and if the head gasket is leaking,expensive.look at the outside edge of the valve cover,and check the edge for oil.if there is alot of oil,by the time the plug is unscrewed oil can go inside.the oil would burn off,so if there is oil inside it is dripping down probably from a valve seal.take off the valve cover and inspect the seals they are probably no good.there are 2 seal sets,one is in the valve cover,and that results in oil on the outside of the plug,and the actual valve seal which results in oil in the inside of the engine.

Jul 13, 2009 | 2002 Nissan Maxima

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