Question about 1994 Hyundai Excel

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Can i change valve stem seals with out taking the head off

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  • Hyundai Master
  • 6,826 Answers

Yes,it is possible,by closing the valves in the cylinder you are working on,and using a air fitting,screwed into the cylinder spark plug hole,this will hold the valve up.

Posted on May 04, 2010

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Posted on Jan 02, 2017

  • 366 Answers

SOURCE: valve stem seals hyundai elantra do i need to take

yes u do!

Posted on Apr 29, 2009

chispitas
  • 69 Answers

SOURCE: replace valve stem oil seals

no you can't. you have to remove the head. sorry. why do u want to do that. is it smoking blue? if thats the case u will have to do a complete service on the head

Posted on Feb 22, 2009

  • 1861 Answers

SOURCE: Celica ST 1.8 Valve stem seals

When does it smoke? All of the time, or just when you start it? If it smokes all of the time, consider piston rings. If you have lots of smoke when first starting only, valve seals and possibly worn valve guides are the culprit.

Posted on Sep 12, 2008

rockitman187
  • 2559 Answers

SOURCE: WHAT'S LEAKING? Is it the valve stem seals or piston rings???

Hi,
If it is the valve seals,you can replace the head,but it would be cheaper to replace the seals,If you pull the head,you can do a leak down test on the pistons to check the rings as well.


Please Rate This FixYa Solution.

Posted on Jan 23, 2009

co7196
  • 3433 Answers

SOURCE: changing valve stem seals in a 86 saab with 2.0

Valve spring compressor, a ballpeen hammer , needle nose pliers, a deep 0/16 socket, and all the needed gaskets and seals. Good Luck. 909-630-3192 if you get into a bind, Do you have a compressor and aspark plug hole adapter. with a air coupler that will fit your air hose. Have fun=Ned_

Posted on Sep 17, 2009

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2002 Subaru impreza ts 2.5 when driving down the road and let off the gas and coast then get back into it it smoke bad for a few minutes then clears up until you coast again. Is it the head gasket


no
when you are coasting , the inlet manifold vacuum can exceed 25 " mercury and that puts extra strain on the valve stem seals and rings
if they are failed or the valve stems guides are worn then the vacuum sucks oil past the seals and down the valve stems into the combustion chambers , resulting in the smoke when the system again fires up on acceleration
find an accrdited service center with experience on the make of car, have them do a compression test (wet and dry) to determine engine condition and if the rings prove a good compression , then they will be able to change the valve stem seals with out removing he head/s
get quotes first

May 19, 2017 | Subaru Cars & Trucks

1 Answer

Can I fit valve stem seals without taking the head off on 1600 sentra 1997


No you can't..
Fitting valve stem seals involves removing the valve springs. This means the valve has to be held in place by a valve spring compressor (bought from almost any spares outlet). The springs are compressed by placing one end of the compressor tool on the valve face and the other end over the spring cap, then squeezing the tool to compress the spring, then removing the split collets that hold the spring in place, removing the spring cap and spring, then eventually you have access to the stem seals.
The head has to be removed to accomplish all this.

Mar 28, 2014 | 1997 Nissan Sentra

1 Answer

Chevy van


Smoking issues after warm start up are usually caused by brittle valve stem seals and oil leaks down through the valve guide. These can be changed on the engine without head removal. Just use a air compressor to keep the cylinder full of air with the valves closed then remove the rocker arms counting the number of turns to keep adjustment. With a on car spring compressor remove spring. The valve keepers can be tight in retainer so tapping the retainer with released tension they will break free. Most chevy heads have 2 oil seals a hat type (positive spring seal) and a o-ring seal. With spring removed take both seals off there are very brittle. Replace the hat seal first then install spring with retainer. the o-ring seal needs to stay in retainer and in lower groove then install valve keepers and slowly release the spring pressure, Once spring compressor is removed then tap valve stem with hammer to seat keepers then release air. Also check Intake manifold bolts for proper torque. A loose manifold will also **** in oil bolt torque is 35-40 ft. lbs cast iron 30-35 ft. lbs aluminum manifold.

Nov 05, 2013 | 1992 Chevrolet G20

1 Answer

Dark water coming out tail pipe when I start my 1993 Saturn sl1


Oil in a cylinder is never good. There are several ways for the oil to get there and different prices to fix it.

Valve stem seals go directly around the valve and keep oil from the valve train from entering the combustion chamber. A worn or cracked seal can let oil run into the wrong place. Depending on how the camshaft and valve lifters are fitted, the valve stem is at the bottom of the camshaft and lifter. The overhead Cam models bury to valve stem deep inside the head.

Good practice would be to replace all seals at same time, but 1 cylinder could be done independently. But you are usually doing 90% of the work to do 1 set of seals. If a V-6 engine do the bad bank completely.

Head gasket, oil circulates through passages. Requires removal of everything above the head so gasket can be changed.

Bad Oil ring on Piston. Requires removal of head, oil pan, possibly motor to access crankshaft.

There are some tests which can help tell the difference between the problems. Some of it is visual so you need some disassembly for that. This is not going to be as simple as changing a waterpump or an Alternator. But the valve stem seals are reasonable and the head gasket is not so bad.

Can not say what labor will cost, but it will be probably 80% of the bill.

Oct 20, 2012 | 1993 Saturn SL1

1 Answer

My 2000 Mercury Cougar V6 is blowing white smoke in the morning, and loosing a little coolant. I think it should be the head or plenum gasket, or more likely a worn valve stem stem seal. I'm looking for...


You have a blown Head Gasket, if you have had leaky Valve Stem Seal the color of the smoke would be blue, for the burning oil. Either way it is more beneficial in the long run to pull the Head off and replace both the Head Gasket and install a re-built Head, instead of doing a Band-Aid repair.

Aug 13, 2010 | Mercury Cougar Cars & Trucks

2 Answers

Engine light is on,the engine shakes/sputters but doesn't die(seems to want to though)especially when speed reaches 45 or over.changed spark plugs,found oil in that area(?)have began to smell gas(?) inside...


Had one of these a while ago in all honesty there not good vehicles thats being polite. How much oil was there? was it around the plugs or on the electrode part of the plug inside the head? if on the plug end then the valve stem oil seals have gone so you would need to take the head off and take the valves out fit the seals and then regrind the valves back correctly. Most likely it will cost about £450 as you will need a head gasket and bolts etc etc cam belt. thats if it is the valve stem oil seals.

Jan 13, 2010 | 1998 Kia Sportage

3 Answers

WHAT'S LEAKING? Is it the valve stem seals or piston rings???


Hi,
If it is the valve seals,you can replace the head,but it would be cheaper to replace the seals,If you pull the head,you can do a leak down test on the pistons to check the rings as well.


Please Rate This FixYa Solution.

Jan 23, 2009 | 2004 Ford Crown Victoria

1 Answer

Oil burning at idol


You have got valve stem clearance or valve stem seal issues You can change the seals yourself with a few special tools and a manual. The stems are another story. They require machine shop equipment and removal of the head/heads.I would try the seals first. A four cylinder would take an average handy guy about 4 hours.

Dec 15, 2008 | 1993 Nissan Pickup

2 Answers

1993 TOYOTA TERCEL 1500cc Valve Seals Replaced now smokes much worse


You either have had the wrong valve seals installed, they are physically missing, or the valves are incorrect (too loose in the guides/stem too thin). The rocker arm seals will not contribute to your issue. If it did not have the oil smoke before you took the head off, the issue is with whatever the machine shop did. Valve seals have to fit TIGHT, or oil will go down the valve stem into the intake.
Take the head back to the machine shop & tell them to fix it. For free.

Aug 23, 2008 | 1993 Toyota Tercel

1 Answer

Celica ST 1.8 Valve stem seals


When does it smoke? All of the time, or just when you start it? If it smokes all of the time, consider piston rings. If you have lots of smoke when first starting only, valve seals and possibly worn valve guides are the culprit.

Jul 29, 2008 | 1998 Toyota Celica

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