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How to replease spring valves - 2002 Mitsubishi Montero Sport

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How i do replease cabin air filter

Open your glove box, remove the little shock on the right side
take your hands on both sides of the glove box and squeeze inwards to collapse the sides of the box at the same time as pulling outwards. The glove box will come out or drop down. Behind there is a small cover approx 2" x7" there is a tab, remove it bt unclipping it and pollen filter is inside. Keep in mind there are some with a tray attached to the opening cover, make sure if this is what you have, put the pollen filter under the clips in the tray as it was or you may hear noise after. Also note, if you have leaves inside they will drop inside the fan blade if your not careful. If this happens you can either vacuume them out or use compressed air in vents to try to blow out or use your fingers, of course with it turned off for safety. I always use fingers to reach in and check anyways for leaves or debris. Good luck

Feb 14, 2015 | 1996 Toyota Camry

1 Answer


there is not enough spring travel on the valves The rockers used are incorrect for the cam used and the lift of the cam is making the rocker push the valve too far down and is binding up the spring. You may have something else wrong like extra spacers under the valve springs , valve guides not in far enough valve spring retainers not correctly positioned or wrong inner spring that is binding up. Turn the cam over carefully and see it the distance in the spring coils disappears before fully open the valve.

Dec 26, 2014 | 2000 Plymouth Voyager

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

1998 toyota 3.0 valve seal replace

Yes and no.
Depending on how the lifters and rocker arms sit on the valves, you might be able to apply air pressure to the cylinder to keep the valves closed while taking the springs off. If you take the springs off without pressure the valves can fall into the cylinders.
The seals are under the valve springs.

Jul 12, 2012 | Cars & Trucks

2 Answers

How are valves removed after cam is removed

You need to take the head off, and you need a valve spring compressor. Basically the valve spring compressor is like a big clamp, as you clamp the spring you will need to be careful as two small collets will fall out. They are small half cone shaped items. When you pull the collets out, slowly release the compressor then take off the top plate and remove the spring/s (sometimes there is a smaller spring inside the bigger spring.). Take off all the springs and then gently remove the valve. Repeat for all other vavles.

One word of caution, grab a piece of cardboard. Say the top ears of a box mark numbers on it. If it is a 4 cyl and only has 2 valves per cylinder. Then you will need to mark it as cyl 1 in ex and then put each valve at the corresponding place. Inlet valve goes under the in mark. Or just get a permanant marker and mark the face of each. This way you won't mix them up.

Oct 04, 2011 | 2001 Isuzu Trooper

3 Answers

To change valveseals on 1999 4.2 v6 are they pressed on or can i air up cylinder and compress spring to change

  1. Remove the camshaft roller followers.
  2. Position the piston at the top of the stroke.
  3. Remove the spark plug and install compressed air in the cylinder to hold both valves in position. CAUTION: If air pressure has forced the piston to the bottom of the cylinder, any loss of air pressure will allow the valve to fall into the cylinder. If air pressure must be removed, support the valve prior to removal.
  4. Use the Valve Spring Compressor to compress the valve springs.
  5. Remove the valve spring retainer keys, the valve spring retainers, and the valve spring.
  6. Using the Valve Stem Seal Replacer 303-383 (T91P-6571-A) remove the valve stem seals.

Mar 06, 2011 | 1999 Ford Econoline

1 Answer

How difficult is it to replace valves in a 85 Toyota Pickup?

It can be done, but it is classified under the engine overhaul reconditioning, which can be time consuming and expensive for an engine machinist to do. To do it yourself is not usually recommended.--- REMOVAL & INSTALLATION A valve spring compressor is needed to remove the valves and springs; these are available at most auto parts and auto tool shops. A small magnet is very helpful for removing the keepers and spring seats. Set the head on its side on the bench. Install the spring compressor so that the fixed side of the tool is flat against the valve head in the combustion chamber, and the screw side is against the retainer. Slowly turn the screw in towards the head, compressing the spring. As the spring compresses, the keepers will be revealed; pick them off of the valve stem with the magnet as they are easily fumbled and lost. When the keepers are removed, back the screw out and remove the retainers and springs. Remove the compressor and pull the valves out of the head from the other side. Remove the valve seals by hand and remove the spring seats with the magnet. Fig. 1: After compressing the valve spring, be careful removing the keepers--they are easily fumbled 85783113.gif
Fig. 2: Always install new valve stem seals 85783114.gif
Fig. 3: Lightly tap each assembled valve stem to ensure correct fit of the keepers, retainer and seals 85783115.gif
Fig. 4: Special tool to remove the valve spring--you also need tool to hold valve up 85783273.jpg
Fig. 5: Removing the keepers with a magnet 85783274.jpg
Fig. 6: Removing the valve spring 85783275.jpg
Fig. 7: Removing the valve seal 85783276.jpg
Fig. 8: Installing the valve seal 85783277.jpg
Since it is very important that each valve and its spring, retainer, spring seat and keepers is reassembled in its original location, you must keep these parts in order. The best way to do this to cut either eight (four cylinder) or twelve (six cylinder) holes in a piece of heavy cardboard or wood. Label each hole with the cylinder number and either IN EXp>After lapping each valve into its seat (see Valve Lapping below), oil each valve stem, and install each valve into the head in the reverse order of removal, so that all parts except the keepers are assembled on the stem. Always use new valve stem seals. Install the spring compressor, and compress the retainer and spring until the keeper groove on the valve stem is fully revealed. Coat the groove with a wipe of grease (to hold the keepers until the retainer is released) and install both keepers, wide end up. Slowly back the screw of the compressor out until the spring retainer covers the keepers. Remove the tool. Lightly tap the end of each valve stem with a rubber hammer to ensure proper fit of the retainers and keepers. prev.gif next.gif

Dec 19, 2010 | 1985 Toyota Pickup

2 Answers

How to chage valve seals

1- disconnect battery
2- remove valve cover
3- remove timing cover
4- set engine on top dead center #1cylinder
5- remove timing belt ( mark direction if re-using belt)
6- remove camshaft & rocker arms
7- remove spark plugs
8- install compression tester hose in cylinder that you want to replace seals and apply 90 to 120psi of air
9- install valve spring compression too and compress valve spring
10- remove valve spring locks and valve spring
11- remove old valve seal and replace with new
12- reverce order to reasable

Nov 16, 2010 | 2003 Hyundai Accent

1 Answer

How do I replace the valve spring on 92 Chevy C1500?

Valve springs are most easily changed with cyl head removed. However, You can use a length of closeline (cotton type) fed into spark plug hole, pushing as much as possible into combustion chamber, then GENTLY turning crankshaft by hand so the piston pushes line up against the valves. DO NOT CRANK ENGINE WITH STARTER OR TURN ENGINE FOR ANY REASON TILL THE JOB HAS BEEN COMPLETED AND LINE HAS BEEN REMOVED.
after inserting line, remove the rocker arm from the valve and use a valve spring compressor (the kind that looks like a top terminal battery terminal remover) to compress the valve spring. Remove the two keepers that hold the valve from falling through the retainer (use a magnet and small screwdriver for this) then lift the spring off the valve. Compress the new spring and replace in the reverse order, making sure the keepers stay in slot at valvestem top.Once valve spring has been installed, turn engine backwards to relieve tension on line you installed and remove all of lit from cylinder. Replace rocker, and adjust per specs. (usually 1/4-1/2 turn down after becoming quiet while running)
good luck

Mar 03, 2009 | Chevrolet 1500 Cars & Trucks

1 Answer

Oil on sprark plugs

  1. Disconnect the negative battery terminal.
  2. Remove the valve cover, using the proper procedures.
  3. Remove the camshaft, shims and rockers, if equipped, using the proper procedures.
  4. Remove the spark plugs.
  5. Rotate the engine to Top Dead Center (TDC) for each cylinder's seals that are being replaced; e.g., if replacing the No. 2 cylinder valve seals, have the No. 2 cylinder at TDC. Use a coat hanger put down into the cylinder to determine when it is at TDC.
  6. Attach a fixture at the flywheel or the front of the engine to prevent the engine from rotating. Make sure the fixture damages no components.
  7. Thread an adapter into the spark plug holes that can be hooked up to a shop compressor air hose.
  8. Apply 90 psi of shop compressor air to the adapter hose. This is done to keep the valves from dropping down into the cylinder when the valve springs are removed.
CAUTIONTo avoid personal injury, wear eye and ear protection. Keep hands and clothing away from engine parts that rotate, in case the engine does rotate from the cylinder air pressure.
  1. With the cylinder under pressure, remove the valve spring retainer and the spring, using a spring compressor tool. Hitting the spring retainer with a soft hammer may help loosen the valve keepers, if the keeper will not move downward when trying to compress the spring.
  2. With the valve spring removed, remove the oil seal.
To Install:
  1. Install a new seal, using Toyota Special Service Tool (SST) 09201-41020, or equivalent.
  2. Reinstall the valve springs (See Valves).
  3. Release the air pressure and reverse the removal procedures to complete installation.
  4. Connect the negative battery terminal, start the engine and check for leaks.
0900c15280046373.jpgFig. 1 Removing the valve sealsCelica 0900c15280046378.jpgFig. 2 Intake and exhaust valve sealsCelica 0900c15280046379.jpgFig. 3 Installing the valve sealsCelicaWith Cylinder Head Off Engine
  1. Disconnect the negative battery terminal.
  2. Remove the cylinder head, using the proper procedures.
  3. Remove the valve and spring (See Valves).
  4. Remove the oil seal.
To Install:
  1. Install a new seal, using Toyota Special Service Tool (SST) 09201-41020, or equivalent.
  2. Reinstall the removed components to complete installation.
  3. Connect the negative battery terminal, start the engine and check for leaks.

Aug 25, 2008 | 1990 Toyota Celica

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