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Adjust valves - Corvette Chevrolet Cars & Trucks

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  • Anonymous Aug 10, 2008

    how do you adjust valves on a 1995 chevrolet lumina 3.1 motor

  • dreamweaver1 May 11, 2010

    What kind of motor? What Year? what type of camshaft? If they are hydralic lifters they will set diff than solid or roller lifters.

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Ok I am sory to brake the news to you but there is no adjustment on a 3.1L the rocker arms are torqued to specification and the lifters are the Hydraulic adjustment.
I hope this helps.

Roy

Posted on Oct 31, 2009

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What is the clearance between the rocker arm and the valve spring in a GM 2.2L motor


there is no specification for what you want
the valve clearance is between the end of the rocker arm and the end if the valve stem
the stem end is proud of the spring retainer so if your rocker arm is touching the spring retainer , you have a big problem as for the procedure it is set out in the workshop manual but if you don't have a manual it can be done like this
you will need the firing order of the engine first
now adjust no 1 piston valves when the next piston to fire has the valves in the rock position
that is the exhaust valve just closing as the inlet is just opening a bit of movement of the crank makes either valve move up or down
adjust no 1 piston valves
now move on to the next piston to fire and adjust the valves that were rocking
follow that procedure until all the valves are adjusted
for example
on a 4 cylinder engine with a firing order of 1--3--4--2
bring up no 1 piston and adjust the valves when the valves on no 3 piston are rocking
next piston to fire is no 4 so adjust no 2 piston valves
next piston to fire is no 2 so adjust the valves when no 1 valves are rocking
the procedure is the same for engines with any number of cylinders

Oct 19, 2016 | Cars & Trucks

1 Answer

How do I adjust valve clearance on 912/3 deutz engine


firing order is 1-2-3
so when no 2 cylinder valves are in the rock position ( exhaust closing at the same time as inlet is opening) that will be no 1 piston tdc compression stroke adjust the both valves to the specification
.006" both valves
when no3 piston has valve rock adjust no 2 cylinder valves
when no 1 has valve rock adjust no 3 cylinder valves
go google and type in valve clearance of deutz 3 cylinder engine
there is another method explained where inlet of one cylinder and exhaust
this is done with one full revolution of the crank
www.deutzamericas.com page 42 of the manual

Oct 16, 2016 | Cars & Trucks

1 Answer

How to adjust valves on Toyota 1991 23re engine


Very carefully my friend. Kidding. Ok, remove the valve cover and anything in your way of removing it. By hand, with a socket and ratchet, on the crankshaft bolt head, turn the engine over to get #1 piston to top dead center on compression stroke. You'll need to find out what the valve lash should be in order to adjust properly, I run the 22R engines and only have specs for that, and have a feeler gage to place between the valve head and rocker arm. Check the gap on the intake valve for it is in position to adjust now because the cam lobe is at the farthest away from the valve. If it needs adjusted closer, turn the nut loose and screw the center in to tighten and out to give more gap, then tighten the jam nut after adjusted. Now turn the crank to bring #3 to top dead center and adjust that intake. Once done go back to #1 exhaust and adjust it. You'll know when the #3 is TDC when the rocker is loose on intake valve along with #1 exhaust. Now bring #4 piston up to TDC and adjust intake valve. Like I said, you'll know when it's @TDC when that rocker is loose, but with the spark plugs out you can stick a screwdriver in the plug hole to be sure it's up. Firing order on 4 cylinders is 1-3-4-2 so do your adjustment in that order for each intake valve and go back to the last one adjusted and do the exhaust valve.

Dec 01, 2014 | Toyota Cars & Trucks

1 Answer

When the valves are adjusted on the de-compression stroke can they be re-adjusted or is the head now faulty?


valves should always be adjusted with the cylinder being adjusted at top dead center(tdc). if you can rotate the motor by hand you can adjust the valves with no damage having being done.

Jul 29, 2014 | 1992 Toyota Pickup

1 Answer

Valve settings


- Pull the hand brake and put transmission in neutral.
- Remove spark plug cords.
- Remove the spark plugs.
- Remove the Tappet cover
- Lift up the left front wheel.
Cylinder number 1 is toward the pulleys and belts side.
- Rotate the crankshaft anticlockwise with socket and extension rod and bring the valve tappets (intake and exhaust) No. 4 cylinder on dancing position.
NOTE: THERE ARE OTHER WAYS ALSO TO ADJUST THE FOUR VALVES AT A TIME. BUT AS DIY FOLLOW THE FOLLOWING METHOD TO AVOID ANY CONFUSION.
- Adjust the valve clearance of number 1 cylinder.
Valve clearance:
Intake 0.18 - 0.22 (cold) Exhaust 0.25 - 0.28 (cold)
- Rotate the crankshaft anticlockwise to bring the valves of cylinder 2 on dancing position and adjust the valves of No. 3 cylinder.
- Similarly rotate the crankshaft to bring the valves of No. 1 cylinder on dancing position and adjust the valves of No. 4.
- Rotate the crankshaft anticlockwise to bring the valves of cylinder No. 3 on dancing position and adjust the valve clearance of No. 2 cylinder.

May 04, 2013 | 1999 Honda Civic

1 Answer

I need the required valve & inyector clearance on a M11 engine


Cummins M11

Intake valve clearance 0.010 inch
Exhaust valve clearance 0.024 inch

The firing order is 1-5-3-6-2-4 and that is the order the valves should be adjusted started with first timing mark on main pulley adjust cylinder number 1 The valves and injector should be adjusted at the same time The crankshaft is then rotated 120 degrees to next timing mark and cylinder 5 is adjusted, the crank is rotated again 120 degrees to next timing mark and cylinder 3 is adjusted.then back to the first timing mark, cylinder 6 is adjusted, etc/

Adjusting nut on plunger should be adjusted to the point where you feel the plunger just reaches the bottom.of travel/bottoms out.

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2 Answers

Valve lash procedure


i need to know how to adjust the valves on 02 pont sunfire

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2 Answers

Overhead valves making noise like they need ajusting


Valve Lash ADJUSTMENT 1.6L Engines NOTE: Measure valve clearance with the engine cold.
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Remove the valve cover.
  3. Set the engine to Top Dead Center (TDC) of the compression stroke for the cylinder to be adjusted.
  4. Check the valve clearance. The valve clearance specifications are as follows:
    • Intake valves: 0.005-0.007 inches (0.13-0.17mm)
    • Exhaust valves: 0.005-0.007 inches (0.13-0.17mm)
  5. After adjustment, tighten the locknuts to 11-14 ft. lbs. (15-19 Nm).
  6. Repeat for each valve to be adjusted.
1.8L, 2.0L and 2.5L Engines The 1.8L, 2.0L and 2.5L engines utilize automatic hydraulic lash adjusters to maintain proper valve lash at all times. Periodic valve lash inspection and adjustment is not necessary or possible. prev.gif next.gif

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2 Answers

New rebuild chatters


adjust your valves your oil pickup tube needs to be adjusted you need feeler guages to adjust the valves down properly
make sure lifters and oil pick up tubes are not clogged

feeler guage is---> thin pieces of metal cut to different sizes to hold under valve adjusters till the play and chatter gone
check by book what the feeler size needed for adjustment

Jun 07, 2008 | 1983 Chevrolet C3500

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