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88mack e63oo 4valve valve adjustment procedure

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I have a 2004 Nissan pathfinder 3.5l SE with 109500 miles on the clock, and hear a ticking noise coming from the right valve cover does this model have a valve lash adjustment procedure.


The procedure is to check the gaps on all the valves then see how much they are out side the recommended gap
remove the camshafts and take the followers off the valve be careful to not lose the adjustment spacer from inside the follower you then measure the spacer to either go thicker or thinner to get the required gap do that with all followers that need adjustment refit camshafts and reset timing then remeasure the valve gaps

Dec 10, 2016 | 2004 Nissan Pathfinder

1 Answer

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

Valve clearance


Valve clearance Google search your year make and model valve clearance. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
Checking and adjusting valves
Engine Valve Adjustment Procedure The Right Way
Valve Clearance Adjustment
Valve clearance Google Search

Aug 10, 2016 | Cars & Trucks

1 Answer

How do I adjust valves by myself?


How to Adjust Valve on a Small Block Chevy - YouTube

? 5:16
www.youtube.com/watch?v=d_IOYwwKjTE
Dec 23, 2011 - Uploaded by MuscleCarEngines This video shows our procedure how to properly adjust valves. This works on all .... Buy the book called" How ...

Sep 30, 2015 | Cars & Trucks

1 Answer

What are the valve lash specs for 2007 Honda Accord V6?


There is a specific procedure for setting valve clearance . I highly recommend getting a repair manual for the correct specs & procedure. The engine must be at TDC with the #1 cylinder on the compression stroke , that will allow you to adjust ONLY certain valves , then you have to turn the engine one turn to TDC again only now #1 will be on the exhaust stroke & the rest of the valves can be adjusted . it's important that you know the difference between the two !

Jan 08, 2015 | Honda Cars & Trucks

1 Answer

Ga14 valve clearance


GA14 NISSAN SENTRA model 1988 no rocker arm direct to cam lobes all intake and exhaust valve. what the procedure to adjust the between the camshaft lobes to valve steam.

Feb 05, 2014 | 1988 Nissan Sunny

2 Answers

Valve lash procedure


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

Nov 20, 2011 | 1991 Chevrolet K1500

1 Answer

Rocker arm torque specs on a 97 gmc jimmy 4.3


  1. For the 4.3L engines which are equipped with screw-in type rocker arm studs with positive stop shoulders, tighten the rocker arm adjusting nuts against the stop shoulders to 20 ft. lbs. (27 Nm) on 1994-96 models and 18 ft. lbs. (25 Nm) on 1997-99 models. No further adjustment is necessary, or possible.
  2. For most 4.3L engines which are not equipped with screw-in type rocker arm studs and positive stop shoulders, properly adjust the valve lash. For details on valve lash adjustment, please refer to the procedure in Routine Maintenance . (see below)
4.3L Engine

The 4.3L engines may be equipped with either of 2 rocker arm retaining systems. If your engine utilizes screw-in type rocker arm studs with positive stop shoulders, no valve lash adjustment is necessary or possible. If however, you engine utilizes the pressed-in rocker arm studs, use the following procedure to tighten the rocker arm nuts and properly center the pushrod on the hydraulic lifter:
  1. To prepare the engine for valve adjustment, rotate the crankshaft until the mark on the damper pulley aligns with the 0? mark on the timing plate and the No. 1 cylinder is on the compression stroke. You will know when the No. 1 piston is on it's compression stroke because both the intake and exhaust valves will remain closed as the crankshaft damper mark approaches the timing scale.

Another method to tell when the piston is coming up on the compression stroke is by removing the spark plug and placing your thumb over the hole, you will feel the air being forced out of the spark plug hole. Stop turning the crankshaft when the TDC timing mark on the crankshaft pulley is directly aligned with the timing mark pointer or the zero mark on the scale.
The valve arrangement is as follows:



E-I-I-E-I-E (right bank-front-to-rear) E-I-E-I-I-E (left bank-front-to-rear)

  1. With the engine on the compression stroke, adjust the exhaust valves of cylinders No. 1, 5 & 6 and the intake valves of cylinders No. 1, 2 & 3 by performing the following procedures:
    1. Back out the adjusting nut until lash can be felt at the pushrod.
    2. While rotating the pushrod, turn the adjusting nut inward until all of the lash is removed.
    3. When the play has disappeared, turn the adjusting nut inward 1 3 / 4 additional turns.

  2. Rotate the crankshaft one complete revolution and align the mark on the damper pulley with the 0? mark on the timing plate; the engine is now positioned on the No. 4 firing position. This time the No. 4 cylinder valves remain closed as the timing mark approaches the scale. Adjust the exhaust valves of cylinders No. 2, 3 & 4 and the intake valves of cylinders No. 4, 5 & 6, by performing the following procedures:
    1. Back out the adjusting nut until lash can be felt at the pushrod.
    2. While rotating the pushrod, turn the adjusting nut inward until all of the lash is removed.
    3. When the play has disappeared, turn the adjusting nut inward 1 3 / 4 additional turn.

Sep 23, 2010 | 1997 GMC Jimmy

1 Answer

I need the engine valve spec for a 1984 chevy 6.2 diesel. We are adjusting the valves.


VALVE ADJUSTMENTS All gasoline and diesel engines in this guide use hydraulic valve lifters, which require no periodic maintenance or adjustment. However, in the event of cylinder head removal or any operation that requires disturbing or removing the rocker arms, the rocker arms must be adjusted in order to position the pushrods to allow the hydraulic lifters to maintain zero lash. Refer to the valve lash adjustment procedure under Rocker Arms, earlier in this Section.

Aug 21, 2010 | 1984 Chevrolet K1500

2 Answers

What is the current correct procedure for setting valve lash on a GM 2.8L / 3.1L V6 ? I understand the procedure in the service manual and the Haynes manual has been updated to a new procedure. An engine...


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

Mar 02, 2010 | 1988 Pontiac Fiero

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