Question about 1994 Isuzu Pickup

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94 isuzu pickup 2.3 liter

To adjust the valves, all manuals say "zero lash" while cold, but none tell how to physically achieve this. Turn the screw in or out all the way? I'm not a fool, just lacking actual info. Thanx

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  • Anonymous Jan 17, 2009

    need to know the order to adjust the valves

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5 Suggested Answers

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SOURCE: Where is slave cylinder for clutch on 1994 Isuzu pickup 2.3 litre

To determine which type of clutch you have, servo hydraulic or cable.
Look down past the engine bell housing and determine the existance of a hydraulic clutch slave cylinder.(a piece of casting with a rod facing towards the rear of the vehicle pocket into a bracket protruding out of the gearbox bell housing. As well as a pipe and bleed nipple to be crude)
(which I believe you have).The hydraulic fluid for this unit is sourced from the brake master cylinder reservoir via a sneaky pipe partially obscured to the clutch master cylinder on the internal firewall.If you have no clutch slave cylinder near the bell housing there would be an obvious bounden cable running from the firewall down to the outer of which will be stopped at a bracket hanging off the engine.The inner will continue to a bracket protruding from the gearbox bell housing.

Posted on Mar 05, 2009

  • 35 Answers

SOURCE: 1995 isuzu 2.3 pickup broken timing belt

i believe that all motors are now 0 clearance valve trains,, this doesnnt allways mean that there is damage due to belt or timing falure

Posted on Mar 30, 2009

  • 36 Answers

SOURCE: Where is the fuel filter located on a 1990 Isuzu

The filter is located on the frame rail by the passenger side rear wheel.

Posted on Oct 18, 2009

  • 68 Answers

SOURCE: where is the distribtor?

you have a DIS (direct ignition system) it consists of a coil pack,ignition module,crankshaft position sensor and ECM. there is 2 on your vehicle. if you have no spark check your crank sensor or ignition module. or goto local auto store and get a spark check for 5 bucks which plugs inline of the plug wires either at the coil or plugs.hope this helps

Posted on Jul 13, 2010

gearhead97
  • 60 Answers

SOURCE: How to replace a starter

This starter for an experienced mechanic will take about two hours to replace. I hope this helps!! Thanks!!

Posted on Oct 06, 2010

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1 Answer

Adjust rocker arms on 1990 2.9 ford


this is from the AutoZone web site.

2.9L Engine
No periodic valve lash adjustments are necessary on this engine. The engine utilizes a hydraulic valvetrain to automatically maintain proper valve lash. However, some earlier models have an adjusting screw on the rocker arm, which is used when assembling the engine to properly preload the lifter. If the engine has been disassembled, and the valve train parts were not kept in order, or there is an audible sound from the rocker arms while the engine is running, perform the adjusment procedure below.
The following procedure should be performed on a cold engine.
  1. On the cylinder to be adjusted, position the cams so that the tappets are in the base circle area.
  2. Loosen the adjusting screws until a distinct lash between the roller arm pad and the valve tip can be noticed.

The plunger of the hydraulic tappet should now be fully extended under the load of the internal spring.
  1. Carefully screw in the adjustment screws until the roller arms slightly touch the valves.
  2. To achieve the normal working position of the plunger, screw in the adjusting screw 1 1 / 2 turns, equivalent to 2mm.


  3. here is the site address. scroll down the page & you will see your engine size - 2.9
SAVE 20 GET BONUS 10 GIFT CARD ON ONLINE SHIP TO HOME ORDERS OF 100 OR MORE

Feb 06, 2015 | Ford Cars & Trucks

1 Answer

How to adjust valve lash on a 1990 Geo Storm


its an Isuzu engine.
there are 3 engines.
4XE1, SOHC 1.6L (base)12valves
4XE1, DOHC , 1.6L same as above but now with 16valves.
4XE1, DOHC, 1.8L bends valves if belt snaps...
note the bad idea of ISUZU calling all 3 engine same name.
a horrid idea.
which one? the second was in USA and Canada only.
the second one was offered as the GSI. is yours that?

so I will attempt to guess for you, its the base engine.
(odds of coin toss)
toss #2, USA, SOHC
guess 3: did a new belt and want to do lash next. Cam belt>
No job stated so i guess 3 times.
Just lash.
SOHC 1.6L only (FSM book quote)
Check the valve lash between the rocker arm and valve stem on both the intake and exhaust valves on the number 1 cylinder, the intake valve(s) on the number 2 cylinder and the exhaust valve on the number 3 cylinder. If the valve lash on the intake valves is not 0.006 in. (0.15mm), adjust the valve lash. If the valve lash on the exhaust valve is not 0.010 in. (0.25mm), adjust the valve lash.

1.6L twin cam has shims.
1.8L has HLA , no lash to set.

HLA= Hydraulic Lash adjusters.

I posted this before, search for it. Im only doing 1 engine.

Apr 12, 2014 | 1990 Geo Storm

1 Answer

How do I adjust the rocker arm bolts for the valve lash on a 1985 Nissan 720 pick up Z24 engine


Guys he has a Z24, Not KA24, Z24 for one, Is carbed and has older lifters and valves. They need to be tuned to spec within a certain specific limit and the cams must be rotated in certain positions when doing different valves, etc... Shouldnt take very long normally and its not a hard process but if you have a tick, you really should get it checked out. Btw, the Z24 engine's idle isnt controlled by ecu at all or else the carb wouldnt need an idle adjustment screw.

May 27, 2012 | 1985 Nissan Pickup

1 Answer

Easy way to adjust valve lash on ford 262?


Hot Intake Valve Lash: 0.019"
Hot Exhaust Valve Lash: 0.019"

Cold Intake Valve Lash: 0.019"
Cold Exhaust Valve Lash: 0.019"

Setting valve lash while HOT is the preferred method.
This was from a 1963 Ford manual,,

Sep 26, 2011 | Ford F-100 Cars & Trucks

1 Answer

Well we tried adjusting the valves and then it will start and make a werid noise and then will be about to shut off and it doesnt sound right plezz can you help me? its a 1997 gmc 5.7 1500


With the Engine in the number 1 firing position, adjust the exhaust valves for cylinders number 1, 3, 4, and 8 and the intake valves for cylinders number 1, 2, 5, and 7.
Turn the valve rocker arm nut counter clockwise until the valve lash is felt in the valve pushrod.
Turn the rocker arm nut clockwise until all of the valve lash is removed (zero valve lash).
Zero valve lash can be felt by moving the valve pushrod up and down between your thumb and forefinger until there is no more up and down movement of the valve pushrod.
When all the valve lash is removed, then turn the valve rocker arm nut clockwise 1 additional turn (360 degrees).


With the engine in the number 6 firing position, adjust the exhaust valves for cylinders number 2, 5, 6, and 7 and the intake valves for cylinders number 3, 4, 6, and 8.

Follow the same steps as above.

Apr 01, 2011 | GMC Suburban Cars & Trucks

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

2 Answers

How to adjust valves on 94 toyota pu 2.4 liter


Link to a factory manual here:
http://myweb.dal.ca/is353832/93fsm/maintenance/2maint.pdf

You might as well inspect/replace the PCV valve while you're there.

Jul 24, 2010 | 1994 Toyota Pickup

3 Answers

94 isuzu pickup loping idle problem


I have a 91 pickup with the 2.3 engine. The problem that you are having is likely the same problem I have - and it is caused by the Mixture Control Valve. It is a white plastic barbell shaped device in a holder on the inside fender wall. There are two vacuum hoses going to it - one small diameter and a larger one. Air enters the bottom of the valve and is drawn through the larger hose. The amount of vacuum on the small hose regulates the amount allowed through the large hose. I haven't found one at a parts store nor have I found one in a junk yard just yet. The Isuzu dealer can order one, but as the parts guy said, "Isuzu is very proud of their part". It costs about $150. If you want to check yours, there are several things you can do: first, run the vehicle and put your hand under the valve - it will **** a lot of air all the time. You can pull the valve off the truck and pry the bottom off the housing. You will probably see the same thing I did - broken pieces that used to stop the air flow through the valve. Until you get a replacement, you can try what I did: 1. Pull the small vacuum hose off and let it lay loose, or 2. Pull the small vacuum hose off and let it lay loose AND block the large hose (or the bottom of the valve). In either case, you have to adjust the fast idle screw and/or mixture screw on the side of the carburator. If you adjust either screw, write down what you did, in case you get a new valve later. The diference between 1 and 2 is that 1 will run good once it is warmed up but will want to stall until it warms; 2 runs good both when cold and warm, but will idle faster than it should. Neither of these will make the truck run like it should, but it is a 100 times better than trying to drive it with the loping.

Nov 15, 2009 | 1994 Isuzu Pickup

1 Answer

How do I tighten the ac belt on my 94 isuzu pickup?


Undo nut on idle pulley and then turn the adjustment screw and re-tighten nut on idle pulley

Jul 15, 2009 | 1994 Isuzu Pickup

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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