Question about 2000 Isuzu Rodeo

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How do I find tdc on #2 cylinder when timing belt breaks

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Timng belt installation involves the #1 cylinder, not the #2 cylinder. Below is the picture of the timing marks for the 4 cylinder and the 6 cylinder:



how do I find tdc on #2 cylinder when timing belt - chuckster57_57.gif

Posted on Oct 17, 2011

  • 1 more comment 
  • Daniel Lamb Oct 17, 2011

    I did put all timing marks in place but I think Iam 1 full revolution out of time because engine runs poorly. Can I be 360 degrees out?

  • Chuck
    Chuck Oct 17, 2011

    If the marks are lined up prior to and after belt installation, then it's "in time"..If the belt broke then there is a good chance that a piston hit a valve and bent it. Do a compression test to verify damage or not.

  • Daniel Lamb Oct 18, 2011

    I brought the engine back in time (which all timing marks lined up) removed the belt rotated the crank one revolution reinstalled the timing belt and it runs fine. I think it is OK now,Thanks for the help.

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Trying to replace broken timing belt. Trying to set #1 cyl. to TDC manually. no compression reading on 1 &4, readings on 2 & 3. What could cause this?? HELP!!


Hole in the piston crown is the worst Charles, but let's not be pessimistic :>(

More likely valves open. At TDC firing stroke both inlet and exhaust valves should be closed. The flat, low part of the cam should be on the followers. So 1 and 4 have valves open, 2 and 3 are closed. If you turn the cam 180 degrees, you should have compression on 1 and 4 and no compression on 2 and 3.

The other thing though, is that when the timing belt breaks, the valves are often in the wrong place at the wrong time and can often meet the piston head on. This can bend the valves. or damage the piston. The normal advice is to remove the cylinder head to check, and then service the valves whilst you have it apart.

A job like this, you need a workshop manual.

May 18, 2016 | 1999 Toyota Camry

1 Answer

Can anyone help me with getting the timing right on my 94 2.3 l ford.im replacing the timing belt.the cam didnt move or the accessory gear,but the crank spun many times before i figured out how to break...


Usually there are markings on the crankshaft and the engine block that need to be aligned for it to be at TDC on number 1 cylinder. If not use this procedure. Remove the number 1 plug. Place your finger over the spark plug hole and have a helper turn the crankshaft in the direction of normal rotation until you feel the compression building in the cylinder, once you feel the pressure, remove your finger and slowly turn the crank until the cylinder comes to TDC (you can look inside with a flashlight to confirm and also look at the position of the crankshaft markings and rotor etc.,c to confirm. Once all marks are aligned, install the belt. Once installed and the tension is on it, turn it at least 2 complete turns to make sure all alignment marks stay where they should be, if they do, you're good to go!

Mar 19, 2015 | Cars & Trucks

3 Answers

Put on a new timing belt now it wont start


I need some clarification. Did you replace the belt because it broke? If so you may need to replace the head. The problem is if the belt breaks when your moving it usually damages the head and thus needs to be replaced.

Jul 25, 2012 | Plymouth Breeze Cars & Trucks

1 Answer

How do i set the valve timing if i cant see the timing marks on a VW 1.8 20valve golf cylinder head timing chain , i can only find the one on the belt side i have put the cam on TDC for the ex-valve but...


The 2 cams are linked with a chain at the rear of the cylinder head.

The cams need to be set so the slots on the chain sprockets line up with the cam tower caps with 16 links between cam caps.

You cannot see the front crank pulley tdc mark so you need to lock the engine at tdc with a screwdriver jammed into the timing hole on the bell housing after setting engine at tdc or use a DTI
to check to tdc in the #1 spark plug hole.

If the cams have not been disturbed you only need to set the belt cam sprocket to the mark and crank to tdc.....all this means pulling the core support into the service position so the belt tensioner can be locked down and/or doing a complete belt job along with a coolant pump if over 70,000 miles..

Aug 20, 2011 | Volkswagen Golf Cars & Trucks

2 Answers

Timing belt


TIMING BELT & SPROCKETS R & I
NOTE: Some procedures may differ slightly due to engine
construction.
Removal
1) Remove all necessary air ducts. Position No. 4 piston at
TDC of compression stroke. Align timing marks. See Fig. 2. Remove fan
and fan shroud. Remove belts. If necessary, remove radiator and
splashguard.
2) Prevent engine from rotating and remove crankshaft timing
pulley retaining bolt. Remove upper and lower timing belt covers.
Remove spring from tension pulley. Loosen adjusting bolt and move
pulley toward water pump. Remove timing belt.
CAUTION: Ensure pistons are at TDC when rotating camshaft or damage
may result.
Inspection
1) Handle timing belt carefully. Avoid twisting or kinking
belt. Do not allow belt to become contaminated by water, oil, dirt or
other contaminates. Inspect belt for cracks or damage. If necessary,
replace.
2) Measure tension pulley spring length and force. Spring
length should not exceed 2.76" (70.2 mm) and spring force should not
be less than 197-347 lbs. (27-48 kg).
3) Replace tension pulley spring if not within specification.
Installation
1) Pull tensioner fully toward water pump side and
temporarily tighten retaining bolt. Ensure No. 4 cylinder is at TDC on
compression stroke by rotating crankshaft until keyway aligns with
mark on front crankshaft seal housing (12 o'clock). Rotate camshaft
until timing mark on cam gear (arrow) aligns with mark on upper
camshaft cover (notch). See Fig. 2.
NOTE: When timing marks are aligned as stated above, No. 4 piston
is at TDC on compression stroke.
2) Position timing belt over crankshaft sprocket, oil pump
sprocket, camshaft sprocket and tensioner in that order. Ensure belt
is positioned in sequence given and without slack between sprockets.
Loosen tension sprocket adjusting bolt allowing spring tension to
tighten belt. Tighten adjusting bolt temporarily.
3) Temporarily install crankshaft pulley bolt and rotate
crankshaft 2 complete revolutions in opposite direction of engine
rotation, until marks on crankshaft and front oil seal retainer are
aligned again. See Fig. 2. Loosen tensioner lock bolt, allowing
tesioner spring to fully adjust tension. Tighten tensioner lock bolt.
4) Install timing belt covers. To complete installation,
reverse removal procedures. Tighten all bolts to specification. See
TORQUE SPECIFICATIONS table at end of this article.
Fig. 2: 2.3L & 2.6L Timing Alignment Marks
Courtesy of Isuzu Motor Co

Dec 13, 2010 | 1989 Isuzu Pickup 2WD

1 Answer

I need to know how to set the timing belt on a 1995 nissan 3.0 4x4 kingcab truck


I'm going to copy the procedure from Autozone.com below. I've never seen such a complicated way of getting the tension right, but better to follow their instructions, I guess. Note that they ask you to loosen the rocker shafts, but they never tell you to put them back. I will add that.

c42df83.gif
To install:

6. Remove both cylinder head covers and loosen all rocker arm shaft retaining bolts.

The rocker arm shaft bolts MUST be loosened so that the correct belt tension can be obtained.
  1. Install the tensioner and the return spring. Using a hexagon wrench, turn the tensioner clockwise, then temporarily tighten the locknut.
  2. Make sure that the timing belt is clean and free from oil or water, before installation.
  3. Install the timing belt. Align the white lines on the belt with the punchmarks on the camshaft and crankshaft sprockets. Be sure to have the arrow on the timing belt pointing toward the front belt covers.
A good way (although rather tedious) to check for proper timing belt installation is to count the number of belt teeth between the timing marks. There are 133 teeth on the belt; there should be 40 teeth between the timing marks on the left and right-side camshaft sprockets, and 43 teeth between the timing marks on the left-side camshaft sprocket and the crankshaft sprocket.
  1. While keeping the tensioner steady, loosen the locknut with a hexagon wrench.
  2. Turn the tension approximately 70-80 degrees clockwise with the wrench, then tighten the locknut.
  3. Turn the crankshaft in a clockwise direction several times, then slowly set the No. 1 piston to TDC of the compression stroke.
  4. Apply 22 lbs. (10 kg) of pressure (push it in) to the center span of the timing belt between the right-side camshaft sprocket and the tensioner pulley, then loosen the tensioner locknut.
  5. Using a 0.0138 in. (0.35mm) feeler gauge (the actual width of the blade must be 1/2 in. or 12.7mm thick), positioned as shown in the illustration, slowly turn the crankshaft clockwise. The timing belt should move approximately 2 1/2 teeth. Tighten the tensioner locknut, then turn the crankshaft slightly and remove the feeler gauge.
  6. Slowly rotate the crankshaft clockwise several more times , then set the No. 1 piston to TDC of the compression stroke; recheck all alignment marks.
  7. Install the upper and lower timing belt covers.
  8. Connect the negative battery cable.

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When installing the rocker arm shafts, be certain that they are installed in their original positions.
  1. Make sure the camshaft knock pin is at the top of the camshaft and that the lobe is not in the lifted position. If servicing the left-side cylinder head, set the No. 1 piston at TDC of its compression stroke, then tighten the rocker shaft bolts for cylinder No. 2, 4 and 6 cylinders. If servicing the right-side cylinder head, set the No. 4 piston at TDC of its compression stroke and tighten the rocker shaft bolts for cylinder No. 1, 3 and 5 cylinder rocker shaft bolts. Tighten all bolts gradually, in two or three stages, to 13-16 ft. lbs. (18-22 Nm).
  2. Install the cylinder head cover(s).

Sep 12, 2010 | 1995 Nissan King Cab

2 Answers

Looking for timing mark's for a 1997 camry with a 2.2 4cyl motor?


Hi,


You find the timing marks on the picture below.

moz-screenshot-2.pngaab8238.jpg



Removal
Remove auxiliary 1. drive belts.
2. Support engine.
Remove:
Engine mounting and bracket.
Timing belt upper cover [1].
3.
4. Turn crankshaft clockwise to TDC on No.1 cylinder. Ensure timing marks aligned [2] & [3].
Remove:
Crankshaft pulley bolt [4].
Crankshaft pulley [5]. Use tool No.09213-60017.
5.
6. Ensure timing marks aligned [2] & [3].
7. Slacken tensioner bolt [6]. Move tensioner away from belt and lightly tighten bolt.
Remove:
Timing belt lower cover [7].
Crankshaft sprocket guide washer [9].
Timing belt.
Tensioner pulley.

Installation
Installation
1. Check tensioner pulley for smooth operation.
2. Check free length of tensioner spring is 46,0 mm [8]. Replace spring if necessary.
3. Fit tensioner and spring. Ensure spring is connected correctly.
4. tighten bolt [6].
5. Ensure timing marks aligned [2] & [3].
6. Fit timing belt. Ensure belt is taut between sprockets.
Install:
Crankshaft sprocket guide washer [9].
Timing belt lower cover [7].
Crankshaft pulley [5].
7.
8. Slacken tensioner bolt 1/2 turn [6].
9. Turn crankshaft two turns clockwise to TDC on No.1 cylinder. Ensure timing marks aligned [2] & [3].
Turn crankshaft slowly 1 7/8 turns clockwise until crankshaft pulley timing mark [3] aligned with 45° BTDC mark [10] on
timing belt lower cover [7].
10.
11. Tighten tensioner bolt [6]. Tightening torque: 42 Nm.
12. Install components in reverse order of removal.
13. Tighten crankshaft pulley bolt [4]. Tightening torque: 108 Nm.
Manufacturer: Toyota

Jun 25, 2010 | 1997 Toyota Camry

2 Answers

Timing belt on my 2002 hyundai accent 1.6 liter 4cyl


DID THE BELT BREAK AND THEN IT WAS CHANGED. If so then you may have bent valve. IF NOT then vehicle may be timed wrong. Here is a diagram of your timing marks, http://www.2carpros.com/car_repair_information/tec_info/2002/hyundai/accent/2002_hyundai_accent_timing_belt_diagram_marks.htm contact if you need more help. Thanks for using FIX YA

Jan 23, 2009 | 2002 Hyundai Accent

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