Question about 1988 Toyota Supra

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Timing on a 88 toyota supra turbo

How do you know which hole the dowels go in and the cam drives. Also how do you know how to position the can position sensor

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  • Anonymous Feb 13, 2009

    how do you put the cam timing so the car will get spark?

  • Anonymous Mar 17, 2014

    i have a 88 supra turbo 60 mph am ok but70 and up i overheat y is that please help me

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  • Contributor
  • 18 Answers

Email me at 08TurboScion@comcast.net I will send you the engine schematic for the 2JAZE motor

Posted on Jul 21, 2008

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1 Answer

Timing set


Chain

Print


REMOVAL & INSTALLATION

4.3L, 5.0L, 5.7L and 7.4L Engines
See Figures 1, 2, 3, 4, 5 and 6

  1. Remove the timing cover. This will allow access to the timing chain.
  2. Crank the engine until the timing marks on both sprockets are nearest each other and in line between the shaft centers.



0996b43f80219aca.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 1: Crank the engine until the timing marks on both sprockets are in line

  1. On 1996-98 vehicles remove the crankshaft position sensor reluctor ring, if equipped. On 7.4L engines tool J-41371 or its equivalent puller must be used to remove the reluctor ring.
  2. Take out the bolts that hold the camshaft gear to the camshaft. This gear is a light press fit on the camshaft and will come off easily. It is located by a dowel. The chain comes off with the camshaft gear.



0996b43f80219acb.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 2: Remove the camshaft gear retaining bolts


0996b43f80219acc.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 3: Remove the camshaft gear and timing chain
A gear puller will be required to remove the crankshaft gear.
To install:

  1. Without disturbing the position of the engine, mount the new crankshaft gear on the shaft, and mount the chain over the camshaft gear. Arrange the camshaft gear in such a way that the timing marks will line up between the shaft centers and the camshaft locating dowel will enter the dowel hole in the cam sprocket.
  2. Place the cam sprocket, with its chain mounted over it, in position on the front of the truck and pull up with the three bolts that hold it to the camshaft.
  3. After the gears are in place, turn the engine two full revolutions to make certain that the timing marks are in correct alignment between the shaft centers. Tighten the camshaft sprocket bolts (and nut on the 4.3L) to 21 ft. lbs. (28 Nm) on 1988-95 models. On 1996-98 models, tighten the bolts to 18 ft. Lbs. (25 Nm). On the 7.4L, tighten them to 20 ft. lbs. (26 Nm) on 1988-95 models. On 1996-98 models, tighten the bolts to 25 ft. Lbs. (34 Nm).

When installing the crankshaft position sensor you must use install a new oil ring seal onto the sensor.
  1. Install the crankshaft position sensor reluctor ring (if equipped), onto the crankshaft until it is firmly seated against the crankshaft sprocket. On 1996-98 7.4L vehicles replace the reluctor ring with a new component.
  2. Install the front cover, torsional damper, water pump and the radiator.



0996b43f80219acd.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 4: A gear puller will be required to remove the crankshaft gear


0996b43f8020d5d9.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 5: Timing mark alignment-4.3L, 5.0L, 5.7L and 7.4L engines

Apr 20, 2013 | 1993 Chevrolet Suburban

1 Answer

I have done engine overhall for my mazda 6 2003.i want to know how set timing and the timing marks?


there are special tools pin to lock crank in correct position and cams have flat plate that goes across into both at rear of cams small section goes up from memory, the cam gears have no dowel pin/locating pin to camshaft you do bolts up last when all are locked in position and grenade pin (locking)pin in tensioner is removed and chain is tight then hold cams with shifter or spanner(wrench) on cam flats and do up cam gear to camshaft bolts on each cam.
hole in front cover just above crank pulley at 11O clock, blind blanking plug must be removed to put in chain tensioner pin, crank blanking plug on your left side when looking at crank pulley(side of block) remove and locking pin goes into there when at TDC no1. and cams should be in position to lock with plate as described above.may not be any timming marks on chains or gears due to the locking tools needed and relied on for correct position.
good luck if you feel confident.
some Mazda dealerships may lend tools if you ask nicely or know some one.

Mar 10, 2011 | 2003 Mazda Mazda6

2 Answers

How do I replace the CAM sensor on a 1996 dodge neon?


Hi, my name is John I will do my best to assist you.

To Remove
  1. Disconnect the negative battery cable.
  2. Disconnect the filtered air tube from the throttle body and air cleaner housing.
  3. For SOHC engines, remove the air cleaner inlet tube.
  4. For SOHC engines, detach the electrical connectors from the engine coolant sensor and the camshaft position sensor.
  5. For DOHC engines, unplug the electrical connector from the camshaft position sensor.
  6. For SOHC engines, remove the brake booster hose and the electrical connectors form the holders on the end of the cylinder head cover.
  7. Unfasten the camshaft position sensor mounting screws, then remove the sensor.
  8. Loosen the screw/bolt attaching the target magnet to the rear of the camshaft.
To Install: NOTE: The target magnet has 2 locating dowels which fit into the machined locating holes in the end of the camshaft.

  1. Install the target magnet in the end of the camshaft. Tighten the retainer to 30 inch lbs. (3.4 Nm).
  2. Install the camshaft position sensor. Tighten the sensor mounting screws to 80 inch lbs. (9 Nm).
  3. For SOHC engines, place the brake booster hose and the electrical harness in the holders on the end of the valve cover.
  4. Attach the electrical connector(s) to the camshaft position sensor and coolant temperature sensor (if necessary).
  5. Install the air cleaner inlet tube and the filtered air tube.
  6. Connect the negative battery cable.
The camshaft position sensor is mounted to the rear of the cylinder head - SOHC engine shown


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Location of the camshaft position sensor - DOHC engine shown

tecnovative_140.gif

Unfasten the retaining bolt, then remove the target magnet from the rear of the camshaft - SOHC shown, DOHC similar

tecnovative_141.gif

The target magnet has 2 locating dowels for proper alignment during installation

tecnovative_142.gif

Feb 20, 2011 | 1996 Dodge Neon

1 Answer

How do i reset the timing in a 1997 z24 Chevrolet Cavalier 2.4 twin cam? Where are the timing marks on the cam gears?


2.3L and 2.4L Engines Before attempting to remove the timing chain, read the entire procedure.
  1. Disconnect the negative battery cable.
  2. Remove the timing chain front cover, as outlined earlier in this section.
  3. Rotate the crankshaft clockwise, as viewed from the front of engine/normal rotation, until the camshaft sprocket timing dowel pin holes line up with the holes in the timing chain housing. The crankshaft sprocket keyway should point upwards and line up with the centerline of the cylinder bores. This is the "timed'' position. Fig. 8: The chain must be in the "timed'' position - 2.3L and 2.4L engines 87953108.gif
    Fig. 9: Remove the timing chain guides 87953109.gif

  4. Remove the timing chain guides.
  5. Raise and safely support the vehicle.
  6. Make sure all of the slack in the timing chain is above the tensioner assembly, then remove the tensioner. The timing chain must be disengaged from any wear grooves in the tensioner shoe in order to remove the shoe. Slide a suitable prytool under the timing chain while pulling the shoe outward. WARNING
    Do NOT attempt to pry the socket off the camshaft or damage to the sprocket or chain housing could occur.
  7. If difficulty is encountered in removing the chain tensioner shoe, remove the intake camshaft sprocket, as follows;
    1. Carefully lower the vehicle.
    2. Hold the intake camshaft sprocket with a suitable tool and remove the sprocket bolt and washer.
    3. Remove the washer from the bolt and rethread the bolt back into the camshaft by hand. The bolt provides a surface to push against.
    4. Remove the camshaft sprocket using a three-jaw puller in the three relief holes in the sprocket.
  8. Unfasten the tensioner assembly retaining bolts, then remove the tensioner. NOTE: The timing chain and crankshaft sprocket MUST be marked before removal. If the chain or sprocket is installed with the wear pattern in the opposite direction, noise and increased wear may occur.
  9. Mark the crankshaft sprocket and timing chain outer surface for reassembly, then remove the chain.
  10. Clean the old sealant off the bolt with a wire brush. Clean the threaded hole in the camshaft with a round nylon brush. Inspect the parts for wear and replace as necessary. Note that some scoring of the chain shoe and guides is normal. To install: WARNING
    Failure to follow this procedure may result in severe engine damage.
  11. Position the intake camshaft sprocket onto the camshaft with the surface marked during removal showing.
  12. Install the intake camshaft sprocket retaining bolt and washer, tighten to 52 ft. lbs. (70 Nm) while holding the sprocket with a suitable tool. Use GM sealant 12345493 or equivalent on the camshaft sprocket bolt.
  13. Place GM tool J 36008, or equivalent camshaft aligning pins, through the holes in the camshaft sprockets into the holes in the timing chain housing. This positions the cams for correct timing.
  14. If the camshafts are out of position and must be rotated more than 1?8 turn in order to install the alignment dowel pins, proceed as follows:
    1. The crankshaft MUST be rotate 90°clockwise off of TDC in order to five the valves adequate clearance to open.
    2. Once the camshafts are in position and the dowels installed, rotate the crankshaft counter clockwise back to TDC. WARNING
      Do not rotate the crankshaft clockwise to TDC; valve or piston damage could result. NOTE: The side of the timing chain that was marked during removal must be showing when the chain is installed.

  15. Place the timing chain over the exhaust camshaft sprockets, around the idler sprocket and around the camshaft sprocket.
  16. Set the camshafts at the timed position and install the timing chain. Remove the alignment dowel pin from the intake camshaft. Using GM tool J 39579, rotate the intake camshaft sprocket counter clockwise enough to slide the timing chain over the intake camshaft sprocket. Release the camshaft sprocket wrench (J 39579 or equivalent). The length of the chain between the two camshaft sprockets will tighten. If properly timed, the intake camshaft alignment dowel pin should slide in easily. If the dowel pin does not fully index, the camshafts are NOT timed correctly and the procedure must be repeated.
  17. Leave the alignment dowel pins installed. Raise and safely support the vehicle.
  18. With the slack removed from the chain between the intake camshaft sprocket and the crankshaft sprocket, the timing marks on the crankshaft and cylinder block should be aligned. If the marks are not aligned, move the chain one tooth forward or rearward, remove the slack and recheck the marks. Fig. 10: Timing chain assembly retaining bolts - 2.3L and 2.4L engines 87953111.gif

  19. Reload the timing chain tensioner assembly to its "zero'' position as follows:
    1. Form a keeper from a piece of heavy gauge wire, as shown in the accompanying figure.
    2. Apply slight force on the tensioner blade to compress the plunger.
    3. Insert a small prytool into the reset access hole, and pry the ratchet pawl away from the ratchet teeth while forcing the plunger completely in the hole.
    4. Install the keeper between the access hole and the blade. Fig. 11: Reloading the tensioner to its "ZERO'' position, then install to the chain housing 87953110.gif

  20. Install the tensioner assembly to the timing chain housing. Recheck the plunger assembly installation, it is correctly installed when the long end is toward the crankshaft. Install the tensioner retaining bolts; tighten to 89 inch lbs. (10 Nm).
  21. Carefully lower the vehicle enough to reach and remove the alignment dowel pins. WARNING
    Severe engine damage could result if the engine is not properly timed.
  22. Rotate the crankshaft clockwise (normal rotation) two full rotations. Align the crankshaft keyway with the mark on the cylinder block and reinstall the alignment dowel pins. The pins will slide in easily if the engine is correctly timed.
  23. Install the timing chain guides, then install the front (timing chain) cover.
  24. Connect the negative battery cable.
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Oct 02, 2010 | 1997 Chevrolet Cavalier

1 Answer

The camshaft position sensor


It sounds like that either the dowels were misalined or the target bolt in the center of magnet was over torqued. Make sure when installing magnet that the dowel pins are aligned with the hole on the back of the cam.(make sure that there is nothing in the holes on the cam).Install the center bolt and torque to 30 in-lbs. Then make sure the new o-ring is installed on cam sensor. Install sensor and torque mounting bolts to 80 in-lbs. If you follow this very closely,you should not have anymore problems. Hope this will help you.

May 18, 2010 | 1997 Dodge Intrepid

1 Answer

In a 1993 the crank and cam sensors are in the timing cover on the Dodge Stealth dohc 3.0. But on the 92 it's at the end of the cam gear. How can I make this swap?


i would think you could take out the cam plug and put the sensor in but the cam if i remember right has a metal pin like a dowel inserted in a hole drilled in the camshaft and that is what the sensor reads. if there is no pin or other tab on the other engine then you would have to swap the cam

Mar 20, 2010 | 1993 Dodge Stealth

1 Answer

We need to know where the cam timing marks go on a 1998 Hyundai Accent.The cam was turned after the belt was removed. We need to know how to aline the camshaft.


Hi

The cam dowel should be at 12:00. the hole in the cam sprocket should be line up with the cam dowel, with cam sprocket assembled to cam, you will see looking through the cam sprocket a red marking on the head, which lines up with the dowel. Down at the crank, make sure the cut out mark on the crank spocket is lined up with the notch on the oil pump cover.

Thanks for using FixYa - Steve




Feb 20, 2010 | Hyundai Motor 1998 Accent

2 Answers

Need help finding camshaft position sensor


2.0L 2.4L Removal The camshaft position sensor is mounted to the rear of the cylinder head.

Remove the negative battery cable. Disconnect the PCV hose and reposition Disconnect electrical connectors from the camshaft position sensor. Remove camshaft position sensor mounting screws. Remove sensor.Loosen screw attaching target magnet to rear of camshaft and remove magnet.
Instalation The target magnet has locating dowels that fit into machined locating holes in the end of the camshaft.
- Install target magnet in end of camshaft. Tighten mounting screw to 3 Nm (30 in. lbs.) torque. Over torqueing could cause cracks in magnet. If magnet cracks replace it.
- Install camshaft position sensor. Tighten sensor mounting screws to 12.9 Nm (115 in. lbs.) torque.
- Carefully attach electrical connector to camshaft position sensor. Installation at an angle may damage the sensor pins. - Connect the PCV Valve hose. - Connect the negative battery cable.
2.7L V6 Removal
The camshaft position sensor is mounted in the front of the head.

Disconnect electrical connector from sensor. Remove camshaft position sensor screw.
CAM Sensor Location 2.7L
Without pulling on the connector, pull the sensor out of the chain case cover.

Installation - Install sensor in the chain case cover and push sensor in until contact is made with the boss on the head. While holding the sensor in this position,install and tighten the retaining bolt to 12 Nm (105 in. lbs.) torque.
- Attach electrical connector to sensor.

Good luck and hope this helps





May 02, 2009 | Dodge Stratus Cars & Trucks

1 Answer

Cant find cam sensor in 2004 dodge stratus r/t


2.0L 2.4L it is on The BACK OF the Cylinder Head REMOVAL
The camshaft position sensor is mounted to the rear of the cylinder head.

  1. Remove the negative battery cable.
  2. Disconnect the PCV hose and reposition.
    1. Disconnect electrical connectors from the camshaft position sensor.
    2. Remove camshaft position sensor mounting screws. Remove sensor.
      1. Loosen screw attaching target magnet to rear of camshaft and remove magnet.
      INSTALLATION
      The target magnet has locating dowels that fit into machined locating holes in the end of the camshaft.

      1. Install target magnet in end of camshaft. Tighten mounting screw to 3 Nm (30 in. lbs.) torque. Over torqueing could cause cracks in magnet. If magnet cracks replace it.
      2. Install camshaft position sensor. Tighten sensor mounting screws to 12.9 Nm (115 in. lbs.) torque.
      3. Carefully attach electrical connector to camshaft position sensor. Installation at an angle may damage the sensor pins.
      4. Connect the PCV Valve hose.
      5. Connect the negative battery cable.
2.7L V6
REMOVAL
The camshaft position sensor is mounted in the front of the head.
  1. Disconnect electrical connector from sensor.
  2. Remove camshaft position sensor screw.
CAM Sensor Location 2.7L
  1. Without pulling on the connector, pull the sensor out of the chain case cover.
INSTALLATION
The camshaft position sensor is mounted in the front of the head.

  1. Install sensor in the chain case cover and push sensor in until contact is made with the boss on the head. While holding the sensor in this position,install and tighten the retaining bolt to 12 Nm (105 in. lbs.) torque.
  2. Attach electrical connector to sensor.

Feb 12, 2009 | 2004 Dodge Stratus

1 Answer

I need to know the timing marks for a 2001, 2.4 Alero


1-REMOVE THE ENGINE FRONT COVER
2-ROTATE THE CRANKSHAFT CLOCKWISE UNTIL THE CAM SPROCKET TIMING DOWEL PIN HOLES ALIGN WITH THE HOLES IN THE TIMING CHAIN HOUSING

399754d.jpg

Feb 01, 2009 | 2001 Oldsmobile Alero

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