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On a ford 4.6l dohc motor, I broke the secondary timing chain and don't know how to set the camshaft before installing the new chain Thanks

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  • Anonymous Mar 24, 2014

    Hi is this model chain driven it is a dohc.Thanks

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On the pullys of the cams theres a mark like a little arrow face to the mark on the front cover on the head same with the bottom crank that one faces up.while turnning crank make sure cyl.1 is top dead center to check that u can put a pressure tester or you can do it the old fashion way . take off sparkplug of said cyl. carfuly put in long screwdriver in sparkplug hole.when piston is on top stop and proced with putting on chains. ........ carful with screwdriver in cyl. dont scratch piston or cyl wall. hope this helps you write me back and let me know how uyou made out.

Posted on Jul 02, 2009

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2001 f150 4,6l motor replaced right side timeing chain car bearllyruns could this be caused by putting the crank shaft sensor in backwords


the camshaft keys should be positioned downwards at 90 degrees to the head surface(Gasket surface) This will place the timing marks on the sprocket in the 1o'clock position upwards. The black link on the chain will be aligned with the 2 dots on the sprocket. This applies to both heads. the crankshaft sprocket will be facing down and the black link will be on the single dot. The crankshaft keyway will be located at approx. the 11 o'clock position.

If this sounds a bit daunting then get a workshop manual as it explains the process well. The book says not to turn the camshafts /crankshaft with the chains removed and I suspect that if this is not adhered to then bent valves will result.

Sep 01, 2014 | 2003 Ford F

1 Answer

Diagram timing of v6 engine of liberty 2001 model


2001 , no such ani-mule !
"Introduced for the 2002 model year as a replacement for the Cherokee (XJ),"
you meant manufactures date not model and reg. date. sure.
2002 !
3.7L V6 (cop spark ) chain drive cams....
timing ( cam or spark?)
"Ignition timing is controlled by the Powertrain Control Module (PCM). No adjustment is possible"
so Cam timing (alldata.com covers this in detail)
why not post the context, Im doing what.?
im doing a 60k belt swap
or it slipped. or think id did.
or just put in a new head or cam? see , context is 100% important.
im here, going to there.....
im on line, and it shows 4 engines, i think that is wrong, but...

you must be asking chain cam sprocket timing.
im at alldata.com (or FSM)
there are 37 install steps, im not sure what step you want me
to pluck out. but here is my guess. step 8 ,9,10
  1. Install both secondary chains onto the idler sprocket. Align two plated links on the secondary chains to be visible through the two lower openings on the idler sprocket (4 o'clock and 8 o'clock). Once the secondary timing chains are installed, position special tool 8429 to hold chains in place for installation.
  2. Align primary chain double plated links with the timing mark at 12 o'clock on the idler sprocket.
  3. Align the primary chain single plated link with the timing mark at 6 o'clock on the crankshaft sprocket.
step 12:
Install all chains, crankshaft sprocket, and idler sprocket as an assembly . After guiding both secondary chains through the block and cylinder head openings, affix chains with a elastic strap or equivalent. This will maintain tension on chains to aid in installation. Align the timing mark on the idler sprocket gear to the timing mark on the counterbalance shaft drive gear, then seat idler sprocket fully . Before installing idler sprocket bolt, lubricate washer with oil, and tighten idler sprocket assembly retaining bolt to 25 ft. lbs. (34 Nm).

step 13:
  1. Align left camshaft sprocket "L" dot to plated link on chain.
  2. Align right camshaft sprocket "R" dot to plated link on chain.

step 15/16
  1. Remove Special Tool 8429, then attach both sprockets to camshafts. Remove excess oil from bolts, then Install sprocket bolts, but do not tighten at this time.
  2. Verify that all plated links are aligned with the marks on all sprockets and the "V6" marks on camshaft sprockets are at the 12 o'clock position.

do ask questions, or login to alldata.com or mitchels
or get a real FSM.
its nothing trivial.

in fact get the book before the job. so are perpared.

Nov 30, 2013 | Jeep Liberty Cars & Trucks

1 Answer

How do i set camshafts on 1999 duvil northstar


Remove camshaft covrs
Remove front cover
Remove or fully retract all three timing chain tensioners
Remove oil pump
Primary and secondary chain guides should remain in place. Rotate crankshaft until sprocket drive key is at about 1 o'clock position.
Set crankshaft and intermediate shaft sprockets into primary drive chain with their timing marks asjacent to each other.
Install crankshaft and intermediate sprockets over their respective shafts. Rotating crankshaft as necessary to engage crankshaft key in sprocket without changing the timing mark relationship.
Install Flywheel Holder Tool (J-39411) to lock crankshaft in position. Install intermediate shaft sprocket retaining bolt and torque to specifications.
Route secondary chain for left cylinder head over inner row of intermediate shaft teeth.
Route secondary drive chain over chain guide, and install exhaust cam sprocket to chain so camshaft drive pin engages the sprocket notch marked "LE" (Left Exhaust).
There dhould be no slack in the lower section of the chain, and the camshaft drive pin must be perpendicular (90 degrees) to the cylinder head surface.
Install the intake camshaft sprocket into the chain so the sprocket notch marked "LI" (Left Intake) engages camshaft drive pin, while drive pin remains perpendicular to the head face. Minor adjustments can be made to camshaft position to get pin to engage by using a wrench on the hex cast into the camshaft.
Install sprocket retainer bolts and torque to specification.
Repet steps as above to install the right secondary chain to the right camshafts. The right camshaft sprockets are marked "RE" and "RI". In addition, the RE sprocket must contain the camshaft position sensor pickup.

May 27, 2012 | 2000 Cadillac DeVille

1 Answer

I have a 2001 Olds Aurora with a V6 3.5 and I need the timing diagram for this. I have looked everywhere and can not find a book with it in it. Would you happen to have this??


Please let me know if you have questions, and thanks for using Fixya.


jturcotte_1505.gif

To install:

  1. Rotate the crankshaft so the No. 1 piston is at TDC and the mark on the crankshaft is at the 4 o-clock position.
  2. Rotate the balance shaft so the timing mark is at the 5 o-clock position.
    NOTE Be sure the painted links are facing the front of the engine.
  3. Install the timing chain on the sprockets.
  4. Center the mark on the left intake camshaft sprocket between the 2 painted links.
  5. Lift the chain onto the right intake camshaft sprocket. While doing this, align the marks on the balance shaft and crankshaft sprockets with the painted marks on the chain.
  6. Verify that all of the timing marks are aligned.
  7. Install the primary chain tensioner shoe. Torque the bolt to 22 ft. lbs. (30 Nm).
  8. Compress the primary chain tensioner using the following steps:
    1. Rotate the ratchet release lever counterclockwise and hold it.
    2. Press the tensioner shoe in and hold it.
    3. Release the ratchet lever and slowly release the pressure on the shoe.
    4. Insert a pin through the hole in the lever as the lever moves to the first click. The ratchet should hold the shoe in the compressed position.
      NOTE Be sure the lever on the tensioner is facing you when installed.

  9. Install or connect the following:

    Primary chain tensioner. Torque the bolts to 18 ft. lbs. (25 Nm); then remove the chain tensioner pin. 4 chain guide access plugs. Torque the plugs to 44 inch lbs. (5 Nm). Front engine lift bracket. Torque the hex head bolt to 37 ft. lbs. (50 Nm) and the internal drive bolt to 18 ft. lbs. (25 Nm). CMP sensor. Torque the bolts to 80 inch lbs. (9 Nm).
  10. Remove the camshaft holding tools.
  11. Place a small bead of RTV sealant on the 3 areas indicated in the diagram.
  12. Install or connect the following:

    Front cover with a new gasket. Torque the bolts to 124 inch lbs. (14 Nm) and the coolant drain plug to 89 inch lbs. (10 Nm). Crankshaft balancer. Torque the bolt to 37 ft. lbs. (50 Nm); then an additional 120 degree turn.
  13. Raise the engine cradle and install new bolts. Torque the bolts to 133 ft. lbs. (180 Nm).
  14. Coat the sub-frame bushings with rubber lubricant.
  15. Install or connect the following:

    Water pump with a new gasket. Torque the bolts to 124 inch lbs. (14 Nm). Belt tensioner. Torque the bolts to 37 ft. lbs. (50 Nm). Idler pulley. Torque the bolt to 37 ft. lbs. (50 Nm). Power steering pump pulley Drive belt Underhood accessory wiring junction block Washer and coolant reservoirs Battery and tray Front diagonal brace Rocker arm covers. Torque the bolts to 80 inch lbs. (9 Nm). Negative battery cable
  16. Refill the cooling system.
  17. Refill the crankcase.
  18. Start the engine and verify no leaks.
Secondary Chain
  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Disconnect the negative battery cable.
  3. Remove the rocker arm cover and install camshaft holding fixture J-42038.
  4. Remove the camshaft sprocket bolts and install the timing chain holding fixture J-42042 on the cylinder head.
  5. Remove or disconnect the following:

    Sprockets and chain Secondary timing sprocket and chain
To install:

jturcotte_428.jpg

Fig. Correct sprocket alignment for the left secondary timing chain-3.5L engine


jturcotte_429.jpg

Fig. Correct sprocket alignment for the right secondary timing chain-3.5L engine

  1. Install or connect the following:

    Secondary timing chain on the sprockets, with the drive pins at the 12 o-clock positions Sprockets and chain assembly onto the camshafts, with the chain properly aligned on the tensioner
  2. Remove the timing chain holding fixture
  3. Install the sprocket bolts. Torque the bolts to 18 ft. lbs. (25 Nm); then an additional 45 degree turn.
  4. Remove the camshaft holding fixture.
  5. Install or connect the following:

    Rocker arm cover Negative battery cable

Apr 09, 2011 | 2001 Oldsmobile Aurora

1 Answer

I need to find the camshaft position sensor on my 2003 nissan murano


Camshaft Position Sensors are located on the cylinder head according to the following: Camshaft, Bearings & Lifters Removal & Installation To Remove:
  1. Remove the engine from the vehicle.
  2. Remove the front suspension member, transaxle and transfer case (if equipped) from the engine.
  3. Mount the engine in a suitable engine stand.
  4. Remove the timing chains and rear timing chain case.
  5. Remove the camshaft position sensors from the cylinder heads.
  6. Remove the intake valve timing control solenoid valves. NOTE: Mark the camshafts, camshaft brackets, and bolts so they are placed in the original locations during installation.
  7. Loosen the camshaft bracket bolts in several steps using the order shown.
  8. Remove the intake and exhaust camshaft brackets and the camshafts. Camshaft bracket bolt removal sequence nissan-03-35-4624.gif

  9. Remove the valve lifters and the secondary timing chain tensioner with stopper pin attached if necessary.
NOTE: Stopper pin was installed when the secondary timing chain was removed.
To Install:
NOTE: Clean sealant from front camshaft bracket, bolts and bolt holes.
  1. Turn the crankshaft until No.1 piston is at TDC on the compression stroke. The crankshaft key should line up with the right bank center line as shown. Crankshaft keyway position nissan-03-35-4625.gif

  2. If removed, install the secondary timing chain tensioners and valve lifters in their original positions. NOTE: The intake camshaft has a drill mark on the edge of the sprocket mounting flange.
  3. Position the camshafts on the cylinder heads with the dowel pins as shown. Camshaft dowel pin positions nissan-03-35-4626.gif

  4. Apply silicone sealant to the front (No. 1) camshaft bracket as shown. Apply silicone sealant to the front (No. 1) camshaft bracket nissan-03-35-4627.gif

    Camshaft bracket bolt installation sequence nissan-03-35-4628.gif

  5. Install and tighten the camshaft brackets using the following steps in the sequence shown;
    • Step 1 (bolts 7 - 10) : 1 ft-lb (2 Nm)
    • Step 2 (bolts 1 - 6) : 1 ft-lb (2 Nm)
    • Step 3 (bolts 1 - 10): 4 ft-lbs (5.9 Nm)
    • Step 4 (bolts 1 - 6) : 8 ft-lbs (10.4 Nm)
    • Step 4 (bolts 7 - 10) : 7 ft-lbs (9.3 Nm)
  6. Wipe off excess sealant from bracket No. 1.
  7. Measure the difference between the front surfaces of camshaft bracket No. 1 and the cylinder head. The specification is -0.0055 to 0.0055 in (-0.14 to 0.14 mm). Replace the camshaft and camshaft bracket if out of specification. Measure the difference between the front surfaces of camshaft bracket No. 1 and the cylinder head nissan-03-35-4629.gif

  8. Install the IVT control solenoid valves with new gaskets.
  9. If removed, install the camshaft position sensor.
  10. Install the rear timing chain case and timing chains.
  11. Install the engine in the vehicle.
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Jul 03, 2010 | 2003 Nissan Murano

2 Answers

Timing on 4.7 help


INSTALLATION
  1. Using a vise, lightly compress the secondary chain tensioner piston until the piston step is flush with the tensioner body. Using a pin or suitable tool, release ratchet pawl by pulling pawl back against spring force through access hole on side of tensioner. While continuing to hold pawl back, Push ratchet device to approximately 2 mm from the tensioner body. Install Special Tool 8514 lock pin into hole on front of tensioner. Slowly open vise to transfer piston spring force to lock pin (Resetting Secondary Chain Tensioners).
  2. Position primary chain tensioner over oil pump and insert bolts into lower two holes on tensioner bracket. Tighten bolts to 28 N·m (250 in. lbs.). CAUTION: Overtightening the tensioner arm torx® bolt can cause severe damage to the cylinder head. Tighten torx® bolt to specified torque only.
  3. Install right side chain tensioner arm. Apply Mopar® Lock N, Seal to torx® bolt, tighten bolt to 17 N·m (150 in. lbs.). NOTE: The silver bolts retain the guides to the cylinder heads and the black bolts retain the guides to the engine block.
  4. Install the left side chain guide. Tighten the bolts to 28 N·m (250 in. lbs.). CAUTION: Overtightening the tensioner arm torx® bolt can cause severe damage to the cylinder head. Tighten torx® bolt to specified torque only.
  5. Install left side chain tensioner arm. Apply Mopar® Lock N, Seal to torx® bolt, tighten bolt to 17 N·m (150 in. lbs.).
  6. Install the right side chain guide. Tighten the bolts to 28 N·m (250 in. lbs.).
  7. Install both secondary chains onto the idler sprocket. Align two plated links on the secondary chains to be visible through the two lower openings on the idler sprocket (4 o'clock and 8 o'clock). Once the secondary timing chains are installed, position special tool 8515 to hold chains in place for installation (Installing Secondary Timing Chains on Idler Sprocket).
  8. Align primary chain double plated links with the timing mark at 12 o'clock on the idler sprocket. Align the primary chain single plated link with the timing mark at 6 o'clock on the crankshaft sprocket (Timing Chain System).
  9. Lubricate idler shaft and bushings with clean engine oil.
  10. Install all chains, crankshaft sprocket, and idler sprocket as an assembly (Installing Idler Gear, Primary and Secondary Timing Chains). After guiding both secondary chains through the block and cylinder head openings, affix chains with a elastic strap or the equivalent, This will maintain tension on chains to aid in installation. NOTE: It will be necessary to slightly rotate camshafts for sprocket installation.
  11. Align left camshaft sprocket “L” dot to plated link on chain.
  12. Align right camshaft sprocket “R” dot to plated link on chain. CAUTION: Remove excess oil from the camshaft sprocket bolt. Failure to do so can result in over-torque of bolt resulting in bolt failure.
  13. Remove Special Tool 8515, then attach both sprockets to camshafts. Remove excess oil from bolts, then Install sprocket bolts, but do not tighten at this time.
  14. Verify that all plated links are aligned with the marks on all sprockets and the “V8” marks on camshaft sprockets are at the 12 o'clock position (Timing Chain System). CAUTION: Ensure the plate between the left secondary chain tensioner and block is correctly installed.
  15. Install both secondary chain tensioners. Tighten bolts to 28 N·m (250 in. lbs.). NOTE: Left and right secondary chain tensioners are not common.
  16. Before installing idler sprocket bolt, lubricate washer with oil, and tighten idler sprocket assembly retaining bolt to 34 N·m (25 ft. lbs.).
  17. Remove all locking pins (3) from tensioners. CAUTION: After pulling locking pins out of each tensioner, DO NOT manually extend the tensioner(s) ratchet. Doing so will over tension the chains, resulting in noise and/or high timing chain loads.
  18. Using Special Tool 6958, Spanner with Adaptor Pins 8346, tighten left (Tightening Left Side Camshaft Sprocket Bolt) and right (Tightening Right Side Camshaft Sprocket Bolt). camshaft sprocket bolts to 122 N·m (90 ft. lbs.).
  19. Rotate engine two full revolutions. Verify timing marks are at the follow locations:
  20. Lubricate all three chains with engine oil.
  21. After installing all chains, it is recommended that the idler gear end play be checked (Measuring Idler Gear End Play). The end play must be within 0.10–0.25 mm (0.004–0.010 in.). If not within specification, the idler gear must be replaced.
  22. Install timing chain cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S) - INSTALLATION) and crankshaft damper (Refer to 9 - ENGINE/ENGINE BLOCK/VIBRATION DAMPER - INSTALLATION).
  23. Install cylinder head covers (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) - INSTALLATION). NOTE: Before installing threaded plug in right cylinder head, the plug must be coated with sealant to prevent leaks.
  24. Coat the large threaded access plug with Mopar® Thread Sealant with Teflon, then install into the right cylinder head and tighten to 81 N·m (60 ft. lbs.) (Cylinder Head Access Plug Location).
  25. Install the oil fill housing.
  26. Install access plug in left cylinder head (Cylinder Head Access Plug Location).
  27. Install power steering pump (Refer to 19 - STEERING/PUMP - INSTALLATION).
  28. Install radiator fan shroud.
  29. Fill cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE).
  30. Connect negative cable to battery.

Jul 08, 2009 | 2000 Dodge Durango

3 Answers

Timing belt


Absolutely NOT TRUE this vehicle has a timing chain, NOT a timing belt. It has a serpentine belt. Thanks for using FIX YA

May 16, 2009 | 2000 Ford Explorer

1 Answer

1997 ford explorer 4.0 sohc how to set timing


There are no timing marks. Timing is done using special tools to hold the crank at top center and a tool to hold each camshaft in position. the cam sprockets are not pinned to the cams. there are also dummy tensioners installed to take up the slack till the tightening is done. Also there are chains at the back of the motor that can only be timed with the motor out of vehical.

Feb 10, 2009 | 1997 Ford Explorer AWD

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