Question about 1986 Mitsubishi Pickup

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Im changing head gasket on 1988 mitsu triton 2.6.have the head back on and i had the cam chain wheel under tension but i think it has slipped.i kept the cams and evrything in place nothin has moved cept maybe the cam chain.anyway i cant get the chain back over the cog thats whyhy im thinkin its moved. wots my next step?

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All these suggestions are spot on remove the cover loosen off the 10 mm and pull the cam sprocket back into place.
when the sprocket and chain are fitted again lightly push on the little knob next to the 10mm bolt you backed off just a little presser not to much and then tighten up the bolt.

if you are not shore if the chine has slipped wind the engine over by hand twice before you start it if it is free it should be ok thouse engines are bullet prof you should be ok

Posted on Dec 20, 2008

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On the timming cover lower lh side you will see a small alloy cover held on by to 6mm bolts remove this cover and behind it there is a nut loosen it an you will be able to correct the problem

Posted on Nov 08, 2008

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The cam cog should not have been touched when you removed thr head it should stay sitting on a little metal shelf . a zip tie could help . . .. . . . . . . . . but the spring tension of adjuster should be enough .

Posted on Aug 25, 2008

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A good idea to keep stuff from slipping is to put zip ties on the chain and cam gears so you dont have to question if it slipped or not,i would recommend finding the tensioner,relieve the tension and see if you can get it back on,it might not have slipped,just when you loosened the gears and took them off,the tensioner went full tension and its probably too much to just force the gears back in place-

Posted on Aug 12, 2008

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I NEED TIMING CHAIN DIAGRAM FOR VQ20 NISSAN SERFIRO 1999


Instructions
  1. Remove Your Timing Chain
    • 1 Check your owner's manual for the recommended mileage for replacing your timing chain. Replacement for a Nissan Altima is 60,000 miles.
    • 2 Locate the timing chain. Replace it if the automatic chain adjuster (also known as the tensioner) is damaged or worn.
    • 3 Drain the cooling system and disengage the negative battery cable. Undo the spark plug wires and set the No. 1 piston at "Top Dead Center" (TDC) of the compression stroke.
    • 4 Disconnect the engine undercover, vacuum and fuel hoses, harness and connectors, drive belts, power steering reservoir, alternator and bracket, upper radiator hose, air duct, front exhaust tube, intake manifold collector supports, collector and exhaust manifold and the distributor.
    • 5 Prop up the oil pan and take out the front engine mounting, the valve cover, camshaft sprockets, cam bearing caps, camshafts, cylinder head bolts (reverse the installation order), cam sprocket cover, upper chain tensioner, chain guides and chain, idler sprocket bolt, cylinder head, intake manifold and cylinder head gasket and the steel oil pan.
    • 6 Place a steel cutter between the steel and aluminum oil pans. Slip the cutter around the oil pan's edge. Disengage the steel oil pan, baffle plate, oil strainer and the front tube.
    • 7 Secure the car on jack stands and place a seal cutter in between the oil pan and cylinder block. Slip the cutter around the oil pan's edge.
    Install Your Timing Chain
    • 8 Reconnect the crankshaft sprocket, oil pump drive spacer, idler sprocket and lower timing chain. Position the lower timing chain on the sprockets and line up the mating marks.
    • 9 Rub on an unbroken bead of liquid gasket and put in a new front cover and oil seal. Secure the bolt at 105 to 112 foot pounds (142 to 152 Nm).
    • 10 Eliminate any old material from the pan and cylinder block mounting surfaces. Rub on a 3.5 to 4.5mm bead of liquid gasket over the oil pan and cylinder block.
    • 11 Attach the upper timing chain to the idler sprockets and secure the cylinder head bolts.
    • 12 Refill the cooling system and add clean oil in the engine.
    • 13 Hook up the negative battery cable and any other disconnected parts or items. Start the engine and look for leaks.
Tips & Warnings
  • Procedures for replacing timing chains in Nissan Altimas vary slightly depending on engine size.
  • Make sure the new timing chain matches the chain you are removing.

Jun 12, 2012 | Cars & Trucks

2 Answers

I just recently changed the Timing chain, Tensioner, chain guide, and top crank. When i start the truck the chain still clatters. I took off the Valve cover checked the guide, turned the pulley 360 deg....


i have had this problem with a ford scorpio 2.0 engine (euroepon model) and no matter what i done the adjuster would not come out and the timing kept jumping as the chain went slack ,so i improvised and made a spring to fit on the adjuster and the other end to the top of the cam shaft housing ,fitted rocker cover started engine and after a couple of minutes of running the oil pressure had built up in the adjuster mechanism .removed the spring and its been running ever since over 2 yrs now .Iam wondering how they do it in the factory on the assemble line perhaps the adjusters are pre filled with oil who knows

May 02, 2011 | 1997 Nissan Pickup

1 Answer

Setting of timing chains


Get Ford timing tool kit, part = otc-6488 (For about $119 USD on eBay)

4 timing chains (3 front including the optional balance shaft chain + 1 back)

2 cam guides (1 front + 1 back)

2 oil tensioners (1 front + 1 back)

1 jackshaft tensioner (1 front)

1 jackshaft guide/cassette (1 front)

1 balance shaft tensioner (1 front) (will probably be ok, so dont replace it)

1 balance shaft guide (1 front) (will probably be ok, so dont replace it)

new sprockets + bolts + gaskets etc.

new spark plugs + throttle body cleaner + lithium grease spray + oil change

head gaskets


some of these parts (the front stuff) can be obtained as a primary timing chain rattle noise kit Part# = 2u3e-6d256-** ab for 4*4 & bb for 2*4.

The kits also have later part numbers for us$ 76 @ http://www.fordpartsonline.com


My parts order (without the balance shaft stuff) was:

$76.04 KIT-TENSIONER TIMING 2u3e-6d256-ab

$47.93 Engine, Camshaft and timing, Timing chain, TIMING CHAIN, Explorer, Mountaineer, Rear - 4.0L SOHC - 4.0L SOHC

$57.36 Engine, Camshaft and timing, Chain guide, CHAIN GUIDE, Explorer, Mountaineer, Jackshaft To Cam - 4.0L SOHC - 4.0L SOHC

$103.22 Engine, Overhaul gasket set, OVERHAUL GASKET SET, Explorer, Mountaineer, Upper (Valve Grind) - 4.0L SOHC - 4.0L SOHC

$28.93 Engine, Camshaft and timing, Tensioner, TENSIONER, Explorer, Mountaineer, Upper - 4.0L SOHC - 4.0L SOHC

Its worth mentioning that this procedure is not enjoyable at all and should be undertaken with at least 8 full days to completion (I recon you could do it in half the time the second time).

It is basically on entire engine re-build with both heads off and the engine out of the vehicle.

It is not possible to do the rear chain or sprocket with the engine in the car as the flywheel needs to come off + at least 1 head, but it is possible to do the front primary chain and or front cam chain with the engine in the car.

You will be a ford exploder and timing expert after you do this - the main reason should be the love of your American built vehicle. Its a solid car - except for the plastic guides!

Disclaimer Note: This is how i successfully did the job, but i am not a ford mechanic and don't hold me responsible if this does not work for you.
Timing Overview

A Small Sprocket on the crank turns a larger (2 to 1 ratio) jackshaft sprocket that is in turn connected front & back to the 2 camshafts.

Thus a 360o turn of the crank will turn both the camshafts 180o.

Firing order is 1-4 2-5 3-6, Right side numbers 1,2,3. Left Side = 4,5,6.

At TDC pistons 1 & 5 are fully raised, thus 1 is about to spark & 5 is evacuated.

The engine will turn freely (no piston to valve contact) with the cams 180o out, it will even run (roughly) with 1 out 180o, any other settings may cause major damage to the valves.

The 2 cam shafts come with timing markings, "yes" real timing marks that anyone can use (even without special tools) to ensure correct timing.

The way to time it is to ensure both the off centre cam shaft slits are level/flat with the head.

With the engine at TDC both the cams need to have the off centre slot in the same position either up and level or down and level.

It is super critical that both the camshafts are 100% in sink with each other, i.e. not a few degrees off, the engine computer can compensate for crank timing but not engineering failure.

Be warned the camshafts can turn easily fast & hard by themselves as a few springs are compressed at TDC, I got my finger jammed and its still healing + if the engine is not at TDC you may damage a valve.

Now heres the hard thing that you will need special tools for - if you need to change the timing, you will need to be able to undo the cam sprocket bolt on both cams & these are done up real tight.

There is a tool that you attach that has 2 pencil thick shafts that fit into the sprocket and prevent it from turning - then you need to put about 90Nm of force on the bolt (remember the rear one if LHT)

For the $money$, its well worth getting yourself the tool kit - it will save you hours in the long run. Search eBay for otc-6488 should be US $119 - then sell them again for say $100.

There is also a tool version of the oil tensioner in the kit that screws right in and puts the correct amount of force on the chain + guide, to enable you to do up the cam bolt with the chain and sprocket in the right spot on the cam.


Dec 20, 2010 | 2003 Ford Explorer

1 Answer

Head gasket got bent and I have replaced it . Now the problem I'm facing is how to set the crank shaft and the comshaft timing. I need the procedure for engine timing


Timing Chain & Gears Removal & Installation To Remove:
NOTE: Keep the cam chain away from magnetic fields.
Crankshaft set at TDC marks hnda_trk_crv_crank_tdc_marks.gif

  1. Turn the crankshaft pulley so its Top Dead Center (TDC) mark (1) lines up with the pointer (2).
  2. Raise and support the vehicle.
  3. Remove the front tires/wheels. Front undercar splash shield hnda_trk_crv_frt_under_splsh_shld.gif

  4. Remove the front undercar splash shield.
  5. Remove the drive belt.
  6. Remove the cylinder head cover (See section on Valve Cover).
  7. Remove the crankshaft pulley (See section on Crankshaft Damper). CKP sensor and VTC solenoid electrical connectors hnda_trk_crv_ckp_vtc_ele_conn.gif

  8. Disconnect the Crankshaft Position (CKP) sensor connector (1) and Variable Valve Timing Control (VTC) oil control solenoid valve connector (2).
  9. Remove the VTC oil control solenoid valve (See section on VTC Solenoid Valve).
  10. Support the engine with a jack and wood block under the oil pan. Ground cable and upper bracket removal hnda_trk_crv_grnd_cbl_uppr_brckt_rem.gif

  11. Remove the ground cable (1), and remove the upper bracket (2). Side engine mount bracket removal hnda_trk_crv_side_eng_mount_brckt_rem.gif

  12. Remove the side engine mount bracket. Timing chain cover removal hnda_trk_crv_timng_chain_cov_rem.gif

  13. Remove the timing chain cover bolts both from the front to the block and from the bottom to the oil pan.
  14. Remove the timing chain cover.
  15. Loosely install the crankshaft pulley. Compress the timing chain auto-tensioner hnda_trk_crv_compr_tim_chain_auto_tensnr.gif

  16. Turn the crankshaft counterclockwise to compress the auto-tensioner. Lock the timing chain auto-tensioner hnda_trk_crv_lock_tim_chain_auto_tensnr.gif

  17. Align the holes on the lock (1) and the auto tensioner (2), and then insert a 0.06 inch (1.5 mm) diameter pin (3) into the holes.
  18. Turn the crankshaft clockwise to secure the pin. Removal of the timing chain auto-tensioner hnda_trk_crv_rem_tim_chain_auto_tensnr.gif

  19. Remove the auto-tensioner. Removal of the timing chain guide B hnda_trk_crv_rem_tim_chain_guide.gif

  20. Remove the cam chain guide B. Removal of the timing chain guide A hnda_trk_crv_rem_tim_chain_guidea.gif

  21. Remove the cam chain guide A (1) and tensioner arm (2).
  22. Remove the cam chain.
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Oct 11, 2010 | 2002 Honda CR-V

1 Answer

Need to change timing chain. do i need to remove the head?


Check the vehicle manual for recommended mileage for replacing the timing chain.Locate the timing chain,you will need to replace it if the automatic chain adjuster "also known as the tensioner " is damage or worn.Drain the cooling system and disengage the negative battery cable.Undo the spark plug wires and set the No.1 piston at Top Dead Center ( TDC ) of the compression stroke. Disconnect the engine undercover,vacuum and fuel hoses,harness and connectors,drive belts, power steering reservoir,alternator and bracelet,upper radiator hose and,air doct,front exhaust tube,intake manifold collector supports,collector and exhaust manifold and distributor.Prop up the oil can and take out the front engine mounting,the valve cover and camshaft sprockets,cam bearing caps and camshafts,cylinder head bolts, cam sprocket cover,upper chain tensioner,chain guide and the chain,idler sprocket bolt,cylinder head,intake manifold and cylinder head gasket and the steel oil pan. Place a steel cutter between the steel and aluminum oil pans.Slip the cutter around the the edge of the oil pan and disengage the steel oil pan,baffle plate,oil strainer and front tube. Secure the vehicle on jack stands and place a seal cutter between the oil pan and the cylinder block,slip the cutter around the edge of the oil pan.

Aug 15, 2010 | 1997 Nissan Pickup

1 Answer

Have a 2006 cobalt 2.2 liter DOHC eco tech w bad head gasket and warped head. just got the head machined and replaced the head gasket along with many other parts. but im trying to install the timing chain...


when you got the chain on and the cam's timed and unloaded and locked the tensioner and installed the tensioner then the shoe guides did you unlock the tensioner before you turned it over
when you turn the engine over it will have a little bit of slack because it's only spring tension
double check the engine is timed correct don't worry about the colored links they only line up every 35 revolutions
if the crank and the cams are in time
you should be good
hope this helps

Nov 08, 2009 | 2006 Chevrolet Cobalt

1 Answer

How do you release the tension on the timing chains for the camshafts. i'm changing the head gaskets and can't figure out the timing chains tensioner. please help.


there are two large bolts in timing casing area 32mm size, one tensions cam chain the other tensions intermediate shaft chain, make sure engine is pinned in crank pulley to lock engine before releasing tensioners

Nov 04, 2009 | 2001 Porsche Boxster

1 Answer

Changing a head gasket on a 1984 rodeo 2000 g200 kb28 with a sohc. How do i take off the timing chain?


there is a special tool. it holds the chain against the hydraulic tensioner and on the cam sprocket. you need this to prevent tensioner from loosing its prime and keep the timing from moving. once tool is in place remove bolt holding cam sprocket and you lift head off leaving chain and sprocket in place.

Jul 08, 2008 | 2000 Isuzu Rodeo

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