Blown head gasket just had head resurfaced putting cam and rocker assembly getting timming gear and chain back together .do I have to pull front timing cover to get back together.
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It may be any number of things, but here's just a few:
1) Cam shaft position sensor incorrectly fitted or wiring faulty. 2) Compression incorrect due to over-skimming of the head. 3) Incorrect timing chain placement and/or faulty valve timing.
yes, air intake, intake manifold and exhaust manifold. This is not a job for a novice. If engine has overhead cam, then cam chain/belt must also be removed. Rocker arms must be loosened to allow valves to close. Note position of timing gear in case cam rotates while chain/belt is off. Camshaft must be properly timed to the crankshaft on reassembly.
Head should be checked for warping and cracks. Follow torque instructions carefully when reinstalling the head.
REMOVAL & INSTALLATION NOTE: The manufacturer recommends that the entire powertrain be removed from the vehicle before removing the cylinder heads.
Before servicing the vehicle, refer to the precautions in the beginning of this section.
Drain the cooling system.
Properly relieve the fuel system pressure.
Remove or disconnect the following:
Negative battery cable
Powertrain assembly
Intake manifold
Cam covers
Harmonic balancer
Timing chain front cover
Oil pump
WARNING Align all timing marks before performing the next step.
Chain tensioner from the timing chain
Cam sprockets
NOTE: The timing chain remains in the chain case.
Timing chain guides, access for the retaining screws is through the plugs at the front of the cylinder head
Water crossover
Exhaust manifold
Cylinder head bolts by reversing the torque sequence
Cylinder head and discard the gasket
WARNING With the camshafts remaining in the cylinder head some valves will be open at all times. Do not rest the cylinder head on a flat service with the cylinder face down, or valve damage will result.
NOTE: Clean all gasket mating surfaces. Clean the head bolt holes in the crankcase. WARNING Be careful when cleaning aluminum gasket surfaces to prevent damage to the sealing surfaces.
Check the cylinder head for warpage; it must be less than 0.002 in. (0.05mm). If the cylinder head was resurfaced, the dimension between the combustion chamber gauge pad and the deck surface must be at least 10.5mm.
To install:NOTE: Refer to Section 1 of this manual for the cylinder head torque sequence illustration. The illustration is located after the Torque Specification Chart.
Install or connect the following:
New cylinder head gasket
Cylinder head, lubricate the bolts with engine oil
Torque the M11 bolts, in sequence, as follows:
Step 1: 22 ft. lbs. (30 Nm).
Step 2: Turn an additional 60 degrees.
Step 3: Turn an additional 60 degrees (total 180 degrees).
Torque the M6 bolts to 106 inch lbs. (12 Nm).
Set the camshaft timing
Camshaft guide bolt access hole plugs in the cylinder heads. The plugs should be seated and snug
Install or connect the following:
Intake cam covers
Oil pump
Timing chain front cover
Harmonic balancer
Cam sprockets
Chain tensioner to the timing chain
Timing chain guides
Intake manifold
Water crossover
Exhaust manifold. Torque the nuts to 22 ft. lbs. (30 Nm) or the bolts to 18 ft. lbs. (25 Nm).
Powertrain assembly
Negative battery cable
Fig. 1: Minimum head resurface dimension
please read all before starting not to bad to change did you check compression if your sure that's what it is its about 4hr job.start by putting #1 tdc intake side.note where vacuum hoses are can mark with gray or yellow perm marker remove breather all plug wires exhaust manifold then intake manifold remember what bolts in and whats nutted on.remove break booster cross vacuum hose and egr control valve on left rear of intake side remove vale cover ((you'll have to get something to hold tension on timing chain so not to let tentioner come out inside timing chain cover when removing came gear)) remove head bolts only in off order so not to put tension in one area. donot remove cam shaft bolts and do not turn cam shaft at all after timing gear is removed take off head and check piston walls for wear replace gasket and put back in GOOD LUCK
I also would recommend replacing the timing chain and timing gears since you are going to have to take the timing chain off anyhow.
You will also need the associated tools to do the job, plenty off rachets, box wrenches and such.
If you are doing mechanical lifters you will also a feeler gauge to measure the valve clearance and make adjustments.
I cant think of anything else off the top of my head.
If you are doing a cam with more lift then I would recommend replacing your valve springs as well, it is easy and it will assure you do not incur valve float. You will have to take the rockers off when you install the new lifters because you have to remove the pushrods. I also recommend you replace the pushrods while you are at it, they are cheap. You will need a valve spring compressor and new valve springs and locks, they are pretty cheap.
It's time to do a head gasket job the 22Re's blow the head gasket at about 140,000 so your son did you a favor, remove the head have it machined and valeves done replace the head gasket the the tork to yeild head bolts that HAVE to be replaced spend about $200.00 and it will last another 150,000 miles the rings and bottom end are solid on them but the head goes bad between #1 and #2 cylinders.also when you pull the head undue the exhast pipe and dump out the antifreeze in the catalitic conveter and you don't want that it will ruin it. and you can fix the broken exhaust pipe at the same time down by the L on the side of the tranny.
if this is 6VD1 engine it has single cam gear each head, but is still a 2 cams per head, engine
if belt has broke or you have turned any gear you must remove rocker covers to check positions of camshafts front lobes are in certain spot as well as timming mark on belt driven cam gear to cover
this cam gear is a 3:1 ratio (3 turns of cam gear = 1 turn of cams)
if timming marks were set correctly and it is single cam engine were lifters bleed out before assembly? it may not have any compression
may have to remove top rocker cover only and use lever to push down on rockers to there is clearance between cam
i'am a little confused here. are you saying it jumped time and you took it apart and put new timmimg gear and chain in? and don't know if you got marks lined up right, between cam gear and crank gear?
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-
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