I'm trying to replace my valve seals. I'm stuck with the rocker arm assemblies. Can't take the camshaft holders off. I've followed each step in the Haynes Repair Manual, but they take it for granted that everything should come off easily. I've taken out all the rocker arm assembly bolts, except for the 4 exhaust that whirl around loosely. Any tricks on how to pull out the cam holders?
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Re: 95 Civic with D15B7 1.5 16 valve engine
Tap them lighty on each side with a small hammer and take two phillips screwdrivers and put them into the two bolt holes on each cap squeeze the two screwdrivers together and pull back and forth and side to side, also make sure you have all the bolts out of the caps before proceding with this there are little dowels under each cap that center them they are stuck at the bottom you may also try a very fine flat screwdriver to pry up on the caps on the bottom you could carefully tap it in under the cap with a small hammer, please rate -jeff
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Depends on what engine you are working on. Some require removing camshaft(s), some have rocker arms, but all require you to use a tool to insure valves do not drop into engine (air chuck is one type) and some tool to compress the springs so you can remove the "keepers". When replacing springs, it is wise to replace the guide seals as well.
Remove the distributor, fuel pump, oil pan and oil pump.
Align the timing marks. Unbolt the camshaft thrust plate, working through the holes in the camshaft gear.
Loosen the rocker arms, remove the pushrods, take off the side cover and remove the valve lifters with a magnet.
Remove the camshaft very carefully to prevent nicking the bearings.
Oil the camshaft bearing journals and use Lubriplate or something
similar on the lobes. Install the camshaft, gear, and thrust plate,
aligning the gear marks. Tighten down the thrust plate. Make sure that
the camshaft end-play is not excessive.
The last item to be replaced is the distributor. The rotor should
be at the firing position for no. 1 cylinder, with the timing gear marks
V6 and V8 Including Diesel Ford recommends removing the diesel engine for camshaft removal.
Remove the intake manifold and valley pan, if so equipped.
Remove the rocker covers, and either remove the rocker arm shafts
or loosen the rockers on their pivots and remove the pushrods. The
pushrods must be reinstalled in their original positions.
Remove the valve lifters in sequence with a magnet. They must be replaced in their original positions.
Remove the timing chain/gear cover and timing chain (timing gear on V8 diesel) and sprockets.
In addition to the radiator and air conditioning condenser, if so
equipped, it may be necessary to remove the front grille assembly and
the hood lock assembly to gain the necessary clearance to slide the
camshaft out of the front of the engine. On the V6-3.8L, remove the
camshaft thrust button and spring. Remove the camshaft thrust plate
attaching screws and carefully slide the camshaft out of its bearing
bores. Use extra caution not to scratch the camshaft lobes.
Camshaft removal tools, Ford part no. T65L-6250-A and adaptor 14-0314 are needed to remove the diesel camshaft.
Coat the camshaft with engine oil liberally before installing it.
Slide the camshaft into the engine very carefully so as not to scratch
the bearing bores with the camshaft lobes. Install the camshaft thrust
plate and tighten the attaching screws to 9 - 12 ft. lbs. Measure the
camshaft end-play. If the end-play is more than 0.009 inch; (0.228mm),
replace the thrust plate. Assemble the remaining components in the
reverse order of removal.
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Move the intake secondary rocker arm A for the No. 1 cylinder. The secondary rocker arm A should move independently of the secondary rocker arm B.
If the intake secondary rocker arm A moves freely, go to step 5.
If the intake secondary rocker arm A does not move, remove the secondary rocker arms as an assembly, then check that the pistons in the secondary rocker arms move smoothly. If any rocker arm needs replacing, replace the secondary rocker arms as an assembly, then retest.
Repeat step 4 on the remaining intake secondary rocker arms with each piston at TDC. When all the secondary rocker arms pass the test, go to step 6.
Check that the air pressure on the shop air compressor gauge indicates over 400 kPa (4.0 kgf/cm2, 57 psi).
Install a 10 x 1.0 mm adapter to the inspection hole, then connect the air pressure regulator
With the specified air pressure applied, move the intake secondary rocker arm A for the No. 1 cylinder. The secondary rocker arm A and secondary rocker arm B should move together. If the intake secondary rocker arm A does not move, remove the secondary rocker arms as an assembly, and check that the pistons in the secondary rocker arms move smoothly. If any rocker arm needs replacing, replace the secondary rocker arms as an assembly, then retest.
Fig. 2: Rocker arm assembly - 5.0L and 5.8L engines
* Apply engine oil or assembly lubricant to the valve stem tip and
pushrod end. Also apply lubricant to the rocker arm and fulcrum seat
contact surfaces. * Rotate the crankshaft until the lifter is on the camshaft base
circle (all the way down) and install the rocker, fulcrum seat and
fulcrum bolt. Tighten the bolts to 18-25 ft. lbs. (24-34 Nm). * Install the rocker arm cover(s).
Loosen rocker arm seat retaining bolts enough to allow rocker arm (6564) to be lifted off the push rod (6565) and rotate to one side.
Remove push rods . Identify position of each push rod . Push rods should be installed in their original position during assembly.
Remove cylinder head retaining bolts and discard.
Remove cylinder heads .
Remove and discard old head gaskets (6051) .
NOTE: Lightly oil all bolts and stud bolt threads before installation except those specifying special sealant. Clean cylinder head, intake manifold , valve cover (6582) and head gasket surfaces. If cylinder head was removed for head gasket replacement, check flatness and sealing areas for scratches of cylinder head and cylinder block gasket surfaces. Refer to Section 03-00 for procedure.
Position new head gaskets onto cylinder block (6010) using cylinder head to block dowels (6A008) for alignment.
Position cylinder heads onto cylinder block .
CAUTION: Always use new cylinder head bolts to ensure a leak-tight assembly. Torque retention with used bolts can vary, which may result in coolant or compression leakage at the cylinder head mating surface area.
For 3.8L non-SC engine, tighten cylinder head retaining bolts in numerical sequence in three steps as follows:
20 Nm (15 Lb-Ft)
40 Nm (29 Lb-Ft)
50 Nm (37 Lb-Ft)
CAUTION: Do not loosen all of the bolts at the same time, only work on one bolt at a time or possible damage to engine or leakage may occur. In sequence, loosen retaining bolts two to three revolutions and retighten bolts one at a time in the following manner:
15-25 Nm (11-18 lb-ft).
Tighten bolt an additional 85-95 degrees.
Go to next bolt in sequence.
10-20 Nm (7-15 lb-ft).
Tighten bolt an additional 85-95 degrees.
Go to next bolt in sequence.
Locating Pin (2 Req'd)
Cylinder Head Bolt (4 Req'd Each Side)
Cylinder Head Bolt (4 Req'd Each Side)
Cylinder Head to Block Dowel
NOTE: If original valve train components are being installed, a valve clearance check is not required. If a component has been replaced, perform a valve clearance check as outlined. Dip each push rod end in Engine Assembly Lubricant D9AZ-19579-D or equivalent meeting Ford Specification ESR-M99C80-A and install push rods in their original position.
For each valve, rotate crankshaft (6303) until valve tappet (6500) rests on the heel (base circle) of the camshaft lobe, before tightening rocker arm seat retaining bolts to 7-15 Nm (5-11 lb-ft) maximum.
Lubricate all rocker arms with Engine Assembly Lubricant D9AZ-19579-D or equivalent meeting Ford Specification ESR-M99C80-A.
Final-tighten the rocker arm seat bolts to 30-40 Nm (22-30 lb-ft). For final tightening, camshaft (6250) may be in any position.
Install exhaust manifolds as outlined.
Install lower intake manifold as outlined.
Install fuel injection supply manifold .
Position valve cover and new valve cover gasket (6584) on cylinder head and install retaining bolts. Note location of ignition wire routing clip stud bolts. Tighten retaining bolts to 9-12 Nm (7-9 lb-ft).
Hi, without a rocker arm, the valve would stay closed. As the lash adjusters may have been loose for a while, check the camshaft lobes for wear as well as the rockers themselves. Look around for other stuff the rocker may have damaged while bouncing around in the valve cover. Replace all of the lash adjusters, making sure to put the rockers back on their original valves. Not sure you need to pull the heads. Why don't you put it back together and run a compression test. If compression is good, valves are probably fine. Let me know if you have more questions, and thanks for using FixYa.
1- disconnect battery
2- remove valve cover
3- remove timing cover
4- set engine on top dead center #1cylinder
5- remove timing belt ( mark direction if re-using belt)
6- remove camshaft & rocker arms
7- remove spark plugs
8- install compression tester hose in cylinder that you want to replace seals and apply 90 to 120psi of air
9- install valve spring compression too and compress valve spring
10- remove valve spring locks and valve spring
11- remove old valve seal and replace with new
12- reverce order to reasable
1.5 and 1.8 engines: * Install the rocker arm and shaft assemblies. Tighten the rocker arm shaft retainer bolts to 23 ft. lbs. (32 Nm). * Check valve adjustment and install the valve cover. Tighten the
valve cover bolts to 16 inch lbs. (1.8 Nm) for the 1.5L engine or to 29
inch lbs. (3.3 Nm) for the 1.8L engine.
2.0 engine * Lubricate the rocker shaft with clean engine oil and install the rockers and springs in their proper places. * Install the rocker shaft assemblies on the engine. Tighten the bolts gradually and evenly to 21-25 ft. lbs. (29-35 Nm).
Fig. Rocker arm shafts and components-2.4L engine
* Fit the rocker shaft springs from above and position them so that
they are at right angles to the plug side. Install the rocker springs
before installing the exhaust side rocker shaft and rocker arm assembly.
* Install the exhaust side rocker shaft assembly in the engine.
Tighten the rocker shaft mounting bolts gradually and evenly to 23 ft.
lbs. (32 Nm). * Remove the lash adjuster retaining tools. * Install the rocker cover and tighten the mounting bolts to 30 inch lbs. (3 Nm). * Reinstall the spark plug wires to the spark plugs.
1.Install the camshaft after lubricating the journal of the camshaft with engine oil.2.Install the camshaft bearing caps. 3.Install the ignition coil.4.Install the rocker arm and rocker arm shaft.Refer to "Rocker Arms and Rocker Arm Shafts" section.5.Using special tools, Camshaft Oil Seal Installer (09221-21000), press fit the camshaft oil seal. Be sure to apply engine oil to the external surface of the oil seal.Insert the oil seal along the camshaft front end and install by driving the installer with a hammer until the oil seal is pulley seated.6.Install the camshaft sprocket and tighten the bolts to the specified torque.