Question about 1995 Nissan Pickup

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While changing the head gasket, two bolts broke on the exhaust manifold. any ideas on what road to take?

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Since you already have the manifold off the best is to drill and retap the manifold, if you're not confident take it to a machine shop

Posted on Aug 03, 2010

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1 Answer

Head gasket or lower intake gasket on 98 Blazer


this does sound like a head problem (hopefully just the gasket). pulling the head with the exhaust manifold attached is possible but tricky and difficult. risking the bolt and drilling it out if it snaps would be alot easier. I would strongly suggest having the head checked while its off (so you dont rebuild to find that you wasted time and money on a bad head)

Feb 11, 2014 | Cars & Trucks

1 Answer

Engine noise


Two things which come to mind are the new manifold/gasket did not seat or cracked when torqued down, or there was a problem with a stud.
For the stud, if the stud turned further into the head when the nut was tightened, it could have cracked the head. Some manifolds used bolts instead of nuts to fasten the manifold. Memory fails me which type you have, but you could check to see if all bolts have same Part# per Dealer and if different, the wrong length could have gone into the wrong place.
For Future reference, there are some new ideas in manifold fasteners by Aftermarket makers. Each fastener is 2-piece and the seats expand when the bolt is installed.
I think your new manifold cracked. Exhaust leaks sound like a knock each time that cylinder fires with the cracked port.
Would like to know what you found.

Jun 05, 2013 | 1995 Ford F350

1 Answer

I need head bolt torque specs for a 2000 cadillac deville dts..


DeVille, Eldorado, Seville 1999-2005

Cylinder Head

Print


Removal & Installation

Left Side

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Drain the cooling system.
  3. Properly relieve the fuel system pressure.
  4. Remove or disconnect the following:

    Negative battery cable Exhaust manifold Alternator Water crossover Intake manifold Valve cover Timing cover Secondary camshaft drive chain Power steering return hose retaining bolt from the cylinder head 3 M6 external drive bolts from the front portion of the cylinder head 10 M11 internal drive cylinder head bolts Cylinder head and gasket.
  5. Clean the head mating surfaces.

To install:

0996b43f80231662.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Left cylinder head bolt torque sequence-4.6L engine

  1. Install the cylinder head with a new gasket. Lubricate the bolts with engine oil prior to installation.
  2. Torque the M11 bolts in sequence as follows:
    1. Step 1: 30 ft. lbs. (40 Nm), plus an additional 70 degrees
    2. Step 2: Turn an additional 60 degrees
    3. Step 3: Turn an additional 60 degrees (total 190 degrees)

  3. Torque the M6 bolts to 106 inch lbs. (12 Nm)
  4. Install or connect the following:

    Power steering return hose retaining bolt to the cylinder head and tighten to 37 ft. lbs. (50 Nm) Secondary camshaft drive chain Timing cover Valve cover Intake manifold Water crossover Exhaust manifold Negative battery cable
  5. Change the oil and filter.
  6. Fill the cooling system.

Right Side
  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Drain the cooling system.
  3. Properly relieve the fuel system pressure.
  4. Remove or disconnect the following:

    Negative battery cable Exhaust manifold Water crossover Intake manifold Valve cover Timing cover Secondary camshaft drive chain Electrical connector from the Engine Coolant Temperature (ECT) sensor Nut attaching the coil cassette ground wire to the cylinder head Bolt attaching the exhaust crossover pipe to the cylinder head Bolt attaching the right transaxle mount bracket to the cylinder head Bolt attaching the rear transaxle brace to the transaxle Nuts attaching the rear transaxle brace to the cylinder head Rear transaxle brace 3 M6 external drive bolts from the front portion of the cylinder head 10 M11 internal drive cylinder head bolts Cylinder head and gasket
  5. Clean the head mating surfaces.

To install:

0996b43f80231663.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Right cylinder head bolt torque sequence- 4.6L engine

  1. Install the cylinder head with a new gasket. Lubricate the bolts with engine oil prior to installation.
  2. Torque the M11 bolts in sequence as follows:
    1. Step 1: 30 ft. lbs. (40 Nm), plus an additional 70 degrees.
    2. Step 2: Turn an additional 60 degrees.
    3. Step 3: Turn an additional 60 degrees (total 190 degrees).

  3. Torque the M6 bolts to 106 inch lbs. (12 Nm).
  4. Install or connect the following:

    Rear transaxle brace over the studs located at the rear of the right cylinder head Nuts attaching the rear transaxle brace to the cylinder head, loosely Bolts attaching the rear transaxle braces to the transaxle and tighten to 37 ft. lbs. (50 Nm) Nuts attaching the rear transaxle brace to the cylinder head and tighten 37 ft. lbs. (50 Nm) Electrical connector to the ECT sensor Bolt attaching the exhaust crossover pipe to the cylinder head and tighten to 18 ft. lbs. (25 Nm) Nut attaching the coil cassette ground wire to the cylinder head and tighten to 13 ft. lbs. (17 Nm) Secondary camshaft drive chain Timing cover Valve cover Intake manifold Water crossover Exhaust manifold Negative battery cable
  5. Change the oil and filter.
  6. Fill the cooling system.

Apr 16, 2013 | 2000 Cadillac DeVille DTS

1 Answer

Were to start when changing cylinder head gasket


put in time and remove valve cover, front engine cover, timing belt ,exhaust at manifold, intake manifold and remove head bolts, pull head clean all surfaces replace gasket after head ck for cracks follow specs on bolts and put back together in a shop in would take about 4 to 6 hrs to do .

Jul 15, 2012 | 2002 Daewoo Lanos

1 Answer

Could you advise what are the cylinder head bolt tension settings for hyundai lantra j5. Could you email me back on judy.ben@optusnet.com.au. Thanks


let me see if i can get some info 4 you.

edit
REMOVAL

1. Drain the coolant and disconnect the upper radiator hose.
2. Remove the breather hose (between the air cleaner and the head cover).
3. Remove the air-intake hose.
4. Remove the vacuum hose, fuel hose and coolant hose.
5. Remove the cables from the spark plugs. The cables should be removed by holding the boot portion.
6. Remove the ignition coil.
7. Remove the power steering oil pump and bracket.
8. Remove the intake manifold.
9. Remove the heat protector and exhaust manifold assembly.
10. Remove the coolant pump pulley and the crankshaft pulley.
11. Remove the timing belt cover.
12. Remove the timing belt tensioner pulley.
13. Remove the timing belt.
14. Remove the head cover.


15. Remove the cylinder head assembly. The cylinder head bolts should be removed by using Special Tool, Cylinder Head Bolt Wrench (09221-32001) or equivalent, in the sequence as shown in the illustration in two or three steps.
16. Remove the gasket pieces from the cylinder block top surface and cylinder head bottom surface. NOTE: Make sure that the gasket pieces do not fall in the engine.

INSTALLATION

1. Clean all gasket surfaces of the cylinder block and the cylinder head.
2. Install a new cylinder head gasket onto the cylinder head assembly. Apply sealant to the gasket and do not reuse the old cylinder head gasket.


3. Install the cylinder head bolts. Starting at top center, tighten all cylinder head bolts in sequence as shown in illustration, using the Cylinder Head Bolt Wrench (09221 - 32001) or equivalent. Repeat the procedure, re-tightening all cylinder head bolt to the specified torque. (torque spec is Cold Engine 105-115 Nm (76-83 ft lb) )
4. Install the timing belt tensioner pulley.
5. Install the timing belt on the camshaft sprocket, making sure that the tension side is tightened by turning the camshaft sprocket in reverse, all timing marks are in alignment.
6. Adjust the timing according to "Timing Belt"
7. Install the rocker cover and tighten the bolts to the specified torque. Tightening torque: Rocker cover belt:

2.5-3.5 Nm (25-35 kg.cm, 2-3 ft. lbs.)

8. Install the timing belt cover.
9. Install the new intake manifold gasket and the intake manifold. Tighten the nuts and bolts to the specified torque.
10. Install the new exhaust manifold gasket and the exhaust manifold. Tighten the exhaust manifold attaching nuts to the specified torque.
11. Install the surge tank and tighten the nuts bolts to the specified torque.
12. Install the power steering oil pump and bracket.
13. Install the ignition coil.
14. Install the air intake hose.
15. Connect the vacuum hose, fuel hose and water hose.
16. Install breather hose.

Jun 08, 2011 | Hyundai Elantra Cars & Trucks

2 Answers

Good morning changing haed gasket on 1.5 hyundai accent how much torque for head bolts and rocker arm bolts


cylinder head bolts 52-55 ft lbs. engine cold 59-63 ft lbs. engine hot

rocker arm shaft bolts 15-20 ft lbs.

intake manifold bolts 11-15 ft lbs.

exhaust manifold bolts 22-30 ft lbs.

valve cover bolts 79-81 in lbs.

May 12, 2011 | Hyundai Motor 1998 Accent

1 Answer

Where are the exhaust system bolts located?


Removal & Installation 2.2L Engine To Remove:
  1. Remove or disconnect the following:
    • Negative battery cable.
    • Heat shield.
    • Oxygen sensor.
  2. Raise and safely support the vehicle.
  3. Remove exhaust pipe from the exhaust manifold.
  4. Lower the vehicle.
  5. Remove the exhaust manifold mounting nuts from the cylinder head. chevy_cav_02-04_exmanifold.gif

  6. Remove the exhaust manifold.
  7. Clean the mating surfaces.
  8. Check for cracks, broken flanges and gasket surface damage.
  9. Use a straight edge and a feeler gauge. If the flanges or the mating surfaces do not align, the manifold is warped and should be replaced.
To Install:
NOTE: The manufacturer recommends using new exhaust system nuts.
  1. Install the manifold gasket.
  2. Position the exhaust manifold to the cylinder head. Exhaust manifold 2.2L 87953055.gif

  3. Install the new exhaust manifold nuts. Tighten the nuts starting from the center and working toward the ends to 110 in lbs (12.5 Nm).
  4. Raise and safely support the vehicle.
  5. Install the exhaust pipe to the manifold using a new flex coupler gasket.
  6. Install new exhaust flange mounting nuts.
    • Tighten to 33 ft lbs (45 Nm).
  7. Lower the vehicle.
  8. Install the oxygen sensor.
  9. Install the heat shield.
  10. Connect the negative battery cable.
2.4L Engine To Remove:
  1. Disconnect the negative battery cable
  2. Disconnect the Oxygen (O2) sensor electrical connector.
  3. Remove the (O2) sensor.
  4. Raise and safely support the vehicle. Exhaust brace 2.4L 87953053.gif

  5. Remove the exhaust manifold brace-to-manifold bolt and the oil pan nuts, if necessary. Exhaust heat shield 2.4L 87953051.gif

  6. Remove the upper heat shield. NOTE: Do NOT bend the exhaust flex decoupler more than necessary to remove it. Excessive movement will damage the flex decoupler
    Exhaust flex decoupler 87953056.gif

  7. Remove the manifold-to-exhaust flex decoupler fasteners.
  8. Remove the exhaust pipe.
  9. Carefully lower the vehicle.
  10. Remove the exhaust manifold-to-cylinder head mounting nuts/bolts. Remove the exhaust manifold.
  11. Discard the gaskets and/or seals. Clean the mating surfaces.
To Install:
Exhaust manifold 2.4L 87953055.gif

  1. Install new exhaust manifold gaskets. Position the exhaust manifold on the cylinder head. Tighten the mounting bolts in sequence to 110 in lbs (12.5 Nm).
  2. Raise and safely support the vehicle.
  3. Install the exhaust manifold heat shield. Tighten the mounting bolts to 10 ft. lbs (14 Nm).
  4. Install the exhaust manifold brace-to-manifold bolt and the oil pan nuts. Tighten the mounting bolts to 41 ft lbs (56 Nm) and the nuts to 18 ft lbs (24 Nm).
  5. Position the exhaust pipe to the manifold. Install the manifold-to-flex decoupler mounting bolts. Tighten to 26 ft lbs (35 Nm).
  6. Lower the vehicle.
  7. Coat the threads with a suitable anti-seize compound and install the O2 sensor.
  8. Connect the O2 sensor electrical connector.
  9. Connect the battery ground cable and check for leaks.
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Sep 02, 2010 | 2000 Oldsmobile Alero

2 Answers

Torque specification on a 2003 alero cylinder heads 3.4 liter


3.4L Engine To Remove:
  1. Remove the lower intake manifold.
  2. Remove the exhaust crossover pipe.
  3. If removing the right cylinder head, remove the catalytic converter from exhaust manifold.
  4. If removing the left cylinder head, remove the engine oil dipstick and tube.
  5. Remove the rocker arms and pushrods.
  6. Remove and discard the cylinder head bolts.
  7. Remove the cylinder head.
  8. Clean the mating surfaces on the following items:
    • Cylinder head
    • Cylinder block
    • Intake manifold
  9. Clean the cylinder block bolt threads.
NOTE: During disassembly, keep the valve train components together for proper location during assembly.
To Install:
NOTE: Coat the cylinder head bolt threads using thread sealer.
  1. If removed, install the following components:
    • Exhaust manifold
    • Accessory studs
    • Spark plugs
  2. Place the cylinder head gasket in position over the dowel pins. Ensure that the THIS SIDE UP note is showing.
  3. Install the cylinder head. Cylinder head torque sequence ’99-‘00 gmpc_v6_14.gif

    Cylinder head torque sequence ’01-05 gm-03-34-682.gif

  4. Install the new cylinder head bolts.
    • Tighten the cylinder head bolts a first pass to 44 ft lb (60 Nm).
  5. Tighten the cylinder head bolts in sequence an additional 95 degrees.
  6. Install the intake gasket.
  7. Install the pushrods and rocker arms.
  8. Raise and support the vehicle.
  9. Install the catalytic converter and dipstick tube and indicator if removed.
  10. Lower the vehicle.
  11. Install the exhaust crossover pipe.
  12. Install the intake manifolds.
  13. Connect negative battery cable.
  14. Fill the cooling system.

Jul 03, 2010 | 2003 Oldsmobile Alero

2 Answers

Head gasket torque specifications and sequense


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Left side front cylinder head


98e175a.gif
Cylinder head bolt torque sequence—3.4L engine

  • Cylinder head by aligning it with the dowel pins
  • New cylinder head bolts coated with a sealant (such as GM 1052080). Torque the bolts in the proper sequence (1-8) to 37 ft. lbs. (50 Nm). Using a torque angle meter turn the bolts 90 degrees in the proper sequence.
  • Left side exhaust manifold. Torque the bolts to 12 ft. lbs. (16 Nm).
  • Spark plugs. Torque the plugs 11 ft. lbs. (15 Nm).


  • Right side rear cylinder head:


    71cd5b7.gif
    Cylinder head bolt torque sequence—3.4L engine


  • New cylinder head gasket
  • Cylinder head on top of the gasket and make certain it is lined up properly with the dowel pins
  • New cylinder head bolts coated with a sealant (such as GM 1052080). Torque the bolts in the proper sequence (1-8) to 37 ft. lbs. (50 Nm). Using a torque angle meter turn the bolts 90 degrees in the proper sequence.
  • Right side exhaust manifold. Torque the bolts to 12 ft. lbs. (16 Nm).
  • Spark plugs. Torque the plugs 11 ft. lbs. (15 Nm).
  • Spark plug wires
  • Exhaust crossover pipe. Torque the fastener to 18 ft. lbs. (25 Nm).
  • Valve rocker arms and pushrods. Torque the fastener to 89 inch lbs. (10 Nm). Using a torque angle meter torque the fastener an additional 30 degrees.
  • Lower intake manifold. Torque the bolts to 115 inch lbs. (13 Nm).
  • Upper intake manifold. Torque the bolts to 18 ft. lbs. (25 Nm).
  • Mar 06, 2010 | 2001 Chevrolet Venture

    1 Answer

    I need a diagram of a 1995 ford escort engine


    96 escort 1.9L

    bb97132.gif
    e0d7524.gif

    Engine Components
    Item Part Number Description 1 6766 Oil Filler Cap 2 6A548 (8 Req'd) Valve Cover Bolt 3 6582 Valve Cover 4 — Exhaust Manifold Shield-to-Exhaust Manifold Nut (4 Req'd) 5 9A462 Exhaust Manifold Shield 6 — Exhaust Manifold Shield Stud (4 Req'd) 7 9430 Exhaust Manifold 8 9454 Exhaust Manifold Nut 9 9448 Exhaust Manifold Gasket 10 — Exhaust Manifold Stud (Fine Thread), Short (4 Req'd) 11 — Exhaust Manifold Stud, Long (1 Req'd) 12 — Exhaust Manifold Stud (Medium Thread), Short (1 Req'd) 13 6518 Valve Spring Retainer Key 14 6514 Valve Spring Retainer 15 6513 Valve Spring and Damper, Intake 16 6C515 Valve Tappet Guide Plate Retainer 17 6571 Valve Stem Seal 18 6513 Valve Spring, Exhaust 19 12405 Spark Plug 20 6269 Camshaft Thrust Plate 21 — Camshaft Thrust Plate Bolt (2 Req'd) 22 — Cup Plug 23 6B273 Camshaft Oil Flow Control Rod 24 6K292 Camshaft Front Seal 25 6256 Camshaft Sprocket 26 6278 Camshaft Sprocket Washer 27 6K252 Camshaft Sprocket Retaining Bolt 28 6L269 Camshaft Sprocket Key (5 x 18) 29 6250 Camshaft 30 6051 Head Gasket 31 6A008 Cylinder Head to Block Dowel 32 6010 Cylinder Block 33 6507 Intake Valve 34 6505 Exhaust Valve 35 6049 Cylinder Head 36 — Intake Manifold Stud (7 Req'd) 37 17A084 Engine Lifting Eye 38 — Engine Lifting Eye Bolt (2 Req'd) 39 9439 Intake Manifold Gasket 40 — Bolt 41 9723 Accelerator Cable Bracket 42 9424 Intake Manifold 43 — Intake Manifold Nut (7 Req'd) 44 9D476 EGR Valve Gasket 45 — Exhaust Gas Recirculation (EGR) Valve Bolt (2 Req'd) 46 9D475 EGR Valve 47 — Fuel Injection Supply Manifold Bolt
    (2 Req'd) 48 9F593 Fuel Injector 49 9D930 Fuel Charging Wiring 50 6786 Oil Level Indicator Tube Bracket 51 — Oil Level Indicator Tube Bracket Bolt 52 6754 Oil Level Indicator Tube 53 6750 Oil Level Dipstick 54 9D280 Fuel Injection Supply Manifold 55 — Vacuum Fitting 56 9E498 Main Emission Vacuum Control Connector 57 — Vacuum Tap 58 — Vacuum Hose 59 9B989 Throttle Position Sensor 60 — Screw and Washer 61 9F782 Throttle Position Sensor Gasket 62 — Throttle Body Bolt (4 Req'd) 63 — Idle Air Control (IAC) Valve Bolt
    (2 Req'd) 64 9F715 Idle Air Control Valve 65 9F670 Idle Air Control Gasket 66 9E926 Throttle Body 67 9E936 Throttle Body Gasket 68 — Vacuum Fitting 69 — Camshaft Position Sensor Screw 70 6B288 Camshaft Position Sensor 71 8255 Water Hose Connection Gasket 72 — Water Hose Connection Bolt (3 Req'd) 73 8592 Water Hose Connection 74 8575 Water Thermostat 75 6065 Cylinder Head Bolts 76 6500 Valve Tappet 77 6K512 Valve Tappet Guide Plate 78 6564 Rocker Arm 79 6A528 Rocker Arm Seat 80 6A527 Rocker Arm Bolt (8 Req'd) 81 — Ignition Coil Mounting Bracket Bolt
    (3 Req'd) 82 18827 Noise Filter Condenser 83 — Ignition Coil Mounting Bolt (4 Req'd) 84 12259 Spark Plug Wire Set 85 12029 Ignition Coil 86 12043 Ignition Coil Mounting Bracket A — Tighten to 5-12 Nm (4-9 Lb-Ft) B — Tighten to 5-7 Nm (3-5 Lb-Ft) C — Tighten to 21-26 Nm (16-19 Lb-Ft) D — Tighten to 2-10 Nm (1.5-7 Lb-Ft) E — Tighten to 8-13 Nm (6-9 Lb-Ft) F — Tighten to 40-55 Nm (30-41 Lb-Ft) G — Tighten to 16-20 Nm (12-15 Lb-Ft) H — Tighten to 20-30 Nm (15-22 Lb-Ft) I — Tighten to 8-10 Nm (6-8 Lb-Ft) J — Tighten to 8-11 Nm (6-9 Lb-Ft) K — Tighten to 23-30 Nm (17-22 Lb-Ft) L — Tighten to 20-40 Nm (15-30 Lb-Ft) M — Tighten to 4.5-7 Nm (3-5 Lb-Ft) N — Tighten to 18-26 Nm (13-19 Lb-Ft)

    Feb 24, 2009 | 1995 Ford Escort

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