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I need the titening torque specs on a Isuzu 4hk1, big end bolts,cilinder bolts and injector timing marks on the flywheel and cam gears

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  • Steve Hurc
    Steve Hurc Dec 11, 2014

    Hi HANNELIE PRETORIUS, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? VIN number please

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  • Isuzu Master
  • 450 Answers

Head bolts
98 N?m (10 kg?m/72 lb?ft) ?147 N?m (15 kg?m/108 lb?ft) ? 30° - 60°

big ends
39 N?m(4.0 kg?m/29 lb?ft) ? 60° ?30

flywheel is dowled pined to crankshaft so it goes in correct position.so cant get that wrong unless someone has removed dowel pin.

timing mark on front pulley in middle of pulley aligns up with mark in front timing cover, and cam should have dot or "B" (depending on year) that aligns up with outer edge of head when TDC No1 firing. in this position the injector pump if common rail has dot on gear that aligns to casting mark on pump near where shaft for gear comes out of pump (can only see when pump is removed) white texta mark the tooth with the dot and fit pump while all other marks previuosly mentioned are still in correct position, in side of bell housing there should be an inspection nut or plastic bolted tear drop cover to remove close to chassis rail look inside with mirror and torch and white texta marked tooth should be in middle of this inspection hole to confirm its not a tooth out.

Posted on Dec 11, 2014

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Flywheel torque spec's for 1983 Ford F-100


Could it be a F-150 instead?
Ford Engine Bolt Torque Chart Bolt Torque Spec Chart for Ford Engines

These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. If you use after-market performance bolts like ARP's, you should follow the recommended torque specifications.

260, 289, 302 Torque Spec.
Fastener Type Torque Spec Main cap bolts 60-70 ft-lbs Outer main cap bolts 35-40 ft-lbs. Connecting rod bolts (40-45 ft-lbs. for 289 HP & Boss 302) Cylinder head bolts 65-72 ft-lbs. Rocker arms 17-23 ft-lbs. Intake manifold bolts 23-25 ft-lbs Oil pump bolt 23-28 ft-lbs. Cam bolts 40-45 ft-lbs. Cam thrust plate bolts 8-10 ft-lbs. Harmonic damper bolts 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-15 ft-lbs. 351W Torque Spec.
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Torque spec's for the fly wheel


Ford Engine Bolt Torque Chart Bolt Torque Spec Chart for Ford Engines

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260, 289, 302 Torque Spec.
Fastener Type Torque Spec Main cap bolts 60-70 ft-lbs Outer main cap bolts 35-40 ft-lbs. Connecting rod bolts (40-45 ft-lbs. for 289 HP & Boss 302) Cylinder head bolts 65-72 ft-lbs. Rocker arms 17-23 ft-lbs. Intake manifold bolts 23-25 ft-lbs Oil pump bolt 23-28 ft-lbs. Cam bolts 40-45 ft-lbs. Cam thrust plate bolts 8-10 ft-lbs. Harmonic damper bolts 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-15 ft-lbs. 351W Torque Spec.
Fastener Type Torque Spec Main cap bolts 95-105 ft-lbs Connecting rod bolts 40-45 ft-lbs. Cylinder head bolts 90-100 ft-lbs. Rocker arms 17-23 ft-lbs. Intake manifold bolts 23-25 ft-lbs. Oil pump bolts 23-28 ft-lbs. Cam bolts 40-45 ft-lbs. Cam thrust plate bolts 8-10 ft-lbs. Harmonic damper bolt 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-15 ft-lbs. 351C, 351M Torque Spec.
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1 Answer

1995 2.3L 4W ISUZU RODEO HOW DO YOU GET IT BACK IN TIME


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1 Answer

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our Hombre used this engine.
The LK5 (also called the Vortec 2800) is a 2,770 cc (169 cu in) straight-4 DOHC engine,

Applications include the 2000 Isuzu NPR350A
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DIESEL

I googled for you and 3rd hit , is
http://www.nationaltruckspares.com.au/P_Isuzu-Isuzu-4HK1-NPR75-Etc-Torque-Specification-.aspx?id=3650

see the spec there. in nM>?

it states
M14 bolts 98 nm then 147 nm then + between 30 to 60 Degrees
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Commonly Asked Torque Specs in foot pounds
The main bolts have a torque of 76 lb.-feet and the cylinder head bolts have 62 lb.-feet of torque. The cylinder head studs have 70 foot-lbs of torque, the cam timing gear have lb.-feet of torque, and the cam bearing bolt has 14 lb.-feet of torque.

Crankshaft Torque Specs
  • The stock rod bolts have 46 lb.-feet of torque and the ARP rod bolts have 50 lb.-feet of torque. The crankshaft pulley has 116 lb.-feet of torque, while the flywheel has 80 lb.-feet of torque.


Other Torque Specs
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Hello,I am overhauling a 4hf1 engine and need torque-timing and other calibration specifications.


Main bearings - stage 1-80 Nm; stage 2-100Nm.Big ends-stage 1-22Nm,stage 2 -45Nm.Flywheel/drive plate-55Nm.Crankshaft puley-120Nm.Cil.head as main bearings.Valve clearance - cold - inlet-0.15 , exhaust - 0.25. Timing 6/800 at sea level.Good luck!

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1 Answer

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