Diameter in Millimeters Diameter in Inches 0. This manual is published for informational purposes only and the information so provided p rovided should not be considered as all-inclusive or covering all contingencies. Stir the water constantly to avoid direct heat being applied to the thermostat. Install the bearing cap and tighten it to the specified torque. In cold weather, high speed diesel engines can be difficult to start because the mass of the cylinder block and cylinder head absorb the heat of compression, preventing ignition due to the greater surface-to-volume ratio. Rocker Arm Shaft Snap Ring 2. Is there anything unusual about the meshing of the pinion and ring gear teeth? Cha Ch amfe mfered I.
In North America, diesel engines are mostly used in large trucks, where the low-stress, high-efficiency cycle leads to much longer engine life and lower operational costs. All di and se 2. Place the idler gear in the pump body. Then remove the springs, Install the valves, springs, and retainers. The metal ring can then be removed by care- on the lip, press the removable half of the tool in and fully cutting it with a chisel.
Remove the glow plugs using a deep well socket. The connecting rods and caps are numbered 1, 2, 3 and 4 by the manufacturer. Injection Pump Idler Gear Mtg Bolt 55-5491 12 1. Relief Vale Tighten the relief valve to the specified torque. A pintle injector with a narrow spray pattern is used. There are should not need adjustment. If this occurs the rubber portion of the seal may be removed by Press the stationary half of the seal puller past and 3.
Rebuilding Isuzu 4hg1 Engine Manual can be very useful guide, and rebuilding isuzu 4hg1 engine manual play an important role in your products. It is very important that the valves be adjusted to the correct specifications for satisfactory engine operation. The addition of a prechamber, however, increases heat loss to the cooling system and thereby lowers engine efficiency. Repeat this procedure until the compound is used up. Take care not to damage the cylinder head 4. In all major aspects, the modern diesel engine holds true to Rudolf Diesel's original design, that of igniting fuel by compression at an extremely high pressure within the cylinder. Bring the piston in either the No.
Remove the pistons and connecting rods up through the top of the cylinder bore after removing the ring ridge, if necessary. Add shims, or change Test for dripping. Align the bearing oil holes with the cylinder body oil holes. Remove the exhaust manifold and the exhaust restriction on early engines that are so equipped. Press the front crankshaft seal into the timing gear cover after coating the outside edge of the seal with sil- After the engine oil system has been pressured checked, the assembly can be completed. If the valve does not consistently slide smoothly into the seat, replace the nozzle valve and seat set. New cam bearings should always After the components of the engine have been disassembled, repaired, reconditioned, or replaced, the engine can be assembled.
Run the engine on a test stand with no load for approximately 15 minutes in both low speed 1400 rpm and high speed 2200 rpm. Make sure that there are no ring end gaps aligned with each other or with the wrist pin. If cam bearings are replaced, the bear- Cam Bearing Installation ings will need to be line bored. Loosen the cylinder head bolts in the sequence shown. The injec tion timing mark has no identification markings other than the scribed line. Because of the very close tolerances of the wrist pin, piston bore and rod bushing bore 0.
Check the piston ring end gaps. The pistons Inspection and Reconditioning Rev. Remove the bolts from the camshaft thrust plate and remove the camshaft. Single Supported Driven Gear 4. The timing is measured in degrees of crank angle of the piston before top dead centre. The m ost accurate method 1. Using a dial indicator and a lathe, check the armature core for surface distortion, deflection and out of round.
Pressurize the lubrication system of the engine with an oil pressure tank if the engine has been stored for any length of time. Full Load Adjusting Screw factory set 3. Note: All foreign material must be carefully removed from the cylinder liner and the cylinder bore before installation. If there is more than assembly of individual engine components. Hardened Steel Face Contact Face Wear 5. Units with small crankshaft compressors and 6-pin flywheels are interchangeable with 8-pin flywheels provided you have the correct 8-pin clutch or 8-pin coupling. Remove the outlet adapter, and examine the outlet check valve.
Valve lash: Intake cold 0. Remove the oil filter assembly. This requires removing all injection nozzles. Use a feeler gauge to measure the clearance between the connecting rod big end side face and the crankpin side face. Diaphragm on bottom of spring 4.