Clean all the parts thoroughly and be careful not to fall into the foreign material.
Especially take deeper care on fuel line from common rail up to injector because this area has no filtering function.
Clean the holes which an injector and a high pressure connector will be put into before they are assembled.
430230-00005
430230-00006
65.10410-6002
High pressure connector
Fixing bolt
O-ring for high pressure connector 65.96501-0100
Fixing bolt
Injector Oring
65.10101-7098
Injector seal ring
65.96507-0052
Whenever disassembling the injector, fuel high pressure connector must be replaced with a new one.

If fuel goes in the combustion chamber during disassembling the injectors from the fuel return line and/or gap around the injector and high pressure connector, please remove the fuel by sucking with hand pump or short cranking with fuel stop.
< Injector and high pressure connector assembly procedure >
1)The injector should be assembled correctly on the following procedure.
Fixing bolt
Injector fixing bracket
Injector
65.10101-7097
65.96507-0052 Seal ring for injector
Coat the engine oil on O-ring 65.10101-7098 (Be careful not to allow the engine oil to go into the hole for hige pressure connector)
High pressure connector
65.10410-6002
430230-00005
430230-00006
Coat the engine oil on the O-ring 65.96501-0100

65.10350-0001
Adapter, high pressure fuel line to high pressure connector
2) Clean the holes which an injector and a high pressure connector will be put into before they are assembled. Engine oil and fuel that might went into during disassembly should be wiped out especially for the holes where a fuel high pressure connector & an injector will be put into.
3)Coat the fresh engine oil on the O-ring of the injector. At the same time, be careful not to allow the engine oil or foreign material to go into the holes for a fuel high pressure connector. 4 3 5 1 2 ,
Doosan Generator Engine Parts contact:
Email: EngineParts@HeavyEquipmentRestorationParts.com alternate email: EngineParts2@gmail.com Heavy Equipment Restoration Parts LLC
4730 118th Ave Fennville Michigan 49408 USA
Phone: 269 673 1638 Text: 269 760 8652 Website: www.HeavyEquipmentRestorationParts.com
4) First, set the position between the hole of fixing bracket and the tap hole of the bolt for injector fixing bracket. Second, insert the injector vertically to the hole. Put the bolt of the injector fixing bracket into a thread on the head and tighten about 2 ~ 3 turns with hands.
• Assembling injector jig : EF.120-277
• Assembling high pressure connector jig : EF.120-277
Injector turning tool
Injector
Set the Injector hole
High pressure connector jig

EF8OM091
5) [, \Temporarily mount the fixing bolt assemble with pre-tightening torque while aligning an injector and a fuel high pressure connector. Through this step, the sealing and O-ring is placed correctly on the cylinder head and fuel lines are to be fit together. Afterwards release the injector by loosening the fixing bolt and then injector pre-load leads to 0 (zero) kg•m.
6) ] Coat the fresh and clean engine oil on O-ring on the adapter of high pressure connector. Insert the high pressure connector and fuel delivery adapter into the cylinder head. Push the connector into the hole until feeling it contacted.
Install the injector with pre-tightening torque and then loosen the fixing bolt. Assemble the seal ring for the contacted surface it.
1 2 ,
Mount the high pressure connector and then assemble the fixing bolt with pre-tightening torque.

1 st step : Installing injector & pre-tightening
Doosan Generator Engine Parts contact:
2 nd step : Installing high pressure connector & temporarily assembling
Email: EngineParts@HeavyEquipmentRestorationParts.com alternate email: EngineParts2@gmail.com
Heavy Equipment Restoration Parts LLC 4730 118th Ave Fennville Michigan 49408 USA
Phone: 269 673 1638 Text: 269 760 8652
Website: www.HeavyEquipmentRestorationParts.com
7)The injector and high pressure connector should be assembled correctly by the following order.
^ Finally tighten the fixing bolt of injector up to the specified torque while the high pressure connector is still pre-tightened.
8) Finally assemble the high pressure connector. Tighten the fixing bolt of high pressure connector adapter according to the specified torque by the torque wrench. Please keep and obey this procedure and work order.
Final tighten the fixing bolt of injector with specified torque
Final step : Final assemble injector with specified torque
Final tighten the fixing bolt of high pressure connector with specified torque
Final step : Final assemble high pressue connector with specified torque
Doosan Generator Engine Parts contact: Email: EngineParts@HeavyEquipmentRestorationParts.com alternate email: EngineParts2@gmail.com
Heavy Equipment Restoration Parts LLC 4730 118th Ave Fennville Michigan 49408 USA
Phone: 269 673 1638 Text: 269 760 8652 Website: www.HeavyEquipmentRestorationParts.com