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Fixing a Cracked Diesel Injector
Dec
Fixing a Cracked Diesel Injector
Refurbishing a diesel injector often requires repairing or replacing a cracked injector. In order to fix a cracked diesel injector, mechanics need masking tape, a marker, a set of wrenches, rags, welding equipment, a pressurized hose, injector cleaning equipment, and protective eye equipment.
Step |
Materials Needed |
Diesel Injector Repair Instructions and Considerations |
| Disconnecting the battery | Wrench | Locate the battery system
Using the proper wrench, completely remove or disconnect the battery Test an electronic component to expel any remaining electrical activity |
| Disassembling the injector | Masking tape
Marker Wrench |
Hold rag on pressure fitting and push to depressurize fuel system
Remove throttle cable and cruise control assembly with the wrench Fully remove injectors |
| Inspecting fuel injector components | Masking tape
Marker |
Take notes regarding the repairs needed for different injectors
Take note of the damage and determine if the problems are repairable |
| Determining intensity of damage | Protective eye goggles | Determine location of the cracks and develop solutions
If crack is on the housing, then only welding is required If crack is on the gear, then the gear needs to be replaced |
| Repairing the cracks | Welding equipment
Protective eye goggles Lubricant |
Make smooth patches on the cracks with welding equipment
Lube the o-ring and install it on each injector Using notes, reinstall fuel injectors in the proper order |
| Cleaning the injectors | Pressurized hose
Protective eye equipment Injector cleaning machine |
If injectors are not too dirty, then use the pressurized hose to remove dust and dirt
If the injectors are dirty, use the injector cleaning machine according to injector cleaning instructions |
| Testing | Nothing | Return fuel and pressure to the engine system
Test drive the car |
If the diesel injector system still does not work after these repairs, then mechanics should consider getting their injector replaced. Additionally, after a couple of repairs, it may be more cost effective to purchase new injectors as opposed to continuing to fix the old one.
