Heavy Diesel Engine Overhauls
Full strip, measure, machine and rebuild of heavy diesel engines to OEM specification, returned with a warranty and the report to back it.
What the work involves
An engine that comes into the July Street workshop is stripped completely, cleaned, and measured before a single part is ordered. Bores, journals, decks and bearing housings are gauged against OEM limits and the findings go into a written strip report — you approve the rebuild scope knowing what is actually wrong, not what somebody guessed on the phone.
Machining is done through established engineering houses in the Middelburg corridor. Bearings, seals, gaskets, injectors and pumps are OEM or OEM-approved equivalents, and the substitution is disclosed rather than buried in a line item.
On assembly, torque and clearance are recorded at every critical joint. The engine is run, timed and load-checked before it leaves, and it goes out with the strip report, the parts schedule and the run sheet.
- Division
- Heavy Mechanical
- Availability
- Workshop programme with agreed turnaround
- Method steps
- 6
- Sectors served
- 5
- Base
- Middelburg
What this actually changes for your operation
Quoted after strip, not before
You approve a scope built on measured findings. No open-ended rebuild that grows every week you ask about it.
Torque and clearance recorded
Every critical joint is recorded on the build sheet. If something is queried later, there is a number to check it against.
Parts disclosed line by line
OEM or approved-equivalent is stated per item. You know exactly what went into the engine you are paying for.
Run and load-tested before release
The engine is run, timed and checked under load in the workshop, so the first time it works hard is not on your face.
How the work runs, step by step
- 01
Receive, log and strip
2–4 daysUnit is received against a job card, photographed, and stripped completely with components tagged to the job.
- 02
Clean, crack-test and measure
3–5 daysComponents are cleaned, crack-tested where specified, and dimensionally measured against OEM service limits.
- 03
Strip report and quotation
1–2 daysFindings, photographs and a line-by-line parts schedule are issued for approval before any machining or ordering starts.
- 04
Machining and parts
5–15 daysMachining is carried out through the engineering corridor on our doorstep; parts are drawn from OEM channels in Middelburg and Witbank.
- 05
Assembly to build sheet
4–8 daysAssembly proceeds with torque, clearance and end-float recorded at every critical joint on a signed build sheet.
- 06
Run, test and release
1–2 daysEngine is run, timed, load-checked and released with the strip report, parts schedule, build sheet and warranty terms.
What we bring to it
Engine stands and rotators
Full-rotation assembly of in-line and vee blocks
Overhead lifting
Rated lifting across the workshop bays for block and head handling
Precision measuring
Bore gauges, micrometers, dial indicators, straight edges
Torque and angle equipment
Calibrated wrenches and angle gauges to OEM procedure
Cleaning and crack detection
Component wash and dye-penetrant inspection
What is in place before work starts
Lifting done only on rated, inspected equipment with a competent rigger
Isolation and lock-out applied before any work on an installed engine
Waste oil, coolant and filters handled under the workshop's environmental controls
Hot work permits and fire watch for any welding or cutting in the bays
Where this service is used
What clients ask about this service
We do not quote a rebuild before the unit is stripped. The engine or transmission is stripped completely, cleaned and measured against OEM service limits, and you receive a written strip report with photographs and a line-by-line parts schedule. You approve a scope built on measurement, not on an estimate over the phone.
Usually bought alongside
Need heavy diesel engine overhauls?
Send the scope, the machine or the volume. You will get a straight answer on whether we can do it, when, and what it costs.
Breakdowns are answered 24 hours a day, every day of the year.