ON-SITE COUNTER BORE MACHINING
Precision Diesel Machining
RESTORE THE FOUNDATION OF YOUR DIESEL ENGINE
PRECISION COUNTER BORE MACHINING AT YOUR LOCATION
Counter bore machining is a precision process used during certain heavy-duty diesel engine rebuilds to restore worn or damaged cylinder-liner counterbores in the engine block.
Bo’s Garage performs on-site counter bore machining at your facility or job site. This is an important and critical step within the engine rebuilding process. Each block is inspected and measured to determine the machining and shim requirements for the application.
Call us with your engine information to discuss our counter bore machining service.
ON-SITE MACHINING
Performed at our Thomasville shop or your location or worksite.
PRECISION MEASUREMENT
Counterbores inspected and machined to application requirements
BUILT FOR HEAVY-DUTY
Supporting commercial diesel engine rebuilds
What Is Counter Bore Machining?
WHY PROPER LINER HEIGHT MATTERS
PRECISION AT THE LINER SEAT HELPS PROTECT THE ENTIRE ENGINE
A heavy-duty diesel engine’s cylinder liners rest on precisely machined surfaces in the engine block. Wear, fretting or erosion around these surfaces can prevent a liner from seating correctly.
Counter bore machining removes a controlled amount of material to create a clean, level liner seating surface. The appropriate counterbore shims can then be selected to help restore the required liner height for the engine application.
Correct measurement and liner positioning are important to cylinder-head sealing, load distribution and the long-term reliability of a rebuilt engine.
WHEN COUNTER BORE MACHINING MAY BE NEEDED
Final recommendations depend on the engine application and the measured condition of the block.
Our Process
FROM INSPECTION TO FINAL VERIFICATION
PRECISION AT EVERY STEP. VERIFIED BEFORE THE REBUILD CONTINUES.
INSPECT & MEASURE
The block and individual counterbores are inspected and measured to determine their condition.
MACHINE THE LINER SEAT
Worn or damaged material is carefully removed to create a clean, level seating surface.
DETERMINE SHIM REQUIREMENTS
The appropriate counterbore shims are selected for the engine and machining performed.
VERIFY FINAL DIMENSIONS
Counterbore depth and liner-positioning measurements are checked before engine assembly continues.
Every counterbore is carefully evaluated, machined and measured to help restore proper liner fit and support a dependable engine rebuild.
In-House & On-Site Capability
IN-HOUSE & ON-SITE CAPABILITY. ONE POINT OF CONTACT.
PRECISION COUNTER BORE MACHINING WHERE THE WORK REQUIRES IT
Bo’s Garage provides counter bore machining both in-house at our Thomasville shop and on location, giving customers greater flexibility when engine-block machining is needed. Our team handles the inspection, measurement, machining and verification required to help restore proper liner fit as part of the rebuilding process.
Bo’s Garage works with CAT, Cummins, Detroit Diesel, Mack, International, Volvo and Paccar diesel engines. Counter bore machining availability depends on the specific engine model, block condition and service location, so call with your engine information to discuss the job.
