Engine machine shop
Jimmy’s has its own engine machine shop in Ponchatoula for cylinder head rebuilding, cylinder head resurfacing and cylinder block boring.
- Cylinder head rebuilding
- Cylinder head resurfacing
- Cylinder block boring
Cylinder head rebuilding
A cylinder head contains the valves that let air into the cylinders and exhaust out. When head damage or wear is suspected, we can assess whether rebuilding the head is practical for the engine and discuss what needs to be repaired.
Cylinder head resurfacing
The cylinder head and engine block need a suitable mating surface for the head gasket to seal. If a head is warped or its surface is damaged, resurfacing may be an option after checking its condition and the engine’s machining limits.
Cylinder block boring
Worn or damaged cylinder walls can affect how well the piston rings seal. Boring machines the cylinder to an appropriate larger size where the block and rebuild specifications allow it. The decision depends on measurements and the parts required for the rebuild.
Talk to the machine shop about your engine
Call with the engine size or code, the vehicle details and what has already been diagnosed or disassembled. We can discuss whether machining is appropriate and how it fits into the larger repair or replacement decision.
What to know before calling about a cylinder head or block
Have the engine identification, the problem that led to disassembly and any measurements or findings from prior work. Tell the shop whether you have a complete vehicle or a head or block already removed. Call before bringing a loose component so Jimmy’s can confirm what it can take on and what needs to accompany it.
Choosing between machining and replacement
Resurfacing addresses the condition of the head’s sealing surface. Boring addresses the cylinder walls. Neither decision can be made from the symptom alone, and a part’s condition and allowable machining limits matter. Ask how the proposed machine work fits into the rest of the repair and what parts will be needed to complete it.
