Engine block being hoisted in MJM Engines shop
In-House Machine Work

WE REBUILD ENGINES RIGHT. THE FIRST TIME.

MJM Engines in Escondido, CA runs a full in-house machine shop — no outsourcing, no shortcuts. Certified technicians, warranty-backed work.

Escondido, CA  ·  Mon–Fri 8am–5pm

In-House Machine Shop
Warranty-Backed Work
Certified Technicians
No Outsourcing

What We Do

PRECISION ENGINE SERVICES

Engine block at MJM Engines

ENGINE REBUILDS & REMANUFACTURING

Complete teardown, precision inspection, in-house machining, and reassembly to OEM specs — kind-for-kind replacement parts, no upgrades. Carry-out engine work also welcome.

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Fred working in MJM Engines machine shop

MACHINE SHOP SERVICES

Cylinder boring & honing, crankshaft grinding, surface decking, and valve seat cutting — all performed in our fully equipped in-house machine shop. No waiting on outside vendors.

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Why Choose Us

THE MJM DIFFERENCE

EVERYTHING IN-HOUSE

Our machine shop means faster turnaround and tighter quality control — every step happens under our roof.

WARRANTY YOU CAN COUNT ON

Every rebuild leaves with a written warranty covering parts and labor. We stand behind our work.

CERTIFIED TECHNICIANS

Our team holds ASE certifications and brings decades of hands-on engine experience to every job.

How It Works

OUR PROCESS

01

DROP OFF & DIAGNOSIS

We assess your engine and document every issue.

02

FULL TEARDOWN & INSPECTION

Complete disassembly and precision measurement.

03

MACHINE WORK & REBUILD

In-house machining, new parts, expert assembly.

04

QUALITY CHECK & WARRANTY

Final inspection, test, and written warranty issued.

READY TO GET YOUR ENGINE RUNNING RIGHT?

Call us today — we'll talk through your engine and get you a straight answer.

(760) 745-4104
MJM Engines

Engine rebuilds and remanufacturing done right — with an in-house machine shop and certified technicians in Escondido, CA.

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© 2026 MJM Engines. All rights reserved.

Escondido, CA 92029