The art of automotive engine remanufacturing
Blocks are line honed using a Sunnen CH-100 line hone. Blocks are bored with a Rottler boring bar and honed in a Rottler HP6 machine.
Step one: Core
Every engine is thoroughly cleaned . This is probably the most important job in the engine rebuilding process. Any experienced engine builder/machinist will tell you, starting an engine with dirt will lead to premature engine failure.
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Seal power pistons
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King bearings
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Felpro
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Victor Reinz
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Melling
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SA Gear
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Parts
Tip: Cores are engines that can be serviced/machined
A core engine is pulled from inventory to be disasembled and cleaned
Step two: cleaning
Step three: Test & Checks
Step four: Machining
Engine Block
Cylinder Head
Camshaft
Connecting Rods
Crankshaft
The crankshaft is check with micrometers for size and ground if needed
Oil holes are chamfered.
Crankshaft are polished and re-cleaned
After the initial cleaning, all blocks are checked for cracks. All bolt holes are checked for thread wear and repaired if needed. Block decks are checked. All crankshafts are magna fluxed for cracks and checked with micrometers . The cylinder heads are tested for cracks in an Axe pressure testing machines. We use Axe because it completely submerges the cylinder head in water and when air pressure is applied, cracks can easily be detected. All bolt holes are checked to ensure threads are good and repaired if needed. Guides are checked and replaced if worn. Seats are checked and replaced if they can not be machined. Valves are check for wear and replaced if needed. All fracture/broken rods are replaced if not within spec. Machined connecting rods are serviced.
Step Five: Assembly
All Barnettes Remanufactured engines are assembled in a clean room. This room is seperated from the rest of the shop, eliminating the possiblity of contaminates. All engine parts and compnents required to rebuild the engine (I.E. pistons, main and rod bearings, thrust bearings, cylinders, crankshafts, connecting rods and push rods) are measured again by the engine builders. After all parts are checked, the engines are assembled measuring tolerencess and clearences regularly. Our builders have over 78 years of combined experience in the engine building industry.
Step Six: Shipping
Fracture/broken rods are replaced.
Connecting rods and caps are cut using a sunnen cap cutter. Connecting rods are resized on a Sunnen 1699 rod honing machine.
After all machine work is completed, the connecting rods are sent back to be washed.
All flat tappet camshafts are replaced. Roller camshafts are check to see if they are within spec. and replaced as needed. Roller camshafts are polished and recleaned
Fracture/broken rods are replaced.
Connecting rods and caps are cut using a sunnen cap cutter. Connecting rods are resized on a Sunnen 1699 rod honing machine.
After all machine work is completed, the connecting rods are sent back to be washed.
Once the engine is fully assembled, it is preped for shipping. The engine is shrink wraped, taged and bagged. It is then placed in a cargo shipping container and strapped securley for transit. The container is sealed and label for the freight carrier. All engines are shipped using LTL Freight carriers.
FREE
Shipping
