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Engine startup & Break-in procedure

Congratulations! You have purchased the finest, most reliable remanufactured engine on the market, engineered and built to provide you with miles of trouble-free motoring.

What comes next is in your hands – ignition! Please follow our guidelines in this critical step of starting your engine and takingit to operational level. Doing so will help minimize headaches, heartaches,and financial loss. How you prep, start, adjust,and driveand perform maintenance will determine largely the smoothness, efficiency, power and longevity ofyour new S&J engine. Read our recommendations thoroughly before proceeding.

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Pre-flight Inspection
Intake and exhaust manifolds

We recommend strongly to use all new peripherals components, using new fasteners and gaskets per OEM manufacturers recommendation. Make certain that the intake manifold is in place: new gaskets and fasteners secured exactly according to your engine’s specific tightening order and torque readings. Same with the exhaust manifolds (or headers). Some engines (i.e.,certain Mopar engines) require a new, OEM intake manifold: failing to comply to this requirement can void your warranty.

Never attempt to start the engine without exhaust manifolds in proper place!

Drive Belts

Use only new drive belts for your engine. This includes water pump, fan, air conditioning, and any ancillary items. Verify that all are properly installed, aligned, and tensioned.

Engine Cooling System

Ensure that the engine cooling system is fully functional and is filled with the prescribed amount of coolant mixture. We recommend strongly new radiator, water pump and hoses.

As your engine is being started for the first time leave the radiator cap off or use a vented cap, as there will likely be trapped air. We recommend filling the cooling system several hours before startup to allow some of the air to travel to the surface. During the initial startup, air will likely be exiting the cooling passages. Watch for this and the engine temperature readings that may fluctuate during the process.

Ignition System

Use only new coil packs, injectors, sparkplugs, sparkplug wires, distributors, etc. for the engine ignition system. Ensure that all components are matched to your engine type and application before starting.

Engine Oil

Use the oil supplied with your engine. It is designed specifically for the break-in phase. Use only the finest oil filter. Your new engine will be seatingduring the initial break-in phase, and residual machining material will be entering the oil system. Oil filter choice and performance is essential. When installing the oil filter, fill with oil at least halfway to help prevent starvation and engine metal-to-metal contact of internal moving parts.

Engine Priming

It is vital to prime your engine with oil before starting, as the engine is “dry.” Internal surfaces and oil galleys require an adequate amount of lubricant before ignition. The oil pump and oil galleys (passageways) must be filled and pressurized to prevent oil starvation and metal-to-metal contact, a primary source of engine damage and failure.

Ignition Timing

Set initial timing for first ignition as per factory recommendations. Given the vast variety of engine configurations and internals, determine your preset by referring to OEM specifications and recommendations.

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Get Your Motor Running
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Head Out On the Highway
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Post-500 Miles

Thank you for choosing S&J Engines, the most trusted source for remanufactured engines. Happy motoring!

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