After getting the motor from the donor (the 1994 wrangler with the 4.0 liter motor), i started to disconnect the coolant and radiator hoses and removed the radiator. i also took the washer and coolant bottles out aswell as disconnected the power steering hoses. Then i disconnected the 4.2 wiring harness from my jeep. I decided to keep the harness connected to the motor so it would be all one piece.
After everything was unplugged, i unbolted the motor from the bellhousing, unbolted the motor mounts, and took the motor out. The 4.0 motor bolts right up to the motor mounts that the 4.2 used, so there is no cutting and welding required. I decided to keep the internal slave cylinder because the clutch master cylinder did not bolt up to the firewall. The 4.2 bellhousing also has the hole for the crank position sensor, so you can use the original bellhousing. It was very easy to put the 4.0 motor in. The power steering reservoir on the 4.0 motor just bolts up to the flange on the radiator. There is one hole already there but you can drill another if you want to.
In the next post i will talk about wiring up the motor.
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