To find the valve clearance for your 1991 1.5 Mitsubishi Mirage engine, I recommend the following:
1. Consult your owner's manual: The most accurate and reliable source for this information is your vehicle's owner's manual. It should specify the recommended valve clearance for your engine.
2. Check the Mitsubishi service manual: You can find a detailed service manual for your specific model year and engine online or at a local auto parts store. The service manual will provide all the technical information you need, including valve clearances.
3. Contact a Mitsubishi dealer or mechanic: They can provide you with the correct valve clearance specifications for your vehicle.
Remember: Improper valve clearance can lead to engine damage, so it's crucial to use the correct specifications.