Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1987 Toyota 4Runner SR5, 22-RTEFACTORY OEM SERVICE PROCEDURE
Land Cruiser
- Warm up engine and check ignition timing. Timing should be 7 degrees BTDC. Disconnect vacuum hose between HAC valve and distributor at HAC valve side. Plug hose end. Check that timing mark on flywheel advances to 6 degrees.
- Disconnect vacuum hose from check valve at Black side and plug hose end. Check that ignition timing remains stationary for more than one minute. If timing changes, replace check valve. Stop engine and reconnect hoses to proper location.
- Disconnect 3 hoses on top of HAC valve. Blow air into each hose and verify that air flows into carburetor. Reconnect hoses to proper locations.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.