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It's not that hard of a job at all the only pain is that you DO have to do it while it's at operating temp., that sucks here in Phoenix. after you do it 2-3 times youll be able to complete it in a half hour. if your engine isnt running yet I'm not sure what youll need to do to get it to temp but heres what you do when its warm.
Remove valve cover, get you #1 cylinder to top dead center on the compression stroke. turn the harmonic balancer bolt until the mark on your crank pulley lines up with the "0". if the rocker arms on the #1 cylinder aren't loose then take that pulley around 360 degrees til the marks line up again. when the #1 rockers are loose this is #1 TDC. the clearences should be 0.008 for intake and 0.012 for exhaust. Now on #1 TDC adjust both valves on #1, intake on #2, and exhaust on #3. Now rotate the crank pulley 360 degrees again and adjust the others,they'll be #2 exhaust, #3 intake, #4 intake and exhaust. you loosen the locknut with a 12 mm wrench while holding a flathead on the screw with your other hand. loosen the wrench, loosen or tighten the screw, tighten the wrench, then check clearence again til their all correct. then put it all back together. one note, if there's too much clearence they chatter, if there's not enough clearence the exhaust valves don't stay closed long enough to keep cool and they burn up.
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1986 4Runner 247,000 and counting
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