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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 87swb on November 29, 2011, 07:35:16 pm
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hey all, i know its been a long time since i posted anything. i 've been having a ticking problem lately and i adjusted my valves to 1/2 turn but still heard it, so i went 1 full turn and now i don't think i can hear it or it's a lot quiter. i've done heard 1/4, 1/2, 3/4 and1 full turn. is 1 turn too much? i also noticed a couple of rockers weren't oiling. what can i do about this? this is on my 87 305 TBI with prolly 120-130 thousand miles on it. thanks
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Did you check your oil level? What's your oil pressure? How are you adjusting them? Are you saying zero lash from the base circle of the cam + 1/2 turn?
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the oil level is at the full mark. today with the motor warmed up, the truck in park, the pressure will hang around 30 maybe a lil below it. i adjust with the motor warmed up, loosen off the rocker nut till it clacks, then tighten till it stops, then from there i went 1 full turn in 1/4 increments.
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i guess i'll just go on a hunch and say its alright then...
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I always thought about 3/4 should be sufficient.