Hey everyone. I have a 1985 Toyota Celica/Supra with the 5M-GE engine. It uses hla's and ive been getting a horible ticking sound, reduced power that sometimes feels like it kicks in under load but cant quite sustain it. It sounds exactly like a cracked ex. manifold would. With a stethescope, i found that the valve covers were the source, the intake side being worse. I pulled the ex side off with the engine just shut off. I was able to make them click by pressing on 4 out of 6. But later when the engine cooled, i could only barely make one click. Another thing, when i start the engine, it gives that very distinct sound of an egine with 0 compression. It will do this for maybe a second or two and the engine starts.
Sooooo...how do they work? Whats the ins and outs? I know the oil pressure regulator feeds oils to them that pushes them up in the bore to create a constant zero valve lash, but how does oil cycle around to the inside. Also, how do i inspect them? Tons of articles on bleeding, but theres so much more going on. Thanks for all your help in advance.
Sooooo...how do they work? Whats the ins and outs? I know the oil pressure regulator feeds oils to them that pushes them up in the bore to create a constant zero valve lash, but how does oil cycle around to the inside. Also, how do i inspect them? Tons of articles on bleeding, but theres so much more going on. Thanks for all your help in advance.
