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1998 5.7 carb noisy engine

zimnucks

Contributing Member
Ive got a 5.7 carb engine wich I put a new crank and bearing in , the engine had 6 hrs from new when it picked up on the crank so I changed that and put it back together . It was running great for 2 hrs and then a tik tik started happening , I thought hyd lifters so I changed them and now the tik tik has gotten worse , Im outta ideas of where to start as Im weary of tearing this motor apart again . Any ideas ?
 
The pushrods are they all the same length? Just a 1/10 of an in or less can cause a tap.Not saying this is your problem but ??? I used to have an old Caddy. it sounded bad, ticking a LOT. I pulled the covers and inspected. It needed 2 rods and 2 rocker arms. The Cad had a lot of miles and the oil passage in the rods got clogged and wore the pieces out. Next take a long dowl smaller the better. Use it as a listening device. One end in your ear the other on different places on the motor. It telegraphs the sound almost as good as a stethescope.
 
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