99 suburban 5.7 LT rebuild

K.petillo

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I just rebuilt the motor in my 1999 Chevy suburban 5.7 LT vin R

Had the best motor shop in Vegas rebuild the heads and do the bore and horn machine work for me. My uncle and I put the motor together. We took our time and used plenty of grease and engine break-in oil on ever inner part. It went together smooth and easy.
It started right up and was missing a little bit. We tried to do the turn a little this way and that way with the distributor. Took it to a shop to have the computer time it. Came down to a bad distributor. Replaced it and it timed out nice and smooth with a instant knocking or rubbing sound. We pinned the noise to the timing cover. Pulled it off and noticed the lip the goes over the oil pan was bent out (how plastic bends, you got me). So we bought a brand new timing cover, put everything back together and the noise is louder.

We used a stethoscope and pinned the noise to the timing cover. Sounds like something slapping the timing cover? I'm lost been on this engine way too long. Please someone give me some good suggestions.
 
anything out of the ordinary with the timing chain and gear set you installed. what brand and number?
 
I haven't done a timing set in a long time. Any chance the gears got put on the shafts backwards?
 
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