Hi everbody, I've just uploaded a video in YouTube. It would be nice, if "somebody" takes a look and an ear to the sound. Here's the text: ""coldstart" by 20 degrees celsius outside temperature. rocker arms and shafts are new. the valve tips have only appr. 1 mm material left. the lifters and pushrods are "old", but they are looking good. oil and filter are changed. the rods and the lifters are spinning - I think, that this is normal. if the engine gets warmer, the noise is getting less. even after appr. 3 minutes the oil appears on the top of the rocker arm and goes down to the end to prime the valve tip. less than one: no oil. the oil indicator in the cockpit shows pressure quickly and any time. oil: 20 W 50. any suggestions ? oil pump? valves (guides) ? hydraulic lifters ? pushrods ? a rod knock ? or maybe everything....if you like, you can also e-mail me: sherrick@gmx.de. many thanks, Robert out of Germany."

Thank you friends !valvetrain noise cadillac 1964 429 cui

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Tony, this is also my thought. This combination is not good. After running my engine the first time to operating temperature, I've changed the oil and the (long) filter. I've cranked it again and the oil pressure was even better than before. So, in a few days after running this car for a while, I will change the oil and the filter (this time the shorter one) again. Then, I think, there's nothing left to do for me....thanks again, Robert

Robert 

sounds like oil pressure is working on spec which is always the best news after  engine work  is completed 

hope you enjoy many miles of trouble free driving —on the rebuilt engine as you are off to a very good start having had a good engine fire up and  break in run —after the repairs  were done 

Getting that first start up right has all to do with the engines successful  longevity as parts are seating correctly  ( metal to metal surfaces are polishing themselves ) in that first run up 

nice job 

Enjoy 

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