top end rattle
 

sorry if I posted this in the wrong section earlier /////


Long story short .... recent routine maintenance uncovered antifreeze in the oil - not in a large quantity but it was apparent. Engine was running great, no smoke and no weird noises. Today....New head gasket and inner seal in the water pump installed, engine buttoned up and fresh 0w40 oil and filter installed. Now I have a definite rattle on the top end and I'm thinking maybe I missed a torque on a rocker .... take a listen and give me your thoughts .. thanx !
https://www.youtube.com/watch?v=7KH2...l=HaveaNiceday

What kind of bike are we talking about here?

Im sorry guys ... 2004 Polaris 700 Sportsman late build......

I'm not familiar with those bikes but in my opinion it sounds like the lifters/valves aren't adjusted properly. Were they adjusted while at "top dead center"?

I removed the rockers and lifters to replace the head gasket... didnt turn the engine over ... it sits and idles great - rev it up and it doest spit or sputter or backfire - just the rattle ... Im afraid the damn antifreeze did some harm... Sometimes it almost sounds like chain slap.