TwinTurbo.NET: Nissan 300ZX forum - Is this a knock?
People Seeking Info
 
   


     
Subject Is this a knock?
     
Posted by Diplomat1 on October 03, 2017 at 1:06 AM
  This message has been viewed 79 times.
     
     
Message Well I think I might have a knocking issue. I got a set of 48p heads which came off a motor that blew the bottom end. I cleaned the head and replaced all the valve stem seals. Put motor together and now it's making this noise. I got the car non running so I don't know is this bottom or top end. I am running 20w50 oil. Car runs perfect it's just this rattle/knock I get on acceleration only when I left off the gas knock stops. The noise usually starts around 2500 and up to around 4-5k. Other than this issue car runs on all 6 and strong. Here a video. Any ideas? Thanks

https://youtu.be/Uss5lzPjsrg

     
Follow Ups  
     
Post a
Followup

You cannot reply to this message because you are not logged in.