View Single Post
  #5  
Old July 1st, 2016, 11:00 AM
turbobill turbobill is offline
Member
 
Join Date: Feb 2013
Location: northern NY when not flying
Truck: 1968 HM80 with a 478M and a few engines plus a Toro-Flow
Posts: 99
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 100
turbobill is on a distinguished road
Default Re: Head and rockers.

The "rattling" you hear is probably detonation.

Has nothing to do with the valve adjustment. Excessive lugging, fuel octane, or timing are the likely culprits if the engine isn't running to hot.
Reply With Quote