anyone have ideas what this could be?
it was making this sound prior to a serious service
new below
head gasket and sparkplug seals
super charger pulley (16% reduction) seals/oils/ cooler
some coolant hoses, water pump/seals and thermostat
oil pump seals
timing chain /rails/ chain tensioner and top chain sprocket
drive pulley and idler pulley
belt tensioner and belt (060535)
engine mount