RATTTLING NOISE ON LEFT VALVE COVER AREA OVER 2000 RPM

RUBDIA6566

MEMBER
1999 LEXUS ES 300
3.0L
6 CYL
FWD
58,000 MILES

THE CAR HAS 58000 MI. IT MAKES A RATTLING NOISE ON LEFT VALVE COVER AREA SPECIALLY ON THE REAR AREA WHEN ENGINE GO OVER 2000 RPM. OIL PRESSURE IS OK. I REMOVED THE EXHAUST CAM SHAFT VALVE CLEARENCE WAS OK. ALL COMPONENTS LOOK OK. I DISASABLED THE FLOATTING GEAR AN CHECK THE SPRING WASHER LOOKS OK. TO ME. I BOUGHT 2 NEW SPRING WATCHERS THAT I'M GOING TO INSTALL THEY LOOK A LITTLE BIT CLOUSER IN GAP THAN THE USED ONE I REMOVED. I HAVE NOT PUT THE ENGINE TOGETHER UNTIL IHAVE AN OPINION FROM YOU GUYS. TO ME EVERYTHING LOOKS NORMAL ON THAT AREA CAN YOU PLEASE GIVE ME AN OPINION IF I'M ON THE RIGHT TRACK OR WHAT ESLSE COULD BE? TKS.

1 Reply

HMAC300

MECHANIC
48,601 POSTS

In pic look at camshaft where arrow is pointing and if you see score markds or if you can feel wear between edge of cam lobe and like 1/16" off that then that may be where your noise is. It cold also be alifter or loose clearance. It cold also be a bearing bu you woud have to pull cam off and it's not worth it to do that.

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