Engine noise

patrickt · #1 (**permalink**) 07-01-2011, 11:48 AM

Quote:

Originally Posted by Cobradad

Patrick, you won't believe it, but I just took the day off to attend to it. Popped the driver side valve cover. As I was pulling it off I heard the same tinny noise when the engine was running. When I removed the cover a piece of sheetmetal had detached under the valve cover. It looks like it is some kind of baffle that was spot welded to the inside of the cover. It was lying right by valves 6 & 7 which is where the niose was. I would think it is supposed to redirect oil spray back onto the rockers. Don't know if I need to replace the cover or if I can get it tacked back on. I'll see if I can figure out how to upload some photos of the valve cover and the metal piece. While I'm in there, I'm still going to check the lash, but this explains why the driver side was noisy and not the other side. Also, valves 5 & 6 were noisier than 1,2,3 & 4, but not as bad as 6 & 7. The metal piece was concentrated over 6 & 7, but still impacted 5 & 8.
Bob

Man, what a GREAT 4th of July present. That's essentially a "nothing" fix. Hurray.

Cobradad · #2 (**permalink**) 07-01-2011, 12:17 PM

Yea, made my day. Have a great 4th.

patrickt · #3 (**permalink**) 07-01-2011, 12:18 PM

Quote:

Originally Posted by Cobradad

Yea, made my day.

... and Bill's too. We were all set to rag on him had it been anything serious.

Jim Holden · #4 (**permalink**) 07-01-2011, 01:16 PM

Depending on the type of aftermarket valve train you may have, clearances with the valve cover can be tight. The internal baffles on original style valve covers often need to be clearanced...

Jim

Cobradad · #5 (**permalink**) 07-05-2011, 01:09 PM

Just to let everyone know the happy ending to the saga. There WAS a baffle riveted to the upper part of the valve cover, cast cover, very tall with deep fins and 427 cobra on top. The rivets had fluted shafts and the rivets fell out. Loctite and machine screws now hold the baffle in place. I pulled two rivets out of pools of oil on the top of the cylinder heads. Either the other two fell out long ago, or they now reside in the oil pan. Time to change the oil again to see what comes out. Cars is running great, valve lash is good. Glad to know Bill is safe from you guys. He was a good guy to deal with when buying his car.