John Speake

That sound is your wallett crying - welcome to 928 ownership :-)

vbatla

Excellent info in the FAQ. Now I know what to look for.

vbatla

Ha. My wallet has been cryin for awhile now. Sometimes my 928 reminds me of an ex of mine. I knew that she needed to go but when she was runnin' right, there could be no better......

bigmac

Did she moan?

vbatla

UPDATE: I put the car on stands and I could clearly hear that the sound was coming from the flex plate area. l pulled the exhaust, removed the cover and put a straight edge on the plate. Didn't seem to be much pressure, if any. But it really snapped back into place once I loosened the clamp. I checked to see if the crank had any play. I don't have the tool designed for this but by measuring from a static location to the flywheel I have about 1mm of play. It seems pretty tight. i bolted everything back together and voila, quite & smooth. Sound gone. It also took care of a vibration that occurred at around 4k as well. Mrmerlin, you were right on. Thanks!

Mrmerlin

OK Good you just saved your engine, now pull the dipstick and drip some oil onto a black piece of cardboard, look at the oil in the sun if you see lots of metallic particles i would change the oil and filter ASAP B4 you run the engine again

dr bob

Do an oil change right away, and look for metal in the oil. Carefully cut the filter open, again looking for bearing and block metal on the surface of the filter media. The oil that comes out deserves inspection too. Looking for shiny metal particles that used to be aluminum bearing shells. If there's any evidence, report back, and don't run the car.

vbatla

Drained the oil, checked the dipstick, cut the filter open and inspected the oil itself. The only metallic objects I found were on the oil drain plug. 3 - 5 pin head size silver particles. None on the dipstick or in the oil or filter. Maybe I dodged a big one....

Mrmerlin

did you drip some of the oil onto a black piece of cardboard and look at it in the sun??

vbatla

I didn't have cardboard but I had some black plastic I poured it on and all that I saw in the sun was oil. I took it from the dipstick and from some that that drained out. I also felt through a lot of it to see if I could feel anything.

ew928

Think the trick thing about cardboard is that it absorbs the oil and leaves any particulates on the surface for easier identification.

Mrmerlin

The trick with the black cardboard is that with sunlight in the oil the metallic particles will show up if they are there and you will be able to see them.
White cardboard is not as good a contrast with shiny specs

Sailmed

Harbor freight - 623-5VGA and 5645-4VGA - <$20 for the set of magnetic mount and runout mic. Makes checking the end play easy.
I thought this was standard equipment for the automatics - check in the glove box under the owners manual

ew928

You'd thunk there's enough room on the dash pod for yet another warning light for detecting shaft migration.

vbatla

I still have the oil, I'll find some black cardboard and report back.

Thanks for the Harbor Freight info. I'll definitely get that as well since I'll be checking the flex plate often.