Moaning Sound
#18
Instructor
Thread Starter
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......
#20
Instructor
Thread Starter
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!
#21
Team Owner
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
#22
Chronic Tool Dropper
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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.
#23
Instructor
Thread Starter
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....
#24
Team Owner
did you drip some of the oil onto a black piece of cardboard and look at it in the sun??
#25
Instructor
Thread Starter
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.
#26
Owns the Streets
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Think the trick thing about cardboard is that it absorbs the oil and leaves any particulates on the surface for easier identification.
#27
Team Owner
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
White cardboard is not as good a contrast with shiny specs
#28
Three Wheelin'
Join Date: Dec 2005
Location: In the boatyard installing the mast and engine, we don't need a crane, we harness the mesquito's! Yeah!
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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
I thought this was standard equipment for the automatics - check in the glove box under the owners manual
#30
Instructor
Thread Starter
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.
Thanks for the Harbor Freight info. I'll definitely get that as well since I'll be checking the flex plate often.