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Old 09-24-2002, 09:52 PM
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Join Date: Oct 2001
Location: Wilmington, NC
Posts: 159
300E valve noise at start-up...

did the search...didn't find much...'90 300E, 147,500 mi., very well maintained since new...recently changed to Castrol 20W-50 (I know, not recommended oil) and have noticed valve noise (tapping) at goes away w/in 3-5 seconds (after oil pressure comes up?)...I think I may know the answer before asking, but I've also read that a 3.0L may need valve work around 150K miles...opinions? experience? as always, thanks in advance for your help, Bill
1990 300E - Arctic White / Blue Leather...Eibachs, Bilstein Sport Shocks, 16 X 7.5 8 Hole Wheels

1999 E430 Sport

2000 E320
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Old 09-24-2002, 10:37 PM
J.HIDALGO's Avatar
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Join Date: Jul 1999
Location: Jax, FL
Posts: 1,785
HOw is your oil consumption?

Any other problems with the engine? You may only need seals, whihc is a lot less money than a valve job...
'86 300E
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Old 09-24-2002, 11:00 PM
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Join Date: Dec 2001
Posts: 565
You live in a warm climate; Castrol 20W-50 is indeed recommended for a car of this vintage. You "might" get it to run a little quieter with 10W-40.

I'm sure there will be more opinions to follow. Some may suggest worn hydraulic lifters.
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