Hi brianyoo123,
At least 70 % of grey( blue) smoke are oil consumption due to worn valve seals.
This is not an easy job for DIY and if you do not have the required tools such as torque wrenches, valve spring compressors, you would not be able to perform the job.
Normal procedure is to remove the cylinder head to perform the job.
If you have a compressor available with a special tool to apply regulated pressure to the cylinders via the spark plug holes, then there is no need to remove the cylinder head. However special tools would be required to remove the valve springs and care has to be taken to avaoid the valve collets from dropping into the engine oil passages.
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Sunday, May 2nd, 2010 AT 10:05 AM