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E63 / E64 6 Series (2004 - 2010)
The E63/E64 BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

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Old 03-11-2014, 02:46 PM
dabigdawg dabigdawg is offline
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Location: Queens, NY
Join Date: Jan 2014
Posts: 20
Mein Auto: 06-650I, 97-740IL
Timing Chain Removal

does any one know, if the entire head has to come off the motor in order to remove/replace timing Chain on a 2006 650I. My chain has apparently stretched, but looks as if I'm going to have to remove the head to get past these guid rails/bars.

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Old 03-11-2014, 07:46 PM
HerbP HerbP is offline
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Location: Georgia
Join Date: Jul 2009
Posts: 3,111
Mein Auto: 2005 645Ci & 2007 750Li
It takes a special tool to install the timing chain. The front covers will have to be removed. Contact Keif on the 7 series forum, to see if he can help you. I think I remember him doing this job, & he might have the tool. It might possibly be a bad guide, or tension adjuster. This should help.
Attached Files
File Type: pdf RA Replacing both timing chains (N62_N62TU).pdf (60.0 KB, 60 views)
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Old 03-12-2014, 09:59 PM
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amennrahh amennrahh is offline
Location: OCONUS
Join Date: Mar 2012
Posts: 246
Mein Auto: 2005 BMW 645ci
I just finished up a total rebuild on my 645. The heads will need to come off in order to properly remove the lower timing cover. Also, replacing the timing chains will require the removal of the oil pan. Make sure that you check your valve to piston clearances, it's very uncommon for the timing chain to stretch without major component failure.
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