BMW 540i Spezifikationen Seite 20

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Originally developed and published here by unknown author: http://members.cox.net/rlacm/IntakeIndex.htm
Recovered and published by BMW-Planet.com May 2012
Valley Pan
- Clean up as much gunk from the area around the valley pan and intake ports as
possible. The intent is to avoid contaminating the remaining coolant which will be
exposed once the valley pan is removed. Of course, it is imperative to keep debris
from entering the intake ports during this operation. A small screwdriver is useful for
loosening the gunk, followed up with a shop vac (don’t hoover up the paper towels
from the intake ports). I used a brush attachment on my shop vac, which did a good
job of getting rid of the dirt which had accumulated on the sides of the heads. If it is
really dirty, a solution of water and laundry detergent may be sprayed everywhere,
followed by toothbrush and hose to rinse it off (obviously you don’t want to get water
in the intake ports - just use low pressure to rinse the mess out the back of the
block.
- Once everything is clean and dry, remove the twenty 10mm bolts (A) attaching the
valley pan to the block. Dork Alert! Note that beneath the black heat shield, the
valley pan can hold a large amount of water (if you used water during the cleanup
process). Don’t allow this water to drain out into the block when removing the pan.
- Gently pry (use small screwdriver as necessary) the valley pan to loosen its seal.
Once loose, work the pan/shield up past the knock sensors (B), and remove the
valley pan.
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