How to replace your coolant pipe, valve covers, timing gaskets and more
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12-16-2009, 09:55 PM
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Location: Buckeye Country (Cincy)
Join Date: Sep 2009
Mein Auto: 2002 745i 116k
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Replacing Driver Side Slide Rails for Timing Chains
--stayed tuned for passenger side, still deep in it.....
When replacing the guide Rails, I noticed BMW offers a kit for this with different part numbers than the originals. This means the product was improved due to issues with the original design guys.....
The new parts are longer and made of more durable metal and material.
Replacing the slides on the Driver wasn't to bad. However BMW has no information on this from what i could find so i went in blind.
Use nail polish to mark your chains to the exact gear notch.
Use zipties to shore put tension on the chain.
Use Clamps and any clamps you have to keep your chains in their original positions.
Loosing the Chain Tensioner Bolt
I replaced the lower slide 1st then the upper slide rail.
Just one or 2 bolts holding each side.
You have to slide the out carefully at the Cylinder Head doesn't give you much room to manipulate the pieces
Both upper and lower slider rails were broken on the tips and the plastic was brittle.
I found more evidence of wear the chain had been hitting the block.
Sliding the new ones in required careful manipulation of consideration of the cylinder head, head gasket and chain.
Last replace the chain tensioner at the top. It has 2 bolts. Lift up the oil spray slightly to removel
Once in tighten your bolts, and chain tensioner.
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