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Old 01-07-2013, 08:08 PM
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Radian Radian is offline
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Location: Tucson, AZ
Join Date: Aug 2010
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Mein Auto: '91 535i 5-spd
Originally Posted by David Arabiat
so how do i get the engines guts cleaned ?
First off, if the junk doesn't interfere with oil flow to the rings, bearing journals, and cam followers, then it's just part of owning an older engine.

Secondly, doing that thoroughly would require inspecting the integrity of the lube system by disassembling things.

It might look like hell, but I can guarantee you that simply removing 15 years of surface deposit / varnish from a rocker arm or from the underside of a valve cover won't do anything of significance.

OTOH cleaning and lapping the valves (by taking apart the head) and blueprinting the injectors, for example, would make for a world of difference.
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Last edited by Radian; 01-07-2013 at 08:13 PM.
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