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#1
03-08-2010, 12:24 PM
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cooling system scaling/rust - what to do?
drained all the coolant out of both the radiator and the block. flushed for three days with white vinegar/distilled water mix. bypassed mono valve
during flushing phase. a new radiator will be installed along with new transmission hoses/washers, and new radiator hoses/clamps. upon inspection, the inside of the hoses appear to have rust or scaling. is there anyway to flush out this rust and/or scaling? 
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#2
03-08-2010, 12:31 PM
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They sell flushes. Mb recommends citric acid flush.
__________________
Current Diesels: 1981 240D (73K) 1982 300CD (169k) 1985 190D (169k) 1991 350SD (116k) 1991 350SD (206k) 1991 300D (228k) 2008 ML320 CDI (199k) 1996 Dodge Ram CTD (442k) 1996 Dodge Ram CTD (267k) Past Diesels: 1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)
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#3
03-08-2010, 12:44 PM
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Find the FSM instructions for that citric acid flush... sorta involved... perhaps that specific for a reason.. lots of threads about it...
__________________
1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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