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#1
12-20-2004, 07:19 AM
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air pump/smog pump
Does anyone have a parts # breakdown of the air pump for a 88 560sl
Does anyone sell rebuid parts for these smog pumps? Mine looks like it was pumping sumps !!!
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[B]Mike Y. 00 sl500 sport 88 560 sl (sold) 
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#2
12-20-2004, 08:29 AM
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No parts available from MB in the aftermarket.
IF there is water in the pump then the check valve on the exhaust must be letting water(exhaust condensation) into the system. The pump is ONLY a warm-up device for the catalyst. Helps to "fire-up" the catalyst quicker!
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#3
12-20-2004, 09:45 AM
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took it apart the front shaft is frozen
Do you have a part # for the check valve Thanks for the help
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[B]Mike Y. 00 sl500 sport 88 560 sl (sold)
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#4
12-20-2004, 05:26 PM
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Reno '93 300E 4Matic '98 Nissan Altima '00 Yamaha Road Star Silverado
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#5
12-20-2004, 09:37 PM
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Thanks
I am going to try cleaning it up first The meat head that owned it before said it always makes that noise at first start up Well I felt that MB doesn't build stuff that squeals by design so I pulled it apart As DOC said It only works for start up so I thing it will rotate atleast I cleaned everything and replaced the front frozen bearing (not the idler one) what a mess to do if only people would react when they hear something it would be alot easier
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[B]Mike Y. 00 sl500 sport 88 560 sl (sold)
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