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5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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Old 01-30-2010, 05:17 PM   #1 (permalink)
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87 528e oil in air intake boot and manifold. help please

i have a 1987 528e and i noticed a lot of oil in the intake mainforld and rubber boot conneting to he filter box. where could all this oil be comming from? is it hurting my engine? i replaced the one hose that comes out of the rubber boot because it was cracked but i still have a good bit of oil there. any suggestions?
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Old 01-31-2010, 02:30 PM   #2 (permalink)
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87 528e

this same 87 528e has been having battery problems as well. i replaced the alternator and battery as they were both shot (yesterday). this morning i go out to start the car and nothing. completely dead, new battery. anyone know any causes for that? i have 2 5 series this 87 528e and a 2002 528i. both with battery dieing problems. this is really getting me frustrated!. any comments would help at this point.
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Old 01-31-2010, 03:07 PM   #3 (permalink)
OMFG another one!?
 
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If the oil in the intake is coming from the cylinder head, that could be a big issue. About the batteries, there must be a circuit or relay stuck on. Has either engine bay had any re wiring?
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Old 02-01-2010, 12:09 PM   #4 (permalink)
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no rewiring in either car. i hope the oil isnt coming from the cylinders is has 180k on it and runs really rough. i think the cap n rotor needs replaced as well. i hear clicking comming from there. dont drive the car much as i have a 2002 5 series that i like a lot more. is a compression test gona tell me if the cylinders are bad?
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Old 02-01-2010, 12:27 PM   #5 (permalink)
OMFG another one!?
 
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Yeah, it sure would.
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Old 02-01-2010, 08:28 PM   #6 (permalink)
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thanx whiteshark. ok cool i have a compression test kit. i will perform the test. if they are bad is that a head gasket that will need replaced or a whole new head n pistons? i have learned a lot about cars the past few years but im still not too good with the inside of the eingine yet.
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Old 02-01-2010, 08:39 PM   #7 (permalink)
OMFG another one!?
 
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If it's a blow by issue, piston rings may be among the issues.
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Old 02-03-2010, 10:27 PM   #8 (permalink)
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Yeah and if its blowing by that bad you could be dealing with scarring on the cylinder walls and possibly shavings in your head and bottom end around the crank
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