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E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 01-07-2015, 04:54 PM
Gingersr00l Gingersr00l is offline
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Location: Maryland
 
Join Date: Jan 2015
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Mein Auto: 87' 325e E30
87' 325e engine problems

HELP ME!

Cool, now since we have that out of the way, I have bought a 87' 325E from a buddy of mine with about 190k on the clock for only $500 since it sat for 4 years. It would run for a little while and then stutter and have little to no power, then kick back on, changed both fuel pumps and that problem was fixed. Then another problem was that when parked and just idling, I would rev it and when engine is up to temp, it will blow blueish/black smoke and when not up to temp it will blow excessive white clouds.(this is only when it is parked, when driving around at operating temp no smoke blows unless I sit at a stop light and start to move again then it's excessive white clouds again) Not small white vapor clouds. But the white clouds only last for a few min until engine is up to temp. I can drive it around just fine with new spark plugs, but when I let it cool down it fouls out the spark plugs in what it looks to be oil and has misfires when I start it up again from a full cool down. Then either I have to clean off the spark plugs or buy new ones. I have not done a compression test to see if piston rings are good, but I feel like the valve seals could be done for since it sat for so many years and it has high mileage, that would explain this burning oil.

Thanks in advance

Last edited by Gingersr00l; 01-07-2015 at 04:59 PM.
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  #2  
Old 01-08-2015, 08:35 AM
markseven markseven is offline
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Location: John 3:17
 
Join Date: Apr 2004
Posts: 7,504
Mein Auto: BMW M Power
Sounds like a bad head gasket, which is letting coolant (white smoke) and oil (bluish-black smoke) into the combustion chambers. hence the fouled plugs, too.
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  #3  
Old 01-08-2015, 09:03 PM
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downhiller downhiller is offline
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Mein Auto: 2012 hypermotard 796
sounds like a cracked head/block if it mainly does it cooled down or head gasket. either way need to do a compression test dry and wet, and if you have access, a leak down test
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Old 01-08-2015, 10:38 PM
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BMWFatherFigure BMWFatherFigure is offline
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Location: Perth, Western Australia
 
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Mein Auto: E23;E30;E38;E32;E34 +
Dunno about the cracked head but wet, dry and leak down tests are THE way to go. That will show up HG problems. Maybe just rip off the head and get it reconditioned any way? Check the bores at the same time and get answers on other engine wear/condition.
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Old 01-09-2015, 09:38 AM
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hornhospital hornhospital is offline
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Mein Auto: 1995 318is / 1993 325is
Just a general FYI: a cracked block on an M20 is extremely rare. The block is cast iron, and practically bullet-proof. 99.9% of the time, if anything cracks (due to overheating or otherwise), it's the aluminum head.

I'm with Mark on this one. Blown head gasket is almost certainly what the problem is. Very likely that's why it sat for four years.
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Last edited by hornhospital; 01-09-2015 at 09:40 AM.
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2.7, e30, e30 325e, eta, head gasket, smoke, smoke from tale pipe, smoke on start, smoke on start up, valve gasket, valve seal, valve seals


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