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#1
03-24-2008, 07:33 PM
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M103.. may be a really dumb question....
On my 190E / M103 air filter housing there is an un-used hole near the center with a rubber grommet in it. Is something supposed to go there?, I've looked at several other 2.6's and none seem to have anything there.
I put a piece of duct tape over it as it is a straight shot from that hole into the intake (inside the filter perimeter) and the engine ran "differently" , so I took the tape off (engine seemed to run better) and it seems that there is just a little bit of pressure blowing out the hole. Is it supposed to "balance" the intake airflow, or something like that? I could not find any reference on the CD or in the Haynes manual. Thanks in advance.
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1993 190E 2.6 135k 1989 Ford Thunderbird SC 5 Spd 79K 
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#5
03-24-2008, 09:32 PM
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Quote:
__________________
Jeff Pierce Current Vehicles: '92 Mercedes 190E/2.3 (247K miles/my daily driver) '93 Volvo 940 Turbo Wagon (263K miles/a family truckster with spunk) '99 Kawasaki Concours Gravely 8120 Previous Vehicles: '85 Jeep CJ-7 w/ Fisher plow (226K miles)'93 Volvo 940 Turbo Wagon '53 Willys-Overland Pickup '85 Honda 750F Interceptor '93 Nissan Quest '89 Toyota Camry Wagon '89 Dodge Raider '81 Honda CB 750F Super Sport '88 Toyota Celica '95 Toyota Tacoma '74 Honda CB 550F
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#6
03-24-2008, 10:17 PM
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It was very slight pressure, it felt like a very, very weak human pulse. I would rather see a tiny bit of pressure, than un-filtered air being sucked in. The car runs great, nice even idle and smooth power up to 6K rpm. It seemed to miss, slightly with the tape on it.
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1993 190E 2.6 135k 1989 Ford Thunderbird SC 5 Spd 79K
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#7
03-25-2008, 07:03 AM
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Take the whole air cleaner assembly off, and you'll be able to see how it seals. If it's sealed properly, then you're all set. If it's not sealed properly, your intake is ingesting unfiltered air.
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Jeff Pierce Current Vehicles: '92 Mercedes 190E/2.3 (247K miles/my daily driver) '93 Volvo 940 Turbo Wagon (263K miles/a family truckster with spunk) '99 Kawasaki Concours Gravely 8120 Previous Vehicles: '85 Jeep CJ-7 w/ Fisher plow (226K miles)'93 Volvo 940 Turbo Wagon '53 Willys-Overland Pickup '85 Honda 750F Interceptor '93 Nissan Quest '89 Toyota Camry Wagon '89 Dodge Raider '81 Honda CB 750F Super Sport '88 Toyota Celica '95 Toyota Tacoma '74 Honda CB 550F
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#8
03-25-2008, 11:01 AM
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Quote:
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" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century  OBK #55 1998 Lincoln Continental - Sold Max 1984 300TD 285,000 miles - Sold The Dee8gonator 1987 560SEC 196,000 miles - Sold Orgasmatron - 2006 CLS500 90,000 miles 2002 C320 Wagon 122,000 miles 2016 AMG GTS 12,000 miles
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#9
03-25-2008, 11:17 AM
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Quote:
If you do a search you will find tons of info.
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2012 E350 2006 Callaway SC560
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#10
03-25-2008, 11:20 AM
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Okay, I've always heard that referred to as the "air/fuel ratio adjustment screw," that's all. Thanks.
__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century OBK #55 1998 Lincoln Continental - Sold Max 1984 300TD 285,000 miles - Sold The Dee8gonator 1987 560SEC 196,000 miles - Sold Orgasmatron - 2006 CLS500 90,000 miles 2002 C320 Wagon 122,000 miles 2016 AMG GTS 12,000 miles
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