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3rd May 2008
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Biker
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Join Date: Mar 2008
Posts: 15 Sportster/Buell Model: sportster Sportster/Buell Year: 1996
Reputation: 10
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I could use some help on this - Oil cap popping off
Alright I made a post a few days back about my oil cap popping off and oil spewing everywhere. I recieved many replies that there is too much oil in the bike. With that said I know the oil level is good actually it needs oil ( so much has spewed out) I changed the crank case breather filter, easy to do and it was a suggestion I recieved. Still same problem start her up with in 45 secs pressure in the oil tank pushes the cap off and oil comes out. Im new to the Harley deal but it seems to me oil is returning from the motor good ( to good) but possably not going from the oil tank to the motor???
...I am open to any knowledge on the subject
also if it makes a differnece the bike does have a force winder XR intake
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3rd May 2008
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Senior Master Custom Bike Builder
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Join Date: Dec 2007
Location: On The Edge... of Scotland
Posts: 4,576 Sportster/Buell Model: 1203 XLH/Buell Hybrid Sportster/Buell Year: 1988
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Umbrella valves not functioning or blockage in head breather vent lines, or at the worst, oil lines incorrectly routed... 
Nuff said...  |
3rd May 2008
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Bike Builder
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Join Date: Jul 2005
Location: Sheboygan, WI
Posts: 1,873 Sportster/Buell Model: FXR Sportster/Buell Year: 1994
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You don't say if it ever worked fine as long as you've owned it.
The reason I ask is usually problems are caused, they rarely just happen. Did you install the forcewinder? Did it work fine before the intake installation? Or did it just start happening out of the blue with no help from anyone? Was some mechanic in the rockerbox area lately?
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3rd May 2008
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Master Custom Bike Builder
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Join Date: Nov 2004
Location: Mesa, Arizona
Posts: 3,246 Sportster/Buell Model: xlh Sportster/Buell Year: 94
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Only 3 things I can think of that would cause this:
Venting...
Excessive Oil...
or
A sticky/damaged return spring on the anti-siphon ball in you oil filter housing. (not sure if thats what its called) The little rubber ball that prevents oil from draining back into the engine case...
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.....Nemo Me Impune Lacessit
'94 Xlh 883 converted to S&S Hot Set-up 1200 kit, 9.2 to 1 comp, Andrews N6 cams, adjustable P-rods,Super E, Cycle Shack M's w/Gronk Baffle Mod, S&S Heads, Thunder Jet, Sifton Bombsight, SE Ign, Progressive 4800-Rear, White Bros Lowering Kit-Front
:pgrflag:
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3rd May 2008
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Senior Chief Know It All
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Join Date: Jul 2007
Location: In the Sticks and Lovin It.
Posts: 834 Sportster/Buell Model: Sportster XL883 Sportster/Buell Year: 2007 Other Motorcycle Model: Ferguson TO-30 Tractor Other Motorcycle Year: 1953
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Did you change your oil filter? Might be blocked and causing pressure.
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2007 XL883, V&H SSS, Screamin Eagle A/C, PCIII, Chopped Fender, Chopped Cam Cover, Drag bars 6 1/2 Risers.
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3rd May 2008
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Master Mechanic
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Join Date: Feb 2008
Location: NH
Posts: 260 Sportster/Buell Model: Sportster 883C Sportster/Buell Year: 2007
Reputation: 28
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You swapped your air filter and replaced the breather bolts right? I know someone who put normal bolts in there and it caused this exact issue. The breatehr bolts have holes in them, you cannot run a standard bolt.
__________________
zRUNNERz
2009 Dyna Super Glide Custom FXDC Black and Chrome - Purchased Feb 2009
96" (1584CC) and 6 Speed Trans...
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Mods / Changes -
10" Roll back Bar's with wiring run through the bar's (Swap Meet)
Lepera Bare Bones Solo Seat
S & S Air Cleaner with nice slots cut out on it (My Brother)
Lay Dow Plate Mount (eBay)
Vance and Hines Straigt Shots - (Swap Meet)
Stretched Billet Headlight (Swap Meet)
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Short blinker mounts for rear (Swap Meet)
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2007 Sportster 883C White Pearl - Purchased July 2007 and Sold Feb 2009
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3rd May 2008
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Biker
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Join Date: Mar 2008
Posts: 15 Sportster/Buell Model: sportster Sportster/Buell Year: 1996
Reputation: 10
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I just bought the bike from a buddy of mine it had the air filter for some time now i havent done anything to it i put maybe 300 miles on it since i got with out any problem and with out any maint. or anything this problem started happening thats what has me confused
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3rd May 2008
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Master Mechanic
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Join Date: Feb 2008
Location: NH
Posts: 260 Sportster/Buell Model: Sportster 883C Sportster/Buell Year: 2007
Reputation: 28
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Can you take a close up picture of the breather area behind the air filter. My buddy who did this did nto have an issue until he drove for in excess of 2 hours.
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4th May 2008
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Greasemonkey
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Join Date: May 2008
Location: in a frigen trailer park
Posts: 106 Sportster/Buell Model: 1200 XL custom rat Sportster/Buell Year: 1991
Reputation: 51
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ok i'm a bit of a red neck,but did you check it warm or cold,the check valve in mine is bad soif you look in there when its cold its realy empty looking,fire it up and it pushes all the oil out of the case back up to the bag, faster than its sucking it out so about 45 seconds later,POP,PUKE,clean up the mess,pumped out a ton of oil and leveled it off when its warm and no problems,so you might still have too much oil in there,maybe
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