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Buell Motorcycle Forum » Old School Buell » Archives OSB 001 » Archive through September 04, 2007 » Pressure buildup in oil tank « Previous Next »

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Crazydiamond
Posted on Tuesday, August 28, 2007 - 06:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

On my 01 S3T i've been having enough pressure build up in my oil tank to blow the cap off if I ride hard. Mods are American Sport Bike intake, V/H pipe and race ecm. I keep the level midway up the dipstick or slightly lower. Why all the pressure?
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Buellgekk
Posted on Tuesday, August 28, 2007 - 07:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Check if your breathers aren't blocked.
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Natexlh1000
Posted on Tuesday, August 28, 2007 - 08:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Make sure to check the oil AFTER a ride.

What kind of breather setup you have?
Could it be clogged?
Mud dauber wasps work fast.
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Mmmi_grad
Posted on Tuesday, August 28, 2007 - 08:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Could very well have a crushed oil tank vent hose though.
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Wile_ecoyote
Posted on Wednesday, August 29, 2007 - 12:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Listen to Nate, AFTER you ride.
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Cyclonemick
Posted on Wednesday, August 29, 2007 - 01:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

TO MUCH OIL IN TANK!!!
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Bookyoh
Posted on Friday, August 31, 2007 - 07:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Crazy:

My '01 S3T did that too. I bought it used in 2005 from a Honda dealer. They way overfilled the tank. I dumped their oil and filter and refilled with the correct amount but it continued to blow off the cap. I suspect the tank vent tube got plugged or severely restricted with oil from their overfilling. I pulled the vent line off the tank and blew it out with an air hose. If you do this, BLOW GENTLY WITH THE AIR HOSE. I got a bit too much of a burst of air and it made quite an oil mess. After that it has been absolutely fine. On my S3T and M2 I always run the oil level near the top mark on the dip stick and have no cap blow off problems.

Mark
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