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Pressure behind oil dipstick

Discussion in 'Stelvio Chat & Tech' started by spacecamell99, Aug 2, 2018.

  1. spacecamell99

    spacecamell99 Just got it firing!

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    Hello!

    New to the forum and fairly new to the world of Guzzi. I have a question for the masses that I hope is either answered already ( I couldn't find it ) or is a simple fix. I have a 2015 Stelvio and I love it. About 4k miles on it and recently it has started to weep oil from around the dipstick. I've had a few minor oil leaks up to this point and have had them serviced, but this time after riding for about 20 minutes and noticing the oil, I parked and pulled out the dipstick. Luckily I was wearing gloves because there was a decent amount of pressure behind the dip stick and a mist of oil spurt out. I know this can't be normal, but any suggestions as to the cause? I've checked my oil level, and it is between the min and max mark. The bike sat for about a year as I left the country and I'm really hoping this isn't a blow-by or piston ring issue. Thoughts?
     
  2. Stevie

    Stevie Cruisin' Guzzisti

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    Sounds like your crankcase isn't venting properly. There is a vent hose running down the right front corner of the engine. It connects to the breather box that's right behind the steering head. Hoses from the back of each head run forward, underneath the fuel tank and connect to the breather box. You might have some blockage in that down hose.
     
  3. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

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  4. john zibell

    john zibell Moderator Staff Member GT di Razza Pura

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    What the others have said. Also note if you put what the manual says for oil capacity, you have over filled the engine. These bikes tend to do better with 250 to 450 cc less in the crankcase. You will see several threads about oil in the airbox. Guzzi even put a drain hose from the airbox with a plug at the bottom.
     
  5. spacecamell99

    spacecamell99 Just got it firing!

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    Thank you! I'll take a look at both and report back. Greatly appreciate the help.
     

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