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captaindana View Drop Down
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Joined: 14 Sep 2009
Location: Fort Plain, NY
Points: 2559 		Post Options Post Options   Thanks (0) Thanks(0)   Quote captaindana Quote  Post ReplyReply Direct Link To This Post Topic: XT experts
    Posted: 25 Mar 2012 at 4:39pm
I need your input. XT runs and sounds better daily. I have always noticed a small pool of bubbly foam where the fuel pump meets the housing which it is bolted to, at about the 2 oclock position. I have wiped it clean several times but it always seems to be there. It can be seen in the image below. I assume engine pressure from leakage around rings coming out around where pump meets case and back when I was bleeding fuel I know fuel was splattered all over that place. Anything unusual? Thanks! Dana
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D-17_Dave View Drop Down
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Joined: 11 Sep 2009
Location: Mocksville NC
Points: 990 		Post Options Post Options   Thanks (0) Thanks(0)   Quote D-17_Dave Quote  Post ReplyReply Direct Link To This Post Posted: 25 Mar 2012 at 6:50pm
I'd think with a decent gasket that there shouldn't be any leaking around the flange. There shouldn't be any real pressure inside the crank case either. If your crank case vent pipe is open and your still pushing enough air volumn to build any measureable pressure you'll be looking for a ring job soon. I'd install a manometer and measure the crank case pressure.
Yea, I can fix that.....
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captaindana View Drop Down
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Joined: 14 Sep 2009
Location: Fort Plain, NY
Points: 2559 		Post Options Post Options   Thanks (0) Thanks(0)   Quote captaindana Quote  Post ReplyReply Direct Link To This Post Posted: 25 Mar 2012 at 7:07pm
Is there supposed to be a gasket between pump and case???
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D-17_Dave View Drop Down
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Joined: 11 Sep 2009
Location: Mocksville NC
Points: 990 		Post Options Post Options   Thanks (0) Thanks(0)   Quote D-17_Dave Quote  Post ReplyReply Direct Link To This Post Posted: 25 Mar 2012 at 7:15pm
Yep
O-ring on pump facing or something. I can't recall as it's been awhile since I had a pump off but the same style Rossa Master is used on tons of stuff. Has to have something in it or it's open to the crank case and will certainly show an oil leak at some point.

Edited by D-17_Dave - 25 Mar 2012 at 7:18pm
Yea, I can fix that.....
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captaindana View Drop Down
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Joined: 14 Sep 2009
Location: Fort Plain, NY
Points: 2559 		Post Options Post Options   Thanks (0) Thanks(0)   Quote captaindana Quote  Post ReplyReply Direct Link To This Post Posted: 25 Mar 2012 at 7:53pm
Oh yeah I do remember the oring when we put new pump on. Thanks.
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stray View Drop Down
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Joined: 16 Aug 2011
Location: Tipton, Missour
Points: 323 		Post Options Post Options   Thanks (0) Thanks(0)   Quote stray Quote  Post ReplyReply Direct Link To This Post Posted: 25 Mar 2012 at 9:12pm
Dana did you pull the vent tube off the valve cover and make sure that some thing didn't plug it up. I know you said that you XT had set for several years. I don't know about NY, but here in MO the mud dobbers will plug up any hole they can find.
1969 190XT series 3
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