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 Post subject: Another oil leak
PostPosted: Thu Nov 08, 2012 12:28 am 
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Joined: Sun Oct 05, 2008 1:32 am
Posts: 73
Location: Georgia, USA
model: 750 Sport
year: 1990
Noticed the other day that my 750 Sport had a spot of oil under it. After a thorough cleaning the oil appeared to be coming from the oil filter. Got a new filter and changer the oil in the bike. Further testing reveals that the bike is still leaking. I am going to put a pressure gauge on it and see what the oil pressure looks like. any other suggestions. (I did notice that duc in the bay had what appeared to be a similar problem on his bikes).


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 Post subject: Re: Another oil leak
PostPosted: Thu Nov 08, 2012 8:46 am 
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paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
Posts: 5228
Location: southern Germany
model: 750 Paso
year: 1987
Did you verify the oil is not coming from the oil level window ?

G.


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 Post subject: Re: Another oil leak
PostPosted: Thu Nov 08, 2012 12:58 pm 
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Joined: Thu Nov 29, 2007 2:38 am
Posts: 281
Location: UK
model: 907 I.E.
year: 1990
If you reploaced the oil firlte, most likely, that is the culprit.

Sometoimes the gaskets are slightly defective or simply it wasent fitted correctly; the gasket has to be oiled always before fitting the filter to allow it to be "squeezed" correctly when tightening (by hand).


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 Post subject: Re: Another oil leak
PostPosted: Thu Nov 08, 2012 9:11 pm 
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Joined: Sun Oct 05, 2008 1:32 am
Posts: 73
Location: Georgia, USA
model: 750 Sport
year: 1990
No, I replaced the filter in an attempt to solver the problem. After noticing the leak I gave the engine a thorough cleaning. After the cleaning, the first place oil appeared was on the bottom of the filter. I then changed the oil and filter. I checked the oil sight glass. It does not appear to be the culprit. Am going to clean again and recheck. Am also going to attempt to check the oil pressure.


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 Post subject: Re: Another oil leak
PostPosted: Thu Nov 08, 2012 9:47 pm 
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Joined: Tue Jan 17, 2006 12:00 am
Posts: 325
Location: Lower Hutt, New Zealand
model: 750 Paso
year: 1986
Hi,

Take your belt covers off and check for oil inside. The pulley at the bottom of the V has a seal behind it which is prone to leaking. The oil runs down and ends up at the oil filter. Did the same as you, changed the filter, tightened the filter, changed the filter etc. With the Paso motor being black it was difficult to trace the oil path. At one stage I though it might be from the oil cooler hose connections, so removed them and remounted, but didn't help. In the end removing the belt covers was conclusive, there was quite a bit of oil coating the inside of the covers and on the belts. Replacing the seal fixed it.

Cheers,

Fraser.

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750 Paso
1980 Moto Morini 500 Sport
1979 Moto Guzzi V1000 Convert


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 Post subject: Re: Another oil leak
PostPosted: Fri Nov 09, 2012 1:29 am 
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Joined: Sun Oct 05, 2008 1:32 am
Posts: 73
Location: Georgia, USA
model: 750 Sport
year: 1990
Thanks, I had not thought of that. Will pull the covers tomorrow.


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 Post subject: Re: Another oil leak
PostPosted: Fri Nov 09, 2012 7:18 am 
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paso grand pooh-bah
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Joined: Wed Dec 05, 2007 12:35 am
Posts: 1632
Location: Newzealand
model: 906 Paso
year: 1990
Could be faulty oil :D

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I wish I was young again............Id be heaps smarter than last time


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