Oil foaming |
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smellybeard
Falcone Joined: 15 Oct 2018 Location: Dublin Status: Offline Points: 77 |
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Oh my rusty balls!
Ball valve rusted and stuck. It is an obvious water trap. Anyway, fixed now and I'll tidy up the external breather hose so there's less likelihood of it filling up with water. Given I have the sidecar, I'll run it into a catch tank, racing style.
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Mike H
Senior Member Joined: 21 May 2014 Location: East Anglia Status: Offline Points: 8733 |
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OK sorry, the pre stock air filters versions, 850 I & II (?) Cos of having no air filter housing, there was a separate standalone metal breather collector box. As far as I know only that style box had the "flap valve" in it (a washer and coil spring on a rod - but I'm prepared to be corrected). I only asked because I had a Spada 1, the air filter housing oil collector did not have a"flap valve" or anything like it, there was only the ball valve in the large hose. (Altho there wasn't in mine when I first got it, but that's another story!) |
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"Chicken nuggets don't dance on a Tuesday."
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Chris950s
Senior Member Joined: 03 Nov 2018 Location: Essex Status: Offline Points: 379 |
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Mike, I think your Spada may had been converted as the ball valve came later. As far as I am aware all models before and including the Le Mans II back to the first V7s (not just the Le Mans) had the flap valve in the breather box. Only after the Le Mans II was the breather connected to the air box and the ball valve adopted. That is my understanding of what Ian Falloon says in his Moto Guzzi Story, what I have read in Guzziology, and my own bikes and those of my friends. Knowing Guzzi's way of changing models mid production run, it could be anything though!
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Chris and Karen - Essex
2011 Stelvio NTX, 1974 950S (750S replica nearly rebuilt!), 1966 Triumph T100SS 58 years young this year! |
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Mike H
Senior Member Joined: 21 May 2014 Location: East Anglia Status: Offline Points: 8733 |
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Not according to my Haynes manual, and Motomecca agreed with me. The strange object in the Haynes drawing was eventually identified as the ball valve. The Haynes covered 1976 onward T3, California, LM and Convert. Don't remember seeing any other valve in the air filter collector (but was a long time ago), also no obvious signs of tampering. |
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"Chicken nuggets don't dance on a Tuesday."
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