Author Topic: anti syphon valve  (Read 2634 times)

Offline kiwipom

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Re: anti syphon valve
« Reply #45 on: 02.04. 2017 23:09 »
Hi guys, not meaning to `Annoy` Dutch, I will continue the thread. Thinking on this subject. If the feed to the rockers were to be sourced from elsewhere and blocking off the oil tank breather, would an equal in and out pressure be created thus creating a pressurized oil system, experts opinion needed as this is only a bored persons thought, cheers   
A10.G.Flash(cafe racer)Honda 250 vtr. Yamaha Virago XV920.

War! what is it good for?Absolutely nothing, Edwin Star.
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Offline worntorn

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Re: anti syphon valve
« Reply #46 on: 03.04. 2017 04:11 »
This was my solution for wet sumping. This bike had a new oil pump in an all new engine  but liked to wetsump in about a week. Fortunately the SR takes about 2 or 3 months to wet sump, so it won't need an antisump valve.
With this one the ignition key is needed to shut the oil off. Once off, the key is captive in the valve until flow is turned on again. No wires or switches to fail. It works.
Glen

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Offline Tomcat

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Re: anti syphon valve
« Reply #47 on: 03.04. 2017 08:39 »
That's a good setup WT.  *smile*
 I know this is a BSA forum but WE ARE gunna need more piccs of that Vincent
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Offline Zander

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Re: anti syphon valve
« Reply #48 on: 03.04. 2017 10:27 »
And to think, that in the 50's we just used to buy a bike, put petrol and oil in and ride it, with the occasional necessary odd job carried out as and when! Ignorance is (was) bliss *eek*
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Online Greybeard

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Re: anti syphon valve
« Reply #49 on: 03.04. 2017 12:37 »
...I know this is a BSA forum but WE ARE gunna need more piccs of that Vincent
Just have a wander through his PhotoBucket gallery.

Offline kiwipom

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Re: anti syphon valve
« Reply #50 on: 03.04. 2017 23:23 »
yes Greybeard very impressive work he should be giving us advice, cheers
A10.G.Flash(cafe racer)Honda 250 vtr. Yamaha Virago XV920.

War! what is it good for?Absolutely nothing, Edwin Star.
NewZealand

Offline Black Sheep

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Re: anti syphon valve
« Reply #51 on: 05.04. 2017 22:08 »
Velocettes have an anti-sumping valve as standard and they still wet sump - perhaps not as much as they might do without it. So if your Velo has been standing a while, you still have to drain the crankcases or you will never start it. My assorted BSAs all wet sump to a degree. Can't say it troubles me.
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Online muskrat

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Re: anti syphon valve
« Reply #52 on: 06.04. 2017 11:13 »
The simple answer is to ride'm often or take a minute to drain the sump (think of it as a constant oil change ((unless you put it back in the tank like me))

G'day BS, how about an intro in Pictures, Stories & Intros. We're a nosy bunch *lol*
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Offline worntorn

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Re: anti syphon valve
« Reply #53 on: 06.04. 2017 13:36 »
I think the problem today for most of us is too many motorcycles and not enough good motorcycling weather. We've had a particularly long and crappy winter here in Vancouver  with dismal rainy weather starting last November and still going strong in April!
I have managed to ride the BSA a couple of times and that was enough to keep the oil in the tank. It's amazing how well it holds the oil in the tank.

Glen

Offline ralph

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Re: anti syphon valve
« Reply #54 on: 16.05. 2017 22:54 »
well just to give some feedback re my fitting of a one way valve on the oil tank breather, to hold the oil in the tank. Not really a success until a significant mount of oil has left the tank, only then creating anything of a vacuum to hold the rest back.


thanks to all for their help, advice and consideration - I did however, as always, enjoy the messing about process *smiley4*
Iron head A10, Panther 120, BMW RS100, Norton 500T special,