Author Topic: So you want to put a tap in your oil line.  (Read 1089 times)

Online Brian

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So you want to put a tap in your oil line.
« on: 28.07. 2013 11:46 »
This bike has just come up for sale here in AUS, its on e-bay.

Read the description and then decide if you ever want to fit a tap in the oil line of your bike.

http://www.ebay.com.au/itm/bsa-A65-1972-/281142973280?pt=AU_Motorcycles&hash=item41756d5360#ht_107wt_962

Online trevinoz

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Re: So you want to put a tap in your oil line.
« Reply #1 on: 28.07. 2013 22:48 »
As I've said before, I saw a Commando engine which had an automatic valve in line and it was buggered when the valve failed to open. No rods through the case, fortunately.

Trev.

Offline bsa-bill

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Re: So you want to put a tap in your oil line.
« Reply #2 on: 29.07. 2013 07:49 »
I agree with the above comments 100%
Having reached the age of seventy I can vouch that the chance of forgetting to turn on a tap (or remembering anything) is much more likely than a non return valve failing.
And a safety switch involved somehow is just yet one more thing to fail.
Each to his own tho, if a extra manual valve is your choice then go with it
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline A10Boy

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Re: So you want to put a tap in your oil line.
« Reply #3 on: 30.07. 2013 11:54 »
I have a "Dove" tap fitted to my AJS. It has a switch which earths out the Kill button so you can't start it until it's switched on. Anyway switching it on is part of the start up routine, automatically remembered as is turning on the petrol or wearing your helmet. In 4 years, I've never forgotten it. Having said that, I wouldn't use just a tap, some do but it's too risky for me.
Regards

Andy

1958 Super Rocket
Plus
1974 Kawasaki Z1a
Yam XJR 1300

Offline jfligg

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Re: So you want to put a tap in your oil line.
« Reply #4 on: 30.07. 2013 12:01 »
I had a plastic anti sump valve that cracked. I woke up one morning at a ralley to find a puddle of oil underneath it. I thank my lucky stars it didn't happen while I was riding. I'll never use anything in line again.  I'll just drain the sump after it sits for long periods of time. Jeff

Online Ted_Flash

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Re: So you want to put a tap in your oil line.
« Reply #5 on: 31.07. 2013 10:15 »
If you must use an extra valve/anti-sump valve in the oil line the way to do it is use BOTH, in parallel.  Then if the on-off valve fails due to user error the anti-sump valve prevents disaster.
Ted Wilkinson, Ramsbottom, Lancashire
1950 Golden Flash

Offline a10gf

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Re: So you want to put a tap in your oil line.
« Reply #6 on: 31.07. 2013 12:15 »
Ted_Flash wrote:
Quote
...use BOTH, in parallel.  Then if the on-off valve fails due to user error the anti-sump valve prevents disaster.
Explain further ?? Thanks.

A10 GF '53 My A10 website
"Success only gets you a ticket to a much more difficult task"

Offline bsa-bill

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Re: So you want to put a tap in your oil line.
« Reply #7 on: 31.07. 2013 15:00 »
Quote
Then if the on-off valve fails due to user error the anti-sump valve prevents disaster.

heyup Ted you got me foxed also
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online Ted_Flash

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Re: So you want to put a tap in your oil line.
« Reply #8 on: 01.08. 2013 09:47 »
Ted_Flash wrote:
Quote
...use BOTH, in parallel.  Then if the on-off valve fails due to user error the anti-sump valve prevents disaster.
Explain further ?? Thanks.
Put a standard cheap on-off valve in the oil line - but either side of it, tee in with a line to/from the anti-sumping valve.  The two bits of kit then protect each other from failure - if the manual valve is left off or moves to the off position with the engine running, oil flow goes via the anti-sumping valve, if the anti-sumping valves fails, the oil flow is going via the manual valve.  Chances of both failing together are much reduced.

The only challenge is avoiding a plumbers nightmare of pipework.
Ted Wilkinson, Ramsbottom, Lancashire
1950 Golden Flash

Offline a10gf

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Re: So you want to put a tap in your oil line.
« Reply #9 on: 01.08. 2013 09:57 »
^^^  
OK, maybe I got it, 2 valves in parallel on the oil feed line? (good idea, one manual + a 'safety' automatic).
Was confused by the reference to 'anti-sumping valve' which I thought was the engines' built-in anti-sump (the spring & ball).

A10Boy wrote:
Quote
I have a "Dove" tap fitted to my AJS. It has a switch which earths out the Kill button so you can't start it until it's switched on
Nice system.

Basically, without some extra "100% failsafe" feature, I'd never take the chance on any anti-sump as one day an error will be made (or the valve fails).

A10 GF '53 My A10 website
"Success only gets you a ticket to a much more difficult task"

Offline bsa-bill

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Re: So you want to put a tap in your oil line.
« Reply #10 on: 01.08. 2013 09:58 »
Got it Ted - the duel plumbing didn't occur to me (thinking out of the box you are)

Would think it could be done quite neatly, belt and braces
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco