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Wet Sumping

Submitted by malcolm_begg on Fri, 12/08/2016
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Nortons - General

This is just an idea on how to stop wet sumping and still have a motorbyke!,I would like to know what other owners think.

I have a petrol tap which uses a key to turn the petrol on,you can only remove the key when you turn the petrol off,my idea would be to fit a similar tap/valve to the oil supply line using the same key as the petrol tap,the difference being that you can only remove the key from the oil supply line when the valve is open,you cannot turn the petrol on until you open the valve for the oil,this would ensure that you could never run your motorcycle with no oil supply.

Submitted by Anonymous (not verified) on Fri, 12/08/2016

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This would be one of the better ways of doing it, but there is a potential difficulty. Many valves across a wide range of types are restricted at the point where they close off. Ball valves typically do this, gate valves less so. Where flow rates are critical, you can find so-called 'full flow' valves.

My worry is that the internal diameter at the point of closure in a standard petrol tap is somewhat less than the 3/8" i.d. you would normally use for an oil line. The restriction to oil flow could product an unpleasant result so if you go ahead, pay particular attention to the dimensions of the valve/tap.

Submitted by malcolm_begg on Fri, 12/08/2016

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Previously Chris Grimmett wrote:

This would be one of the better ways of doing it, but there is a potential difficulty. Many valves across a wide range of types are restricted at the point where they close off. Ball valves typically do this, gate valves less so. Where flow rates are critical, you can find so-called 'full flow' valves.

My worry is that the internal diameter at the point of closure in a standard petrol tap is somewhat less than the 3/8" i.d. you would normally use for an oil line. The restriction to oil flow could product an unpleasant result so if you go ahead, pay particular attention to the dimensions of the valve/tap.

Yes, I had thought about that but if someone was to manufacture these as a pair the size of the oil one would have to take account of the fact that it would have to be large enough not to restrict oil flow,I have contacted the manufacturer of my petrol tap and at present I am awaiting a reply.If they get back to me that is one of the points I would be addressing,but thanks for getting back to me with that and hope that some manufacturer out there can see the that there is a market for this.

Submitted by malcolm_begg on Sat, 13/08/2016

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Previously George Phillips wrote:
Do you have a link to the petrol key item, Malcolm? Sounds like a useful security device. George
http://www.ebay.co.uk/itm/ROYAL-ENFIELD-LOCKABLE-FUEL-PETROL-TAP-WITH-2-KEYS-BRAND-NEW-/121294941315?hash=item1c3dbdec83:g:RPUAAOxyXzxTIzz~This is one of the sites that can be found for supplying these, I am sure if you type in 'petrol tap' on ebay you will find a lot more, as you said it is a good security device,if someone does steal your byke ,they are not going to get very far!

Submitted by george_phillips on Sat, 13/08/2016

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Thanks Malcolm. Interesting concept. What do you do about the reserve tap which requires fairly instant access? If you cap it off you have to have a good knowledge of miles/fuel load so's you don't run out.

Submitted by malcolm_begg on Sat, 13/08/2016

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Previously George Phillips wrote:
Thanks Malcolm. Interesting concept. What do you do about the reserve tap which requires fairly instant access? If you cap it off you have to have a good knowledge of miles/fuel load so's you don't run out.
All I would do would turn the key through 90 degrees!

Submitted by malcolm_begg on Sat, 13/08/2016

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Previously Dan Field wrote:

Won't stop anyone pushing it into a van tho! ;)

I'll you to come up with an idea to stop that!!

 


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