New product?

I was thinking of drilling, tapping and destroying a few things to treat the wet sumping (the symptoms not the reason) when I found this on Old Brits.... It arrived today and it is a genuine Norton part?! Did I stay too long under a rock or is it a new new product??
http://www.oldbritts.com/11_067281.html

prmurat said:

Did I stay too long under a rock....

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Yes.

no, not a stock part

but a very nice idea offered by Old Britts because it allows you to dump the sump and/or clean the screen from one source point.

I dealt with my wet sumping issue by installing the one way valve in the oil line from CNW

Real question is: why is it in an Andover Norton sealed bag?

I don't see how this part is going to prevent "wet-sumping". It looks the same as the large drain plug on the crankcase on my 74' 850 Commando with the addition of the the smaller drain bolt.

prmurat said:

Real question is: why is it in an Andover Norton sealed bag?

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It is an Andover Norton part.

http://www.andover-norton.co.uk/New%20Items%20In.htm

06-7281 Magnetic Crankcase Filter Assembly 24.95

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1up3down said:

no, not a stock part

I dealt with my wet sumping issue by installing the one way valve in the oil line from CNW

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good luck with that :shock:

What is wrong with the one-way valve from CNW? I have had on in use for over a year with no problems.
YING

Oh boy here we go...

good luck with that

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ok, I'll bite, since you made the comment:

I have had my valve from Colorado Norton Works for some 19 months now, of course no issues.

Conclusion: You work for CNW, you know for a fact the "failure" rate of their valves, or else you would not make
a statement that strongly implies that those people buying their valves are going to need "good luck".

Request: Show your statistics, number of valves sold, valves "failed", and what if anything did CNW do about it.

Looking forward to your verified findings of CNW failed one way valves.
Thanks for your anticipated reply.

I have been in mechanics all my life and we NEVER put a restriction in a suction line especially on a pick up line with a NON submerged oil pump as it is to easy to lose prime. if for ANY reason your oil pump gets an air bubble in it ( lose prime ) IT WILL NOT pull the check ball open and I am sure you can figure out what happens next. Also just for reference I have seen motors fail with the anti sump valve and it was from lack of oil pressure. My recommendation if you MUST run this bodge is to at least install a permanent oil pressure gauge that way you stand a chance of catching it before it goes BANG.

1up3down said:

ok, I'll bite, since you made the comment:

I have had my valve from Colorado Norton Works for some 19 months now, of course no issues.

Conclusion: You work for CNW, you know for a fact the "failure" rate of their valves, or else you would not make
a statement that strongly implies that those people buying their valves are going to need "good luck".

Request: Show your statistics, number of valves sold, valves "failed", and what if anything did CNW do about it.

Looking forward to your verified findings of CNW failed one way valves.
Thanks for your anticipated reply.

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I have tested two types of anti wet sump valves: RGM valve (closed alloy body) and CNW valve (alloy with see-through part in the middle). Compared to using none the RGM type valve effected an oil pressure drop of approximately 10% throughout the rev range where the CNW valve caused oil pressure loss close to nothing, hhmmm??
When I took both valves apart I found out the RGM type valve has a reasonably tight spring to press a steel ball on its seat preventing oil from entering where the CNW valve has a synthetic ball hold by a less tight spring. No need to say which type valve I fitted to my Norton, so far I did over 20.000 satisfactory miles and yes I do have an oil pressure gauge next to the rev counter.

batrider said:

Oh boy here we go...

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i hear you there batrider....

Mr 1up
i think if you do a search (which having read some of your post your unfamiliar with this function) and carefully consider what may happen with failure, i think you'll remove it (unless you have a pressure gauge, which as Bill has suggested is monitor for the blodge)- unless of course you don't really ever ride it - then yes it is good for preventing an oil spot on the floor :shock: :mrgreen:

Add me to the list of CNW one way oil line valve owners. Two years now.
I was told by Matt at CNW that his valves do have a much lighter spring so there is very little loss of pressure.
Also, I think Velocette has had a one way valve, successfully, since the 1950s. Never heard of a failure.

I had a simple WOG(water oil gas) mechanical lever valve in my oil line for 15 years.
Worked great, just had to remember to turn the lever on prior to a ride.
Big relief now with the CNW valve, don't have to remember to do anything.

I know Matt and I know there is no way he would risk his reputation and business selling anything suspect.
I trust his expertise and judgement and I feel very good about having his valve in my oil line.

Sounds like there was an adhesive problem with an early small batch, of which one owner had a valve come apart
and spill oil. This problem was apparently immediately taken care of, with no other issues since.

Here is the statement from Matt at CNQ back in 2010.
Thank you Ludwig for showing this link to clear this up.


Hi all,

Well what I have seen has promted me to react to this problem the only way I know how. With a wetsump valve recall. There has been to many recent issues with the valves coming apart, and they do so in the same place on all the reported cases. This tells me that the valve does in fact have a problem with regards the the assembly.

Heres what CNW is doing. Other vendors may offer this as well but it really up to them, not me. We are all getting the valve from the same source but its still up to each individual company to deal with this however they choose.

- Please contact the dealer you purchased the valve from and discuss the problem with them. What CNW is doing is what we have decided is the best approach. Your specific vendor may not agree with this.

- If you purchased the valve from CNW, we will do one of three things (your choice)
1- Replace your valve with the latest version which is using a tighter interference fit and also a different glue to assemble the valve. We have these in stock and have not been able to make them come apart. We have used some serious pressure, far more than it could ever be put under when installed, without any failures. We will be using this type on our own machines.
2- Replace your valve with a different version once it becomes available. Al Miles is currently looking at some options but I dont know when these will be available. It may be that he is satisfied with the results of the style mentioned above.
3- Refund your money in full.

I will keep using these valves as I am confident that the functionality of the valve works as its supposed to. Its the actual assembly that is failing, not how it operates.

I believe that the assembly issue is related to the more recent batches of valves made but I am not putting a time limit on the actual age of the valve in regards to the recall. In other words, I dont care when you actually bought the valve from us, we will still let you choose what option above you want to go with.

CNW will contact every one that has bought a valve from us by e-mail, phone or regular mail depending on what information we have on file. Feel free to contact us at the shop with any questions. 1-970-882-7163 or nortonworks@fone.net

I truly apoloogize for any problem this may cause and we'll try to make this as painless as we possibly can.

Thanks

Matt / Colorado Norton Works

ludwig said:

highdesert said:

..Velocette has had a one way valve, successfully, since the 1950s. Never heard of a failure..

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How is Velocette doing , these days ? ..

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haha - good one!

or this thread - located with my first search................

anti-sump-failure-t5677.html

i had 1 do the same thing to me (split) and another one lose suction from air in the valve - caught both before catastrophic failure - had 'em for years before hand and never thought about them much - never again!

How is Velocette doing?

They are out of business, I assume you knew that.
However, their going out of business had nothing at all to do with their having a working one way oil line valve.
But you knew that also? Or maybe you did not, but are trying to make some kind of contorted logic link?

mikegray660 said:

i had 1 do the same thing to me (split) and another one lose suction from air in the valve - caught both before catastrophic failure - had 'em for years before hand and never thought about them much - never again!

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So you got air in the valve.........??? Did you forget to refill after draining the oil tank or do you buy your hose in the toy shop?

nortonspeed said:

mikegray660 said:

i had 1 do the same thing to me (split) and another one lose suction from air in the valve - caught both before catastrophic failure - had 'em for years before hand and never thought about them much - never again!

Click to expand...

So you got air in the valve.........??? Did you forget to refill after draining the oil tank or do you buy your hose in the toy shop?

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ha good one - i would tell you about my hose, but you'd obviously be very very jealous (or excited-but homey don't swing that way!)! :shock:

on serious note drained tank for change - still unsure how air got in line but it did..... just happy i caught it - may 5 minutes w/ no flow (was seriously shietin myself when I noticed no return to oil tank :shock: )

It's always seemed to me that if oil is seeping by the oil pump and you put a valve in the line above the pump, that the oil in the line between the valve and pump will seep by the pump and you'll be sucking air at start up. A lot of folks use them successfully so a little air must not be too bad, but this reasoning is what kept me from installing the one I bought several years ago.