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Oil pressure switch

Modern 961 Norton Commando Motorcycles

Re: Oil pressure switch

Postby TonyA » Sun Jul 23, 2017 5:41 pm

Hello again , The Oil in air box fix , Breather Update Kit or whatever its called is what I am referring to Yes. The kit includes check valves 1 for the feed side and 1 for the return side. These check valves stop the oil returning to the crank case when the bike is not driven. If you wait long enough the entire oil tank will be in your crank case ! This is why it is taking you several more seconds to get the oil pressure up. Anyone who has lost the oil in their tank into the crankcase will have this problem. Do a search for oil in air box or breather . I have covered this many times (ad nauseum) , most of the time falling on deaf ears. I think Brit Twit just bought the kit . I think you know him . He can tell you how much it cost. Once this is installed , the check valves will keep the oil in the tank and not loose it all to the crank case. Trust me , you will be happier once this is installed and your problem will go away .

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Re: Oil pressure switch

Postby BPHORSEGUY » Sun Jul 23, 2017 7:14 pm

Ok, but why isn't everybodies bike doing this? Or are they and nobody noticed or mentioned it Why didn't the factory mention this and blame the switch?

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Re: Oil pressure switch

Postby TonyA » Sun Jul 23, 2017 7:33 pm

All Bikes 2016 and newer already have this installed. And yes , the others may not be noticing it. Sometimes it takes a different way of saying the same thing before others realize what you mean. Just like with me . I didn't catch on to the wet sumping issue until one of your very last posts. Ask Brit Twit if the kit came with instructions . If not , PM me and I can send you some.

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Re: Oil pressure switch

Postby BritTwit » Mon Jul 24, 2017 8:36 am

TonyA wrote:All Bikes 2016 and newer already have this installed. And yes , the others may not be noticing it. Sometimes it takes a different way of saying the same thing before others realize what you mean. Just like with me . I didn't catch on to the wet sumping issue until one of your very last posts. Ask Brit Twit if the kit came with instructions . If not , PM me and I can send you some.


Tony,
I have been trying to get the new breather kit from Norton for nearly 2 months.
First, GC couldn’t find the part number to order, then they couldn’t log into the Norton UK website to order the part, etc, etc, etc.
Long story – short, GC finally ordered the part (#5210058-R4) on 7/10, and is waiting for an order update from Kevin French hopefully this week.
The price for the entire kit was $340. According to one of the mechanics at GC the kit comes with a sheet of instructions.

Bob,
If you only need the new oil line check valves, you might want to contact Kevin French directly to see if you can buy just the valves.
I’m buying the kit because I’m still getting oil passed to the airbox from the rocker cover breather, especially when ridden hard.
Not much oil, but enough that I have to add oil after every 3 or 4 outings to bring the level up between the high and low marks on the dipstick.
1975 850 MKIII Commando
2013 961 Commando Cafe Racer
2006 Triumph Bonneville T100
2003 Ducati 999
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Re: Oil pressure switch

Postby TonyA » Mon Jul 24, 2017 10:48 am

Hello Britwit , Thanks for the feedback . Bphorseguy , let me know if you want the instructions.

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Re: Oil pressure switch

Postby Britfan60 » Tue Jul 25, 2017 9:39 am

My upgrade was performed under warranty by Gold Coast. I've never had much oil in the airbox. Maybe a tablespoon, but no saturation. However, my bike was burning oil so bad that the rocker covers were so full of carbon they did a ring change and cylinder hone. Now my oil level hasn't dropped at all in 2k miles. Also, BPHORSEGUY, like your bike, it fires up most starts immediately, but I've never had more than a flicker of the oil light and even that's only 10% of the time after sitting for a week or two. That said, sure wish my fuel light would go on when I'm low on fuel. It doesn't. It only flickers when it feels like it.
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Re: Oil pressure switch

Postby TonyA » Sat Aug 05, 2017 8:06 am

Hello Again , As I said I would perform the test (1 week no riding my 961 oil pressure test) . First , verified I have oil on my oil stick , checked stick three times also with light looking in the oil tank. This is key ! There must be oil in the tank before starting. Second , started engine and timed the oil pressure build up to clear light . Time to build up : ( 5 seconds ) after 1 week of not running the engine. Slight hydraulic lifter noise until oil pressure up light cleared and then immediately lifters quiet. The last time I rode the bike was Sunday July 30th , 2017 so 6 days ago . So there you go , your oil tank must empty slowly and completely over time . The check valves in the breather kit should stop this and resolve your problem .

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Re: Oil pressure switch

Postby BPHORSEGUY » Sat Aug 05, 2017 9:32 am

TonyA wrote:Hello Again , As I said I would perform the test (1 week no riding my 961 oil pressure test) . First , verified I have oil on my oil stick , checked stick three times also with light looking in the oil tank. This is key ! There must be oil in the tank before starting. Second , started engine and timed the oil pressure build up to clear light . Time to build up : ( 5 seconds ) after 1 week of not running the engine. Slight hydraulic lifter noise until oil pressure up light cleared and then immediately lifters quiet. The last time I rode the bike was Sunday July 30th , 2017 so 6 days ago . So there you go , your oil tank must empty slowly and completely over time . The check valves in the breather kit should stop this and resolve your problem .


Should not the stock setup stop this if it is working properly. Was the oil at the bottom of your stick, do you have the stock stick or the longer one? Thanks Tony.

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Re: Oil pressure switch

Postby TonyA » Sat Aug 05, 2017 2:58 pm

Hello , I am not sure what you mean by the stock setup ? You mean before I installed the oil breather kit ? I did not perform this test before now , so I cannot say how long to pressure up with an empty oil tank. But longer than 5 seconds for sure . My stick is the original from December 2014 so 110mm long or so. I can tell you for sure that MY oil tank would empty out in 24 hours for sure BEFORE the check valve update. So, there is nothing wrong with your bike . What you are experiencing is normal for a engine that has wet sumped its oil is all I am saying. And if you look in your tank after 24 hours , it would not surprise me if you find no oil in your tank. The update will fix this and you will be happier.

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Re: Oil pressure switch

Postby Raphi » Sun Aug 06, 2017 1:54 am

Most important question is: Does it harm the engine if oil tank is empty and you have to wait a while after starting till the oil light is out before you go to higher revs?
Don't think so...
Last edited by Raphi on Sun Aug 06, 2017 1:00 pm, edited 1 time in total.
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Re: Oil pressure switch

Postby Fast Eddie » Sun Aug 06, 2017 2:01 am

Raphi wrote:Most important question is: Does it harm the engine if sump is empty and you have to wait a while after starting till the oil light is out before you go to higher revs?
Don't think so...


Depends how much of the engine is fed by splash.
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Re: Oil pressure switch

Postby TonyA » Sun Aug 06, 2017 7:00 am

Raphi wrote:Most important question is: Does it harm the engine if sump is empty and you have to wait a while after starting till the oil light is out before you go to higher revs?
Don't think so...


The sump is never empty , there is always some oil in there. Did you mean : Does it harm the engine if OIL TANK is empty and you have to wait ... ? Let me just say that we all agree that the shortest time to clear the oil pressure light is best. The bottom end of the Norton 961 is more like a two cycle engine than a 4 cycle with plain bearings. The big ends and mains are rollers fed by splash , but lifters also rollers require the pressure , this also lubricates the cam and top end. But I agree , that if it is allowed to idle and pressure up that no harm will come. A good oil will have residual cling to the parts inside so start up will not be entirely dry.

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Re: Oil pressure switch

Postby BPHORSEGUY » Sun Aug 06, 2017 8:52 am

I'll just have to ride it everyday so this doesn't happen, just to be sure! LOL

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Re: Oil pressure switch

Postby Raphi » Sun Aug 06, 2017 1:02 pm

TonyA wrote:
Raphi wrote:Most important question is: Does it harm the engine if sump is empty and you have to wait a while after starting till the oil light is out before you go to higher revs?
Don't think so...


The sump is never empty , there is always some oil in there. Did you mean : Does it harm the engine if OIL TANK is empty and you have to wait ... ?

You are right, of course. I just corrected my post...
Thanks Tony
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Re: Oil pressure switch

Postby BPHORSEGUY » Sun Aug 06, 2017 5:56 pm

Guys, I just want everyone to know how much I appreciate your input. I think what is happening to my bike is happening to many and people just don't notice or are not posting about it.

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