Anti wet sumping valve, who's got one ?.
- Thread starter Josh Cox
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Me too ! :wink: call me a lucky bugger but i´ve never had a problem with wet sumping even when i´ve been drinking ! :?
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I have and will continue to take the, "do nothing at all" approach. Seems the cheapest, easiest and safest way to deal with a 'non problem' ..... or is that the Logical person that lives inside me speaking?
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Has anyone had a minor or major problem caused by wet sumping ?
Ron
Ron
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Ditto what comnoz posts above. Worked on a friends 750 in the early 90's. Long story short ... all oils changed, carbs rebuilt, tuned it up, and it ran great. Then it sat for two weeks until he showed to pick it up. WOULD NOT START, and was a bugger to kick over. Mmm ... no oil in the oil tank ... but no oil leaks anywhere ??? Drained the oil from the sump (alot there too) refilled the oil tank, and it started first kick !!! Kicking against sump full of oil is hard work, and it does spin slower ...
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Yer lucky Dave !!! Of the 9 Nortons I've owned, a couple of them didn't really seem to have the "oil tank draining and filling the sump up" problem. No matter how long they seemed to sit, the oil tank didn't empty and the would kick right over, and START. 
However ... most of them have had the "sump filling" problem if they sit too long without running though. Even my 1979 Triumph T140E does it a little bit ... ugh !!! :evil:
However ... most of them have had the "sump filling" problem if they sit too long without running though. Even my 1979 Triumph T140E does it a little bit ... ugh !!! :evil:
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nortriubuell said:Yer lucky Dave !!! Of the 9 Nortons I've owned, a couple of them didn't really seem to have the "oil tank draining and filling the sump up" problem. No matter how long they seemed to sit, the oil tank didn't empty and the would kick right over, and START.
Every Norton I have owned would wet-sump eventually. Some took 3 days and some took 3 months but the sump would always end up with extra oil on it's way to the floor.
I decided a wet-sumped Norton was no big deal after I watched a neighbor pull the Harley out of the back of his garage where it had been for several years and hook the jumper cables to his truck. He hit the button and we heard a loud pop and several quarts of oil went running down his driveway. Seems there was enough oil [and-or gas] in the cases to hydraulic lock the bottom end. It blew a large hole in the bottom of the cases. He went out and bought a Honda. Jim
DogT
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So far I don't have any oil coming out anywhere except the tiny bit that comes out of my central oil tank from the breather which I have going into a catch pill bottle so it doesn't leak all over the air filter and gearbox. You all know how the tiniest bit of oil can find it's way all over everything. So far my oil remains in the bike, unlike past years.
Dave
69S
Dave
69S
I had the timing cover modified to fit a light spring and a ball (Nortech Engineering, Vail, AZ, USA) to shut the oil off when the motor was not running. I have had it forever, never been a problem. It leaks a little now, but by the time the bike warms up a little most of the oil (15W40) is back in the tank. Lapping the oil pump might help.
The leak into the primary is probably a leak past one of the primary chain case mounting screws unless your crankshaft seal is more than a few years old.
Greg
The leak into the primary is probably a leak past one of the primary chain case mounting screws unless your crankshaft seal is more than a few years old.
Greg
With OIF being even higher than a stock tank, I fitted a valve, it will eventually have a switch to cut the ignition so that as I age, I will not forget to turn it on... but then I will probably wonder WTF is wrong with this bike that won't start :mrgreen:
Jean
Jean
I tried various anti wet-sump valves and never entirely happy with them - I made up a system with a manual tap in the oil feed line rigged to a micro-switch wire to an automotive 12 volt relay. With the tap off all of the bikes electrics are switched 'off' - thus no ignition. When the tap is turned on the microswitch operates the relay and all of the electrics are switch on. The entire setup cost about £15.00.
Hi Guys had the same problem got side tracked one morning and forgot to turn the tap on Did 25 Km before it went Phut New rings Con Rod Shells and thing I was lucky by all accounts As the cases were not damaged In SA parts are not easy to get Got a S/H rod from a Atlas . Mine still wet sumps in 3 days That one way valve looks good to me Andynegative storys Welcome
ColinC
ColinC
For mine, it will sump in a week, completely. But if I can get the crank position so that it is right at the top of it's stroke, she doesn't seem to sump at all. Can go 2 months and still have plenty of oil in the tank. That's been the case now the last 3 times i've ridden. The key is to get it right at the top, not just close but right up there. Has been rather nice not having to drain.
My rule of thumb is that if the screen is showing in the oil tank then she gets drained. I don't want the motor running without oil at first start.
My rule of thumb is that if the screen is showing in the oil tank then she gets drained. I don't want the motor running without oil at first start.
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I always figured there was enough oil in the crankshaft's sludgetrap to supply the bearings for quite a while so I have never drained the cases and put it back into the oil tank.
The only time I have ever had rod bearing problems was on an engine I built for someone else, he was using an anti-wetsump valve. I have no way of knowing if the valve caused the failure. Jim
The only time I have ever had rod bearing problems was on an engine I built for someone else, he was using an anti-wetsump valve. I have no way of knowing if the valve caused the failure. Jim
steveyacht said:
I've owned my bike since 1978, and in the period between then and 1996, me and my other Nortoneering buddies never knew about wet sumping. Every weekend we simply fire our beasts up and take off for the hills of Pennsylvania without a second thought. For 18+ years...Never. Any. Problem.
Fast forward to the present...my bike restored in 2008...now I'm "internet enlightened" and reading about this wet sumping "problem" on all the Brit Forums. OMG!!! So I religiously began draining and filling before every weekend ride so nothing catastrophic would happen if I didn't.
However, in the last year or so, I've gotten lazy crawing under the bike in the morning heat & humidity to perform the PITA ritual. Now I carefully start her up and set the carb to idle at 1500 - 1800 RPM for a few minutes before easing out of the driveway. The first 5 minutes or so into the ride I don't go above 3000 RPM...and after that it's full speed ahead!!
I'd like to hear from anyone on this Forum who's had a problem (i.e., blown seals, etc.) by NOT draining the cases first?
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cmessenk said:
The biggest problem I've ever had with my old Interstate was just kicking it over. Would not start when wetsumped.
As you all saw in the video the 72 doesn't mind as any oil not sucked up by the oil pump is quickly passed up the breather into the oil tank.
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