Anti Wet Sump Valve

jms · 2026-08-27T11:33:57-0600

Hi
This anti wet sump valve has been on my Commando for 5-6 years. The bike has seen very few miles. Is this the valve that has a history of separating at the glued joints? It's primarily made of plastic. The thing that originally caught my eye was that you could see the oil through the clear plastic but obviously not worth having it on if it could break and then engine failure in the event I didn't happen to notice

dobba99 · 2026-08-27T11:40:46-0600

jms said:
Hi
This anti wet sump valve has been on my Commando for 5-6 years. The bike has seen very few miles. Is this the valve that has a history of separating at the glued joints? It's primarily made of plastic. The thing that originally caught my eye was that you could see the oil through the clear plastic but obviously not worth having it on if it could break and then engine failure in the event I didn't happen to notice

Dunno about the falling to bits aspect, but any sort of valve in the oil feed to the engine is a recipe for disaster, Unless it has an electrical cutout to isolate the ignition when in the shut position.

kommando · 2026-08-27T11:55:21-0600

There was a plastic one before that fell apart posted on here a few years ago. Dump it.

Tornado · 2026-08-27T13:11:45-0600

Here's my homemade AWS vavle with ign shutoff switch....A Dahl "PEX" type batyhrrom water tap with stainless ball and brass body. A "NO" momentary microswitch actuated by the tap handle...held in the closed switch contact positiion while tap is in the open position. <$20 in bits to cobble together. Working great for 7 yrs.

ashman · 2026-08-27T15:31:47-0600

If you don't ride your bike much with lots of time sitting, I rather let the oil migrate to the bottom end just to keep everything lubed, takes 5 minutes out of your life to drain the sump, best thing just ride the Norton regularly then you have no problems with wet sumping, unless it does it badly.

Anti Wet Sump Valve

jms

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