Author Topic: Anti-sumping switch  (Read 786 times)

Online RichardL

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Re: Anti-sumping switch
« Reply #15 on: 26.08. 2020 15:19 »
I did skim all the posts here, so feel somewhat safe that I'm not repeating, "Check valves would seem to fall into the same category of concern."

Richard L.
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Offline RogerSB

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Re: Anti-sumping switch
« Reply #16 on: 27.08. 2020 20:41 »
Jeepers! What if the earth wire to the magneto comes adrift - I'm not going to fit one!

Anyway, thanks for your observations.

The oil level in my A10 tank drops by about 10mm in 10 days,  *bright idea*  I'll do what I've always done and use my A10 at least once in 10 days - just to save getting down on my knees.

Cheers.
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Online muskrat

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Re: Anti-sumping switch
« Reply #17 on: 27.08. 2020 21:44 »
Your lucky Roger. My A7 will drop it's whole oil tank into the sump in ten days  *pull hair out*
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Online chaterlea25

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Re: Anti-sumping switch
« Reply #18 on: 27.08. 2020 22:47 »
Hi All,
Talk about getting yer knickers in a twist  *eek*

I do not see an issue with the switch, if it worries you that much connect the mag cutout wire to the switch and loop on to the mag end cap
That way you test the wiring  function every time you stop the engine with the kill button or switch
If it stops all is well  *ex*
the likelyhood of the wiring failing when the bike is not in use is minuscule 
I always check oil return after starting  the bike from cold and watch the return for a minute or so

John
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Offline stev60

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Re: Anti-sumping switch
« Reply #19 on: 28.08. 2020 01:43 »
youve got me beat there Musky mine would be about 20 days yet other times it stays where it should , I just drain the sump regular, wouldnt dream of putting any obstruction in oil line, ive seen the results. Whats a motor worth compared to undoing a sump plug, Im sure some of these bikes would have let oil through from new
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Offline RogerSB

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Re: Anti-sumping switch
« Reply #20 on: 28.08. 2020 11:08 »
I do not see an issue with the switch, if it worries you that much connect the mag cutout wire to the switch and loop on to the mag end cap
That way you test the wiring  function every time you stop the engine with the kill button or switch
If it stops all is well  *ex*
the likelyhood of the wiring failing when the bike is not in use is minuscule 
I always check oil return after starting  the bike from cold and watch the return for a minute or so

Hi John, thanks  *good3*, If I do decide to change my mind that would be a much better way to wire it and an excellent way to continually test it's working ok. Why didn't I think of that!
As for checking the oil return - I've never not checked it after starting. I would imagine most of us do that out of routine.
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Offline bikerboy

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Re: Anti-sumping switch
« Reply #21 on: 05.09. 2020 15:37 »
I have a personal and cheap mod I do now every time I build an A10. I drill a 3/8 hole in the sump plate. I then weld a nut inside the sump plate and with a short set screw and a copper washer I have a drain valve . If it has wet sumped it takes me about 5 minutes to drain the oil.
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Online RDfella

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Re: Anti-sumping switch
« Reply #22 on: 05.09. 2020 17:46 »
When I use a car, I get in, turn the key and go. With my Firestorm I pull the choke, turn the key, press the starter button and go. With my other bikes I turn petrol on, tickle the carb(s) give it a couple of kicks and go. With the A10 I first of all look for the correct spanner. Then look for a clean draining tray. Then a clean rag to kneel on whilst I grope around underneath for the drain bung (I pity those who have to drop the sump plate). Then, with oil on my hands, wait five minutes for the oil to drain. Then refit the bung. Now go get a funnel and filter and pour the tray's contents back into the tank. Then it's off to the house to wash my hands. What a bundle of fun. I'm not prepared to go through that rigmarole every time I want to ride the bike, which is why I have now put a valve in the oil line. If one day I forget to turn it on, so be it. Maybe the bike will be off the road for a while, but better than never using it because the hassle of preparing it for use means I simply choose a different bike to ride.
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Offline paulmbsa

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Re: Anti-sumping switch
« Reply #23 on: 05.09. 2020 19:43 »
I have 12 bri tie valves fitted the first was fitted at the BSAOC international rally in Belgium in 1994 never had a problem with any just make sure they are bled
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Online Greybeard

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Re: Anti-sumping switch
« Reply #24 on: 05.09. 2020 21:27 »
If you start the engine and let it tickover for a few minutes it should pump the jollop back into the tank, shouldn't it?
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Online metalflake11

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Re: Anti-sumping switch
« Reply #25 on: 05.09. 2020 21:45 »
I have 12 bri tie valves fitted the first was fitted at the BSAOC international rally in Belgium in 1994 never had a problem with any just make sure they are bled

You really, really don't want your bike to wet sump do you!!
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Online berger

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Re: Anti-sumping switch
« Reply #26 on: 05.09. 2020 21:51 »
erm greybeard before I stripped my engine and sorted the ball and seat out in the crank case plus fitting the srm pump mine filled the cases to the extent it threw it out of the breather all over the floor and filled the mag. which I have mentioned in other posts. admittedly for it to get as full as that it was left for about 2 months. since doing the work it lasts all winter and never wet sumps------- yet!
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Offline Seabee

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Re: Anti-sumping switch
« Reply #27 on: 06.09. 2020 02:07 »
I have had a britie on the SR for nearly 20 years with no issues. I put a different brand on the RR and would have ruined it one day, but for the oil pressure gauge I had added! The check valve stuck, but I caught it quickly.
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Online Greybeard

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Re: Anti-sumping switch
« Reply #28 on: 06.09. 2020 10:04 »
My bike never empties the oil tank. I estimate maybe an inch down the tank from normal.
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Online muskrat

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Re: Anti-sumping switch
« Reply #29 on: 07.09. 2020 05:57 »
Hay RD, good job you don't have an early plunger. You would add removing the level screw on the primary cover and wait for it to drain to the correct level as well.  *pull hair out*
Cheers
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