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anti sump valve #462930
11/12/12 3:05 pm
11/12/12 3:05 pm
Joined: Aug 2007
Posts: 88
ohio
B
bbc Offline OP
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bbc  Offline OP
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ohio
im looking to purchase a anti sump valve. Just wondering if someone could steer me in the right direction such as brand.
Thank You in advance!!

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Re: anti sump valve [Re: bbc] #462933
11/12/12 3:25 pm
11/12/12 3:25 pm
Joined: Jul 2012
Posts: 1,561
UK Berks
A
AngloBike Offline
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UK Berks
I thought that the accepted view was that triumphs don't wet sump, unless there is some grit in the oil pump.

I'd either fix or replace it in preference to a valve, as disaster is just around the corner if you forget to switch it on

Re: anti sump valve [Re: bbc] #462967
11/12/12 6:39 pm
11/12/12 6:39 pm
Joined: Jun 2007
Posts: 144
Deltona, FL
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lrutt Offline
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lrutt  Offline
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Joined: Jun 2007
Posts: 144
Deltona, FL
I rarely ever hear of a trumpet wet sumping. Now my Commando on the other hand.....had to drain the beast yesterday before my ride.


1970 Tiger
1971 Trophy
1973 Commando
1976 CB750k
1965 CA77
1978 CB750k
1970 T250II
1971 RT1B
1977 Lemans
2001 M900
2001 XR650L
1994 FLSTC
2006 XL1200C
1984 XV1000
1981 C70
1973 Z50
1989 Hawk GT
2006 Scrambler
1970 CT90
1965 CT200
1977 R75/7
Re: anti sump valve [Re: bbc] #462969
11/12/12 6:46 pm
11/12/12 6:46 pm
Joined: Sep 2005
Posts: 5,963
NL
G
Ger B Offline
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NL
Quote:
if you forget to switch it on

The anti sump valve is a spring loaded one way (non return) valve.
You cannot forget it. It forgets itself. wink

But with all other reasons not to use it, I agree.
I had one on the BSA A65 though, some years ago. I have a new oil pump now and still loose some level, but not nearly as much as I used to.
The BSA pump is a gear pump, so not comparable with the Triumph.


Ger B

Re: anti sump valve [Re: bbc] #462984
11/12/12 9:02 pm
11/12/12 9:02 pm
Joined: Sep 2011
Posts: 955
New Zealand
Excalibur Online content
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Excalibur  Online Content
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Posts: 955
New Zealand
+1 for no real need for one on a Triumph twin. The stock pump has a built-in-anti-wet-sump valve which is effective enough.
As mentioned above, if you are getting wet sump, fix the built-in valve. Re-seat if/as necessary.

Re: anti sump valve [Re: bbc] #462989
11/12/12 9:14 pm
11/12/12 9:14 pm
Joined: Aug 2001
Posts: 7,304
scotland
triton thrasher Offline
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triton thrasher  Offline
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Posts: 7,304
scotland
And- if a ball valve is leaking, the pump is not working properly.


Amateur Loctite enthusiast.
Re: anti sump valve [Re: bbc] #463029
11/13/12 12:51 am
11/13/12 12:51 am
Joined: May 2005
Posts: 3,804
ohio
shel Offline
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shel  Offline
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ohio
"triumphs don't wet sump"
They do if they're Tridents.


When given the choice between two evils I picked the one I haven't tried before
Re: anti sump valve [Re: bbc] #463034
11/13/12 1:12 am
11/13/12 1:12 am
Joined: Jul 2009
Posts: 3,549
Vic. Australia
P
Pete R - R.I.P. Offline
In Remembrance
Pete R - R.I.P.  Offline
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Joined: Jul 2009
Posts: 3,549
Vic. Australia
There are 2 versions of wet-sumping:
1./Oil-drainage from the tank through the FEED PUMP in the normal direction which gradually floods the crankcase WHILE THE BIKE IS STORED,and not running.It may take weeks or months for the crankcase oil level to rise much.It's more likely to happen with a gear pump (Norton,BSA or Triumph Trident).It's almost unheard of in a Triumph twin with a piston pump.

It's not impossible to happen.I noticed it one time (once in more than 40 years),and more than a pint of oil had drained into the crankcase,but it took more than 6 months to happen.I can only presume that the piston was in a position where the supply ports were open,and that there was also a microscopic particle between the check ball and its seat.There was some exhaust smoke for the first few minutes when it started up.It never happened to that bike again.

I tend to agree with Dave Madigan:Although Norton/BSA riders call this "WET-SUMPING",it's not true wet-sumping;it's oil-drainage while parked for an extended time.
If a Triumph experiences wet-sumping,it's more likely to be true wet sumping,type two:

2./If the RETURN pump is at fault,it won't pump enough oil out of the crankcase,and the level rises.The crankcase oil level stays too high even when the engine is running.
That's normally caused by a slightly bigger particle between the check-ball and seat on the return pump.That particle normally found its way into the pickup tube when the crankcase drain plug was removed.

You don't need to remove the drain plug at oil change time.95% of the oil is in the oil tank.The rest is in the hoses,pump,crankshaft and crankcase.You can pump that "rest" of the oil out the return hose when you start up.Just disconnect the hose at the tank end and run it into a bucket for the 30 seconds.Then re-connect the hose to the tank.

Re: anti sump valve [Re: bbc] #463069
11/13/12 6:40 am
11/13/12 6:40 am
Joined: Aug 2001
Posts: 7,304
scotland
triton thrasher Offline
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triton thrasher  Offline
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Posts: 7,304
scotland
Of course, we don't actually know if Mr BBC has any kind of oil problem.


Amateur Loctite enthusiast.
Re: anti sump valve [Re: triton thrasher] #463092
11/13/12 2:19 pm
11/13/12 2:19 pm
Joined: Aug 2007
Posts: 88
ohio
B
bbc Offline OP
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bbc  Offline OP
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B
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Posts: 88
ohio
Hello,
I have made a mistake. I am purchaseing this for a Norton Commando. Guess I'm in the wrong Forum.
Thanks for your imput.


Moderated by  John Healy 


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