Anti wet sump valve sieze (2015)

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worntorn said:
I would say that the OP with his destroyed engine probably considers this to be a topic worthy of discussion. Since these poppet type inline valves are still being sold and seem to have been installed in fairly great numbers, this might even be a more important topic that what kind of Carb someone thinks is best or where to get an original looking brakelight switch?

Both of which are OK topics for me, it's all good, read what interests you, ignore the rest, but why complain that a discussion which is of interest to others doesn't interest you?

Glen
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+1
 
Damn Pete, you took the wind right out of my sails by agreeing with me :mrgreen:

You must have been reading Dale Carnegie again (How to Win Friends and Influence People)
Written in 1936 but reads like it was written in 2015, great book.
Read it for the first time recently and wish I had read it a long time ago, definitely mishandled a few important things along the way.

Glen
 
Except for non destructive electrical and fuel issues there have been more reports of ruined engines by wet sump solution failures than anything else. Wet sump show stoppers seem as common as flat tire saves reported and considering maybe 10% of Norton activity is online we don't even know all the other failures to base choice of risk vs benefit. Much as the few Norton forums are informative for some scope of our hobby - its the ancient Brit Iron vendors world wide that really know the score on this so for some boredoom relief I think I'll start calling me one by one and ask if they know of other failures we don't that count. Only peace of mind for me ridding off into unknown to ignore wet sump like hobot or by sump plug messy diaper changing or fit an almost fail safe manual valve. Best wisdom is quit the dangerous costly hobby like our wise surviving Frank Damp Norton test rider.

Gripper after ya seal more time and money from rest of life on the recovery process I-we are all ears on what you find to get engine back up and what you will do about wet sump philosophy lesions. Space craft still crash or fail in orbit d/t valve failures and human error...
 
You only need to forget to turn that ball valve on once, BTW that's the reason I'm rebuilding my 750. STUPID,STUPID,STUPID.
 
Anti wet sump valve sieze (2015)

You should see the bottom end :(
 
I think it's fair to say valves that rely on memory or a spring and ball should not be used for this purpose. I know I would forget to open the valve at some point in time just as you did. And the spring and ball has proven to be unsuitable.

Glen
 
jug said:
Anti wet sump valve sieze (2015)

You should see the bottom end :(
Click to expand...

Isn't it funny how the little pet peeves we get with a 1950's engine design allow us to ("Anything that can go wrong, will go wrong." ) introduce the great fix which turns out to really "fix" the engine. :shock: We let Murphy into the room. Abandon all hope, ye who enter here... Dante
I can only say Live and learn from mistakes.
Regards,
Thomas
CNN
 
jug said:
Anti wet sump valve sieze (2015)

You should see the bottom end :(
Click to expand...

Sorry to see that Jug. Is that your really nice looking yellow bike that you posted pics of in the gallery recently?

Look on the bright side sir... it's a perfect excuse to upgrade things internally... JS lightweight pistons and a 'more fun' cam would be nice in a bike like that... !
 
The take-home message from this thread may be "Remove all valving options from between the oiltank and oilpump and ride the bike daily to prevent the risk of wet sumping" - just like the original 1970's Commando owners had and did.
Ta.
 
Fast Eddie said:
jug said:
Anti wet sump valve sieze (2015)

You should see the bottom end :(
Click to expand...

Sorry to see that Jug. Is that your really nice looking yellow bike that you posted pics of in the gallery recently?

Look on the bright side sir... it's a perfect excuse to upgrade things internally... JS lightweight pistons and a 'more fun' cam would be nice in a bike like that... !
Click to expand...
Yeah buddy, that's the one. Already got JS LONG RODS and his radius cam should show up this week. Ordering the bits as I work my way up. LOL
Thanks Jim.
JUG
 
needing said:
The take-home message from this thread may be "Remove all valving options from between the oiltank and oilpump and ride the bike daily to prevent the risk of wet sumping" - just like the original 1970's Commando owners had and did.
Ta.
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Amen.
 
So I must remove my valve with interlock even though there have been zero problems with those?
Ride the bike daily might work in Oz but not everywhere. For example, my friend in the Maritimes reported four feet of snow of the ground recently. :shock:

I smell another furphy! :D

Glen
 
Aw relax Glen you and I and a few others have a fail safe valve that if fails we just don't start till something simple fixed with our 'eye sore' valve warts. Just be glad we ain't a light aircraft hobby site with mid flight failures like some other British aircooled push rod craft that wet sump.
 
I am going to throw this out to the group.
:idea: How many failures have derived from a Mark III Timing case mod for anti wet sump where that design type caused engine oil starvation? In other words lets here it from all the MkIII riders out there.
Cheers,
Thomas
CNN
 
I got a MKIII timing cover and correct conical seal, and it still wet sump. Buggered if I know.
jug
 
jug said:
I got a MKIII timing cover and correct conical seal, and it still wet sump. Buggered if I know.
jug
Click to expand...

My pre Mk III has a Mk III timing cover and any time it has been apart the non return thingy has been stuck open.
 
worntorn said:
So I must remove my valve with interlock even though there have been zero problems with those?
Ride the bike daily might work in Oz but not everywhere. For example, my friend in the Maritimes reported four feet of snow of the ground recently. :shock:

I smell another furphy! :D

Glen
Click to expand...

You don't must do anything. Please do what you think best.

If there have been "zero problems" (thats a big "if"), that means zero problems yet.
 
ntst8 said:
jug said:
I got a MKIII timing cover and correct conical seal, and it still wet sump. Buggered if I know.
jug
Click to expand...

My pre Mk III has a Mk III timing cover and any time it has been apart the non return thingy has been stuck open.
Click to expand...

I also have the MKIII on my 72. Even after working the plunger and orifice to function smoothly it is still prone to oil flow.
These covers are also subject to the AMR/Nortech MOD to prevent wetsumping for they are not totally effective as is.
 
CanukNortonNut said:
How many failures have derived from a Mark III Timing case mod for anti wet sump where that design type caused engine oil starvation?
Click to expand...

I don't know what that modification is. Is it the same as the AMR mod ?

If it is, I refilled the oil tank when I put the motor back in the frame in December ( no sense running it without oil...) and when I started the bike a week ago the oil was still half way between the High and Low marks on the dipstick. I have not seen any imdication of oil starvation.

Greg
 
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