Stop damaging your motors with oil shut off valves

Status
Not open for further replies.
Dan1950:
I mentioned it in post #9 on the 1st page.
Dan1950 said:
To me the logical solution is to place a place non-return check valve on the high pressure side of the oil pump.
Click to expand...
And was told it wasn't feasible.

Tornado said:
Not sure this is a possibility on Commando without engineering the casings. Unsure if oil sitting at high side gear of pump can make its way past to low side (return oil) gear then on down to sump. There was a recent thread where someone was struggling to solve very rapid wet sumping, looking at pump sealing to casings etc. Turned out oil was getting past pump in an unexpected fashion I think?
Click to expand...

======================

I didn't state it wasn't feasible to have a high side check valve, but that the casing would need engineering/work to achieve that...which is what AMR's mod does.
 
Tornado said:
======================

I didn't state it wasn't feasible to have a high side check valve, but that the casing would need engineering/work to achieve that...which is what AMR's mod does.
Click to expand...
All the AMR requires is the Timing cover and the oil pump to do the modification There is no modification necessary to the "cases" other than screwing in a grub screw for the PRV modification. All three modifications, timing cover, oil pump and PRV costs $100

Anti Wet Sump Information – Alternative Motorcycle Repair

www.amr-of-tucson.com www.amr-of-tucson.com
 
Living dangerously. Do not do this is real life. The dangling key.

Stop damaging your motors with oil shut off valves


Funny how I can't see how filthy that frame is until I take a pic.

Oh yeah, and now I have several things I can forget, and blame on human nature.

1) Forget to put the key on the valve handle after a ride
2) Forget to Close the valve after putting the key on the handle
3) Take the key off the valve insert it in the ignition and forget to Open the valve.
The list goes on.

I've done that oil change no immediate re-fill due to alien invasion thing and ridden 4 miles before I realized I did not re-fill the oil tank. Pulled over and pushed it home that 4 miles once I realized how stupid I was. Got home, filled the tank and took off again. I did regular complete oil changes after that. Put 12K more miles on that motor and it never did blow up. It was a bit noisy though. Held 25psi oil pressure at the rocker spindles at idle when hot. Went up to 50psi riding it. 60psi at cold start. Takes more than a couple of seconds to lose the bottom end.
 
Dan1950 said:
All the AMR requires is the Timing cover and the oil pump to do the modification There is no modification necessary to the "cases" other than screwing in a grub screw for the PRV modification. All three modifications, timing cover, oil pump and PRV costs $100

Anti Wet Sump Information – Alternative Motorcycle Repair

www.amr-of-tucson.com www.amr-of-tucson.com
Click to expand...
OK, timing cover is mod'ed not the cases...still needs a fair bit of machining skill & effort to do, which was my point.
 
Tornado said:
OK, timing cover is mod'ed not the cases...still needs a fair bit of machining skill & effort to do, which was my point.
Click to expand...
No, you simply buy a MKIII cover kit from Andover Norton (Part 06.6161) - it comes with everything needed to install on any Commando. It is on the high-pressure side and pretty much stops the normal cause of wet sumping.

Still not perfect but to be perfect you need to go back in time and talk sense to a stupid engineer - while you're at is make a stop a BSA and talk to their stupid engineer as well. :)
 
Tornado said:
OK, timing cover is mod'ed not the cases...still needs a fair bit of machining skill & effort to do, which was my point.
Click to expand...
Not that challenging, a couple 012 x-rings, a BSA check valve spring, a 3/16 ball bearing and an hour or so on the mill... presto
 
Tornado said:
OK, timing cover is mod'ed not the cases...still needs a fair bit of machining skill & effort to do, which was my point.
Click to expand...
$100 plus shipping and it's all done for you.
marshg246 said:
No, you simply buy a MKIII cover kit from Andover Norton (Part 06.6161) - it comes with everything needed to install on any Commando. It is on the high-pressure side and pretty much stops the normal cause of wet sumping.

Still not perfect but to be perfect you need to go back in time and talk sense to a stupid engineer - while you're at is make a stop a BSA and talk to their stupid engineer as well. :)
Click to expand...
$280 plus shipping? How is that a better solution?
 
Dan1950 said:
$100 plus shipping and it's all done for you.

$280 plus shipping? How is that a better solution?
Click to expand...
A better solution is the MK3 timing cover
A cheaper solution is the AMR modification
 
baz said:
A better solution is the MK3 timing cover
A cheaper solution is the AMR modification
Click to expand...
The MK3 valve is a shaft not a ball and prone to hanging up on the sides of the gallery so no seal when that happens, plus you still need to do the oil pump O or X rings mod. So the AMR mods are both cheaper and more likely to work than a MK3 cover.
 
kommando said:
The MK3 valve is a shaft not a ball and prone to hanging up on the sides of the gallery so no seal when that happens, plus you still need to do the oil pump O or X rings mod. So the AMR mods are both cheaper and more likely to work than a MK3 cover.
Click to expand...
I was thinking more of the convenience of the cam chain inspection hole on the mk 3 cover that's why I fitted one on my 750
Plus less down time just fitting a new timing cover
Rather than sending your cover away to be modified then waiting for it to return
Mayybe it'd be best to AMR mod a MK3 cover:D:D
 
baz said:
I was thinking more of the convenience of the cam chain inspection hole on the mk 3 cover that's why I fitted one on my 750
Plus less down time just fitting a new timing cover
Rather than sending your cover away to be modified then waiting for it to return
Mayybe it'd be best to AMR mod a MK3 cover:D:D
Click to expand...
Well my Bridgeport is 30ft from my Norton's, my labour is free and I have only myself to blame if I destroy a timing cover or pump. As for the timing chain inspection port, fit a rubber lined tensioner and a Merc simplex timing chain from the Chainman and after the rubber has bedded in there is little need for retensioning.
 
kommando said:
Well my Bridgeport is 30ft from my Norton's, my labour is free and I have only myself to blame if I destroy a timing cover or pump. As for the timing chain inspection port, fit a rubber lined tensioner and a Merc simplex timing chain from the Chainman and after the rubber has bedded in there is little need for retensioning.
Click to expand...
So… do you offer this service in the U.K.?

Serious question… I’d send you my cover tomorrow…
 
Status
Not open for further replies.
Back
Top