Oil Pressure Gauge...CBS (2018)

[Tornado]

While browsing the Classic British Spares website, came across a Norton specific oil pressure gauge kit at a great price. So I went ahead and grabbed one.

Has a nicely polished stainless bracket to mount under the handle bar clamps ( for MKIII's with the console, there is a version with a simple bar clamp mounting listed for Triumphs that should work).
Oil is connected with the included stainless rocker spindle cover plate. This replaces one of the double OEM plates and yes there are locating tabs for the spindle in the plate.
Will update later with install/functionality assessment.

 

[Interbak]

I’ve been running a similar one I got from British Cycle Supply for a couple years now. Quick and easy install, looks good, no leaks. Very happy with the product.

B

 

[RoadScholar]

If this gauge connects to the supplied rocker spindle cover with a plastic tube that fastens to the two pressure points with a system that approximates "Chinese handcuffs" beware. I had the plastic tube come loose, fortunately I was less than 1/4 from home base. My youngest son, and A&P mechanic turned me onto this site: https://www.aircraftspruce.com/menus/ha/index.html

No more anxiety with all AN (Army, Navy) spec parts. If the gauge you posted connects with some strategy much better than the "Chinese handcuffs" I'd sure appreciate a more comprehensive picture as I'll be needing a OP gauge soon.

Thanks for posting!

 

[JimC]

Would you fly in a reciprocating engine powered airplane with no oil pressure indicator?

I put running with no OP gauge along with the soldering wires on a motorcycle and continually changing crankshaft seals on a Norton twin while refusing to install a reed valve breather.

 

[htown16]

Interbak, curious what sort of pressure your bike runs say at 3500 rpm hot and hot idle?

 

[JimC]

Interbak, curious what sort of pressure your bike runs say at 3500 rpm hot and hot idle?

My experience after running 90 mph for 60 miles during +80 degree weather, the OP gauge needle hardly moved off the peg at idle, while showing +30 psi at ~3500m. Certainly, that is no reason to not have an OP gauge, if that’s what you are intimating.

 

[htown16]

No, just wondering. I have a temporary test gauge and was seeing about 35-40 psi at 3500 with the engine warmed up. Just trying to see what others are getting.

 

[JimC]

No, just wondering. I have a temporary test gauge and was seeing about 35-40 psi at 3500 with the engine warmed up. Just trying to see what others are getting.

Rule of thumb: 10 psi per 1000 rpm. Except when the oil is real hot. 10 psi at idle with warm oil.

 

[Tornado]

Thx R.S. I think these are as you describe as I can not see any threaded type compression mechanism at connection points, just a push in of plastic line to connectors...I suspect it somehow squashes through some type of one way wedge clamp.
I will keep a close eye on it.

If this gauge connects to the supplied rocker spindle cover with a plastic tube that fastens to the two pressure points with a system that approximates "Chinese handcuffs" beware. I had the plastic tube come loose, fortunately I was less than 1/4 from home base. My youngest son, and A&P mechanic turned me onto this site: https://www.aircraftspruce.com/menus/ha/index.html

No more anxiety with all AN (Army, Navy) spec parts. If the gauge you posted connects with some strategy much better than the "Chinese handcuffs" I'd sure appreciate a more comprehensive picture as I'll be needing a OP gauge soon.

Thanks for posting!

 

[baz]

Thx R.S. I think these are as you describe as I can not see any threaded type compression mechanism at connection points, just a push in of plastic line to connectors...I suspect it somehow squashes through some type of one way wedge clamp.
I will keep a close eye on it.

Maybe fit an oil pressure switch/light to let you know if the line to your pressure gauge has failed!
Sorry couldn't help myself, seriously though a warning light is a good addition ,I have the "madas" one on my Norton it's very good

 

[Onder]

Id say in normal weather I get 4o-42 at 3500. Ten less in blistering hot weather. Running 20-50.
Pump has about 30k on it. Engine 4k. Pressure line off the head.

 

[concours]

Thx R.S. I think these are as you describe as I can not see any threaded type compression mechanism at connection points, just a push in of plastic line to connectors...I suspect it somehow squashes through some type of one way wedge clamp.
I will keep a close eye on it.

Are you all talking about push connect fittings?
Edit: I just looked at the photo above. Those ARE push connect, widely used in industrial applications for AIR, not, hydraulic.

 

[JimC]

Actually, the reverse osmosis water filter I have has many push connections. Water pressure being somewhere around 30 psi.

 

[cyclegeezer]

Actually, the reverse osmosis water filter I have has many push connections. Water pressure being somewhere around 30 psi.

And Sharkbite and its clones are widely used for water plumbing, they are similar push connectors.

 

[JimC]

And Sharkbite and its clones are widely used for water plumbing, they are similar push connectors.

The connections I'm talking about are for 1/4" plastic line, similar to a 1/8" plastic line used for an oil pressure guage.

 

[madass140]

And Sharkbite and its clones are widely used for water plumbing, they are similar push connectors.

Those style of fittings are for pressure situations usually air or water, not for fuel lines for your Amal carbs on your Norton as
someone was trying to market them as quick release fuel lines!!!!

 

[Interbak]

Interbak, curious what sort of pressure your bike runs say at 3500 rpm hot and hot idle?

I did a bunch of reading after I installed it and found very little info on what to expect. Eventually I found an article that stated you should expect about 10 lbs per 1000 RPM at operating temperature. That’s what typically see, a little less on really hot days.

B

 

[cyclegeezer]

The connections I'm talking about are for 1/4" plastic line, similar to a 1/8" plastic line used for an oil pressure guage.

Yes, I should have been more specific, I was only referring to their common method of sealing against pressure.

 

[Tornado]

Reading these responses...are y'all saying the push in type connectors on my CBS gauge are not reliable in this application or are they reasonable? In my opinion, they shouldn't be much worse than the stock head feed banjos with no barbs...the lines just slide over the pipes (but with some considerable force ;-).

 

[xbacksideslider]

I doubt that tech inspectors for any racing organization would allow push in/Chinese handcuff connectors for any oil line. That said, I've used them on a turbo car, safety wired, for 50/50 water/methanol injection without any problems.