Oil Pressure Sensor (2016)

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madass140

madass140

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One of the members here suggested to me that this may be a good item ,
A small oil pressure switch/sensor, I imagine taken off the rocker oil feed banjo at the crankcase with 2 wires running up to one of the
headlight indicator bulbs. All it would do is tell you that you have oil pressure , so its over to you for discussion.
Do you think that is a good place to tap from?
Do you think there is any real advantage , as its unlikely that a lack of oil supply would happen.
But I guess just seeing that little light come on at start up would be nice
your thoughts
Don
 
Don
The light should act like an idiot light. No oil....it lights up to tell you. I like the idea. Didn't some Triumph bikes do something like this?
PS. I just installed an oil gauge on my interstate 850. But a light would catch your attention better.

Cheers,
Thomas
CNN
 
CanukNortonNut said:
Don
The light should act like an idiot light. No oil....it lights up to tell you. I like the idea. Didn't some Triumph bikes do something like this?
Cheers,
Thomas
CNN
Click to expand...

That's where the idea came from, my T140 idiot light. I'd much rather this than fuss with an OP guage and related plumbing... plus the cost on a quality OP unit is a bit too much for the benefit (IMO)

I think the cost would be the tipping point, as most of the gauge kits I've seen run a couple hundred at least. I've seen loads of banjo bolt OP switches for $50-$75, but nothing with a BSF thread.
 
Thomas , you maybe right, but I dont think that would be an issue in manufacture.
 
acadian said:
CanukNortonNut said:
Don
The light should act like an idiot light. No oil....it lights up to tell you. I like the idea. Didn't some Triumph bikes do something like this?
Cheers,
Thomas
CNN
Click to expand...

That's where the idea came from, my T140 idiot light. I'd much rather this than fuss with an OP guage and related plumbing... plus the cost on a quality OP unit is a bit too much for the benefit (IMO)

I think the cost would be the tipping point, as most of the gauge kits I've seen run a couple hundred at least. I've seen loads of banjo bolt OP switches for $50-$75, but nothing with a BSF thread.
Click to expand...
Tell that to Pierre M. :roll: He toasted his 850 bottom end :( ... and :oops: ... and :x ... and :? ...including the cylinder barrels during our Dark Cafe Run this spring. I think he would have preferred anything....anything else useful than "the bent shifter award".
IMHO
Cheers,
Thomas
CNN
 
Later model BSA's have them. Cause for a lot of anxiety when they flicker on and off at idle after a hard run on a hot day.
 
madass140 said:
Thomas , you maybe right, but I dont think that would be an issue in manufacture.
Click to expand...
Don,
Yes it could work just like the Red Idiot light for the alternator/ battery light. Its ON when you click on the ignition switch. Then once the engine is running the light would die out and indicate oil pressure present. If things go south in the oil department or the light continuously stays on then its time to investigate what is up. "Oh yea I forgot to turn on my anti sump valve switch." :mrgreen: Don't get me started.
Cheers,
Thomas
CNN
 
I think it is a worthwhile mod. Not as much info as gauge, but no hassle with pressure lines that must be isolated from vibration and flexible to accommodate the steering yoke, and a potential source of leaks.

The swtch/sensor must be mounted in a vibration proof manner. A mass that is cantilever mounted is a fracture waiting to happen.

Slick
 
Oil Pressure Sensor (2016)

something like this we had in mind, of course with the appropriate banjo bolt
 
htown16 said:
Later model BSA's have them. Cause for a lot of anxiety when they flicker on and off at idle after a hard run on a hot day.
Click to expand...

Could also be a sign of pump getting ready to go south. My T140 flickered at idle, installed a morgo pump and the flickering went away. I like the simplicity of the light, goes on with key turned.. goes off when she fires up. No fuss. Later Triumph's use a standard auto switch with tapered thread, can be had at any auto parts store.
 
acadian said:
Later Triumph's use a standard auto switch with tapered thread, can be had at any auto parts store.
Click to expand...

If you mean Meriden Triumphs (twins and triples and also BSAs) then the early models fitted with oil pressure switches (from '68) had (1/ 8" NPT) tapered thread switches.
Later Triumphs had parallel 1/8" NPS thread switches although there has been some controversy over exactly when parallel thread NPT switches were introduced, according to one Triumph Service Bulletin it was January 1969, although parts suppliers often disagree.



https://www.classicbritishmotorcycles.c ... lia-t.html
https://www.classicbritishspares.com/pr ... oif-750-uk
https://www.triumph-spares.co.uk/cat_de ... e%20switch
 
CanukNortonNut said:
madass140 said:
Thomas , you maybe right, but I dont think that would be an issue in manufacture.
Click to expand...
Don,
Yes it could work just like the Red Idiot light for the alternator/ battery light. Its ON when you click on the ignition switch. Then once the engine is running the light would die out and indicate oil pressure present. If things go south in the oil department or the light continuously stays on then its time to investigate what is up. "Oh yea I forgot to turn on my anti sump valve switch." :mrgreen: Don't get me started.
Cheers,
Thomas
CNN
Click to expand...

Yes, that is standard automotive oil pressure light design for decades. Self test. Great idea for Nortons. I was thinking of it this weekend as I rode... (In addition to my gage) after one of the guys in our group ran his BSA low on oil and seized it. :shock:
 
I went with Old Brits for the double banjo bolt.
http://www.oldbritts.com/54_800000.html B - (54-800309) Double Domed Banjo Bolt, Rocker Feed, -3, Stainless $10.25 each).

Ran SS covered teflon line up to a gauge. Using -3AN line is the trade off between size and cost. Id prefer -2 for the line
but it seems to be harder to find and more expensive when you do.
I like the idea of an idiot light mostly to remind me to turn the key off rather than to
warm me of impending disaster. The reason being I find lights to be hard to see daytime. Having both would be a good idea.

It may well be that affordable (cheap) gauges are not entirely accurate but good enough for my purposes. If they are a bit off
either way so what, it is deviation from the norm that matters for me.
 
Some time ago Matt Spencer mentioned that the top cap and pressure indicator button from early Triumph twins will thread onto the pressure relief valve of the Commando engine.
 
madass140 said:
it may never happen but I'll do some research etc
Click to expand...

Don:

I have seen that type of switch somewhere, but it had a10mm hole in the lug. That seems to be a bit large for the 5/16 banjo bolt. Are you planning to provide a special banjo bolt?

Slick
 
A while back I was looking at a digital oil pressure gauge to use on my Seeley. That would look really classic, just like those historic racing bikes that have full go-kart electronics mounted on the top yoke of their forks ? (It appeals to my sense of humour. ) How would you be turning up to the Banbury Run with a digital oil pressure gauge fitted to your 1916 Triumph ?
 
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