Rocker oil line actual pressure range ?

If one is to fit an oil pressure gauge onto the rocker oil line, what pressure range can we expect in normal operation ?.

cold: shim your PRV to 60 psi
hot: 40 - 60 psi

anywhere from 50-60 psi cold at speed to 0 at hot idle.

So would you suggest a 0-100 PSI or 0-60 PSI gauge ?.

I'll have to look the next time I start the bike but I think mine reads as much as 70 cold, Does that seem high? It almost never goes down to 0 at idle even when fully up to temp. Then again I am using a 20 year old S&W Gage, I supose it could be off a bit.

My $.02
100psi gauge minimum.
I have a 160 gauge on my bike and I have, in the winter, shown 125psi in my bike.

Have fitted a rocker oil line pressure gauge,it indicates ( hot ) between 10-40 PSI, happy enough with that, I am pretty certain that is not indicative of the actual oil pressure in the engine, it just shows me oil is flowing.

I have the Venhill stainless oil lines, there would be quite a pressure drop over the two rocker feeds, then the oil flows to the gauge.

Will post photos shortly.

Hehehe, oh yes it is and your expressing owners' mood that made Norton remove gauges from their offerings. Its hydraulics for gosh sakes so any continuous paths of oil under pressure will at same PSI. Its not the oil pressure lubing the engine parts anyway, thats just to make sure they are wet enough to have the speed of part surf them on oil wave/wedge. Crank sling help the rod shells too ease you mind flying along far from home. In other words yours PSI as normal as they get and better than many. Just get used to its patterns/temps and if deviates much then worry a bit as most seizure give little evidence and then practically no time to react anywho.

I'll fit a 100 PSI gauge on Peel and if pegs the gauge I'll decrease the oil grade.

Purchased all the bits at a local hydraulics shop, $75, drilled out a 5/16 BSF bolt for the head oil line and modified a rubber door stop to mount the instrument into my unused steering lock hole.

Went with 140PSI, will try to replace it with a 60 PSI gauge with a black face later.

Hobot,

Are you trying to say flow rate in a open loop system does not effect line pressure ?.

What happens when you are in the shower and someone turns on the tap in the kitchen ?.

Very clever DIY hose. I've not yet figured out how to do that on my special yet, sure glad its DIY connections.

Take your old bits to the hydraulics shop, the banjos are apparently quite common, you will probably have trouble finding the BSF bolts.

I got a kit of BSF bolts off Ebay last year.

I'm saying its been researched by better than me to find oil gauge at head or pump out let read the same with such low head height differences compared to upper story shower head vs basement. The facts are long known if oil is returning to tank then you are fine as rest of Norton-doom, even if gauge does not show any PSI. It bothers me as much as any to state this but had to accept it as fact.

The same thing happens with Harleys: on most after-market oil pressure gauge kits, there is a warning in the instructions stating that, when warm, the gauge can read very low (0-10 psi), but that is normal. As long as oil is there, and flowing, that's the key. It tends to freak people out!
Mello

Very happy with the gauge.

30-40 PSI cold idle, about 10 at hot idle, max 50 ish cold at 3,000rpm.

What I find more interesting and maybe useful than PSI is degree's F.
Not good to idle engines as ain't enough parts speed to keep oil wedge and its the worse state case of blow by into oil moisture which is corrosive and chemically eats friction surfaces faster than mechanical wear.

Hobot,

Here is the part I used for the banjos, 8mm banjos, 5/16 copper washers and the cleared sheathed stainless braided line.

I have ordered a 60PSI gauge, will give you some data when it is fitted, Temperature versus PSI, I use Caltex 20W50.
http://www.debrix.com/60-PSI-Oil-Pressu ... -87-mw.htm

Very cool josh, I'm having to learn what can hook to what to plumb oil gauge and cam feed and piston oil jets. I've already resorted to JBW to adapt a hand full of various forced matings. My big mystery so far is how to neck down from head pressure tap hose to the tiny tube to the gauge. I've not seen all the gauge hose options, just the 1/8" plastic tube so far. Harley may have em for direct hose hook up but ain't looked at them that close yet. I proud to say Peel will have a handful of HD's items as is.

One option Sir Eddie told me on discussing where to tap a gauge he said to finishing drilling through one of the head steady bolts into oil galley and then banjo bolt it. Peel is going to have so many hoses and tubes I'd prefer to just send one oil line to a cross drilled head and then tap the gauge on other side with single stack banjo instead of dual stack sealing issue or dual nipple banjo aiming hassle.

On ebay, these have the bends you'd need for the rocker feed lines :

http://www.ebay.com.au/itm/Venhill-Brai ... 1e65b7938e

http://www.ebay.com.au/itm/3-Stainless- ... 20bb91699d

The olive type connectors are usually UNF threads.

You do not need to neck down, its all the same size, the challenge you'll find is connecting the gauge, some gauges are 1/8 BSP and some are 1/8 npt, the same adaptor will often work as they are tapered threads and only one TPI different ( most adaptors are NPT ).

The stainless braided lines and olive type connectors are rated to somewhere in the range of 1500 PSI.

Certain you'll be able to find fourway connectors etc etc or make up a banjo bolt like mine......

Hmm, this ain't completely new ground to me but it still makes my head swim trying to conceive what will hook what up - when I don't seem to have a grasp of the gauge itself fitting. Part of my source of confusion is past Peel had a Smith dual dial gauge - PSI + temp. Its 1/8" tube was all there was to hook to pressure. I think i've about talked myself out of another quaint British icon that just ain't fit for next Ms Peel. I may end up with a 'puter tablet for all displays so all senders would be electric and maybe rather tiny by my time to buy em. Ugh I hadn't considered Trixie up to right this instant, that Smith gauge would be acceptable non factory addition, so I still have incentive to figure this out. Don't have the gauge at hand but it can only accept the 1/8" plastic tube, likely a slip on barrel compression fitting. I'll order a hose fitting and see if it can adapt. Don't think I've not considered cold welding up a mule fitting and be done with it. I can fill ya head with co-enzymes and metabolic errors but its fumble and fuss to keep the tread forms straight in brake, fuel, oil, hydraulics, brewing, pressure tanks, refrigeration, plumbing and marine electrical, while planning and shopping.