Oip pressure adapter

[planedick]

I hav three more oil pressure adaptors for the XS & XJ engines.


$20 each. Made from Stainless Steel for resistance to corrosion and easy machining. Special sized restrictor hole same as original bolt to regulate oil to the primary shaft bearing. To complete the setup you need a 90 degree 1/8" St El and a guage. I can get them for around $12.

[Schming]

Oil Pressure Adapter

Hello Richard,
Would these allow enough pressure, to be accurate, in a fairing mounted gauge ?

Thanks, John

[planedick]

Fairing mount

It would still be accurite, but the long tube from there to the fairing would be a deal killer for me. To do that just get an electronic guage from JC Whitney or somewhere and put a "T" there the sending unit is and install an electronic sender for the fairing guage.

[Schming]

PM Sent

I am going to supply my own gauge and plumbing to it. I was just wondering if the altitude of the gauge would affect accuracy. Also, I would like to stay away from adding any electrical items if possible.
Count me in for one adapter bolt, no fitting ,no gauge please.

Thanxs

[planedick]

Altitude

Being from th northeast, I wasn't aware that there were any places near Pittsburgh with much "altitude". I can't see why altitude would effect the reading as it's a closed system and besides, the guages you get are not calibrated for accuracy anyway unless you pay lots and get the glycerin filled type. The adaptor is designed to be easily seen while riding where I mounted mine.

[Schming]

Head

The altitude AKA "head", I am referring to is the actual height of the gauge mounted in the fairing which is approximately 2.5' higher than where Your gauge is mounted on the engine. I will most likely be using liquid filled gauges.

Only the best for "Street Queen"

[planedick]

Height

The height to creat a problem like that would probably be around 5000 feet. More to the real problem would be the fact that the oil in the long hose to the fairing would cool off considerably and if the line is small would restrict flow causing bad readings. The gage on the adaptor is easily read from the riding position.

[Schming]

EZ - read

I will probably try both positions with the gauge in this order:
1) Engine mounted as shown above in Your post, most likely the most accurate.

2) Fairing mounted, to compare any difference in accuracy.

If I get the same reading, as the engine mounted position, in the fairing I will then commence to drill the hole and mount the gauge in the fairing. I prefer to know what's doing what at what RPM's, and this way I can monitor all the gauges.

Oh,by the way, what is the average oil pressure p.s.i. in a healthy Elevens' engine ?

[motoman]

Reading going to be the same no matter where gauge is located. Is no different than an automotive application whether you run a manual gauge with several feet of copper line or electrical sending unit. Nothing magical here just because it's installed on a scoot.

[planedick]

Oil pressure

Pressure is relevant. Temperature, RPM and other things will change it. The actual pressure depends on what pressure is on the spring in the relief. Mine has 42 lbs when it's cold and at higher RPM's when it's hot.

[Schming]

Reading going to be the same no matter where gauge is located. Is no different than an automotive application whether you run a manual gauge with several feet of copper line or electrical sending unit. Nothing magical here just because it's installed on a scoot.

Okay...yes I'm probably overthinking this...Thanxs for the headsup

Pressure is relevant. Temperature, RPM and other things will change it. The actual pressure depends on what pressure is on the spring in the relief. Mine has 42 lbs when it's cold and at higher RPM's when it's hot.

I agree, that's my reasoning for the fairing mount on the gauge so I can get accustomed to "what" the engine is doing "when". Therefore I can note changes as per riding style or load put on the bike.
My engine has 20k easy miles on it so when I get it put together and this gauge mod done I'll let you know how many p.s.i. I'm getting.
Your figure is a good baseline, I hope I get at least that.

Thanxs, John

[planedick]

Just remember

It only takes a few ounces of pressure to float a bearing, and the idiot light on the bike is set at somewhere around 5 lbs or less.

[motoman]

To be more precise...........takes 7psi oil pressure to "hold" a bearing......

[Schming]

It only takes a few ounces of pressure to float a bearing, and the idiot light on the bike is set at somewhere around 5 lbs or less.

Does this mean that when I start the engine pressure builds from the oil pump to activate the oil pressure switch and shut the indicator light off at 5 p.s.i. or so ?

If that is the case, the light would also come on only when the pressure in the engine, while running, drops below the 5 p.s.i. or so, correct ?

[natemoen]

That is correct.