I am curious if all the lines that come out of the omp (clear tube lines) should be full of oil... I cant see that they are full of oil so I was just wanting to know if they should be.

 

They should be but they also sometimes get air bubbles in them. Nothing to be alarmed about, though.

 

I cant imagine that the oil would change while in the pump so I know that my 2 stroke hasnt been hitting there, bc if so the oil lines would be blue and not the normal color.

I also noticed that one of Kahlens omp lines doesnt even have oil in it.

 

Thanks for the help. I know have a project, I just have to get my hands on a vacuum pump.

 

I just read through some other threads and it seems like we should have some kind of flow of somewhere around 1 qt ever 1k miles or so.... Well I am NOT getting anywhere close to that kind of consumption.... I will be taking the car apart this evening to see what is going on.... I have a new gasket for the omp bc I think I am getting a small leak there. Also, I am not seeing the oil in the four lines that go from the pump to the motor.

I am to say the least.

I drive highway miles to work. about 25-30 miles a day.

 

Yeah my consumption has always been high that is how I noticed it right away and increased my premix amount. Usually on our 300 miles canyon runs I typically use almost half a quart and I noticed I hardly used any so that told me something was wrong.

 

well, so much for going out tonight. I will be covered in oil instead

 

Here is the best "pic" I can give you for a S1..

Edit: BTW If you have to replace the S1 Specific Nozzles they are $59.00 Each (N3H1-14-631B)
Also the WASHERS between the Banjo/Injectors are Copper ($1.65 each 9956-21-000 by qty 8)

 

That price is a joke. Of the dozens of S1 oil 'nozzles' I've crossed paths with before tossing them in the garbage can, all of about 4 of them passed the 'fsm' leak test. (These units were uninstalled off of engines that required rebuilds so needless to say approx at least 60k miles.) Of those 4 injectors that 'passed' were borderline at best. Don't ask about the RX7 units.

Can someone school me on the difference between utilizing the sohn adapter and premixing? Is it simply 'ecu' controlled metering? I find that the oil injection nozzles seem to be a unreliable part of the lubricating puzzle. I have yet to really test it, but they could theoretically become inoperable and at worst boost leaks for FI applications?

 

all the sohn does is to allow a "clean" oil to be supplied to the omp. The omp will not have access to the engine oil--only to a separate tank you install to hold the oil of your choice.
Since I change oil every 2-3 K miles and use a high ZDDP brand--i never have seen the use for one personally. I do wonder if the 2 stroke oils that people use when they add the Sohn has high levels of ZDDP?
Its nice to have but imho it is not life or death. I think it would be better if it could supply a pressurized oil supply to the omp--.
Yall do know the oil "Injectors" can be drilled?
OD

 

Thanks ASH, I am wondering if I should just replace them then. I have 118,000 miles and I am assuming these are the same original oil injectors transferred from motor to motor. Or are they new with the rebuilds?

 

Well, If I ever get cams and exhaust valves in my rotary motor, I'll take it under recommendation.
And for those of you that still have a CAT, uh, yeah. lol

As I noted in the other thread, the OMP is a positive displacement pump. So, neither of those suggestions have any merit.

 

hmmmm

 

The only thing I can suggest with 2-stroke is do NOT use anything that mentions to be specific for Marine use. The primary reason being the largest part of the oil's formulation is for environmental protection since boats or other marine engines usually end up leaking oil into the water in small amounts. The idea is to make sure the oil does not harm marine life.

At the least you want a multipurpose oil but the best choice would be 2-stroke designed for air cooled engines like dirt bikes, snow mobiles and chain saws. The oil is formulated more for how the rotary engine uses it and also is designed to prevent carbon buildup on exhaust ports.

Injecting fresh oil has major advantages compared to engine oil for two major reasons:

First, 4-stroke oil is not designed to burn in a combustion process while 2-stroke is designed for just that purpose.

Second, the aspect of high ZDDP was something that I thought was necessary at one point however as I poured through the physics of lubrication and oil formulation it became apparent that ZDDP is only necessary in situations where metal on metal contact is a guarantee. Flat tappet cams, for example, are that specific situation. The design of the cams would provide so much pressure that it would almost always force oil out when the cams made contact. No modern car has this problem.

If you're choosing your oil based only on the boundary layer lubrication then you're not running the right oil.

Is the sohn adapter necessary? Not exactly since a small minority of RX8 owners use it. However, I do believe that it provides advantages that are well worth the $100 cost. It's one of those mods IMO that sells itself.

 

ZDDP poisons the CAT and in amounts over 14 PPM actually causes wear.

 

As far as I know they (Mazda Dealer) reuse your original Injectors, and yes I think I would probably replace them.

 

ok.

 

Could you elaborate on how this pressure delta is acquired and where?

Under boosted applications, doesn't engine vacuum turn into positive pressure relative to atmos?

 

I verified with our local Tech/Member here, that they do in fact transfer the old oil injectors to the new reman motor.

 

Depends on where one measures such.
Hint: bypass/blow-off valves moderate this so we can better tune the engine and keep from damaging the turbocharger.

 

Nothing wrong with that provided they follow the FSM, which we at BHR certainly have no such limitations.

 

I asked, they don't get tested at all, they just pull them off the old motor and screw them in the new one. Not sure if they are supposed to test them or not.

 

Hmmm... Ipac (mazda dealer) said they replaced one of the oil injectors on my last replacement engine as it tested "bad".

 

How would the oil pan be pressurized? I could see on a piston engine, since some exhaust gas can get by the piston rings. With the way a rotary is made, wouldn't everything stay in the irons or go out the exhaust port? I'm not sure how the oil pan connects to the rest of the engine, so forgive me if I'm just being a re re.

 

^+1, although I don't think the OMP gets its oil from the pan, does it?