bigbuck

I coukdnt really tell if mine was working in the beginning as well so I premixed my first tank of gas well an kept watching my reservoir until I noticed it dropping to confirm. I never had any lights come on after for me is it leaking?

Loki

iTrader: (1)

The oil light would have to do with your main engine oil. So check that before anything else.

For the Sohn, the omp doesn't pump a lot of oil and it will take it time to refill the lines. Premix your first tank and drive aggressively to get the omp rate up. Obviously not if your oil light is still on though. Keep a close eye on the Sohn oil level.

infiltr_eight

Check your oil level if your oil light is on. If its ok and u have an early model RX-8 u probably have a faulty oil level sensor.

To Clear the Air out the OMP lines start the engine.... let it idle ... remove the vacuum line going to the OMP nozzles from the Acordeon tube ... plug the acordeon side with one finger and the vacuum line going to the OMP nozzles with another finger .... if the car starts sputtering remove the finger on the vacuum line for a moment until its back to normal idle and repeat process until omp lines are full new 2 stroke oil.

Greetings
Thomas

DBH Dark Angel

Thanks guys my oil light turned off. I think I just had an air bubble in the Sohn Adapter but the oil lines on the OMP look to have oil in them now And I threw some in the tank to be safe lol but I have driven almost 100 miles and I think I see a little bit of a drop in the oil reservoir but it is hard to tell ha. The one time I want my 8 to drink a lot of oil it sip's it like a expensive scotch!

intense_27

Have you had any problems with the fuel filter being used for oil? Never had it plug up and restrict flow?

Is this common for people to use a filter?

I'm concerned about oil getting through the filter, especially in the cold (I'm winter driving the car)

infiltr_eight

No. You dont have to use an filter ... if u have a clean oil tank there is no reason for.

He used the filter because he was scared from the shavings in a ebay catch can he used as a sohn reservoir.

Just use a piece of proper fuel line between the reservoir and the sohn adapter inlet. The transparent lines will get hard and brittle after a year or two ... i had one crackin .. its a real mess and dangerous.



Greetings
Thomas

Jcola

I am completely 100% curious on this, but what if you fill your oil pan with nothing but 2 stroke oil?? Money is no object in this case, could this work?

To me it seems that you'd have to change the stuff more frequently then regular 4 stroke. Yes it'd obviously be more expensive, I just want to know how this would work, probably a total catastrophic failure of the engine if I had to guess lol.

Legot

iTrader: (1)

One of the purposes of 4 stroke oil additives are to suspend the contaminants so that they can be removed either by the filter or oil changes. Two stroke oil will just kind of move those down to the lowest point, rather than moving them to the filter or somewhere that they could be removed easily.

It would probably work short term, but since 2 stroke oil has far fewer detergents and dispersants there would be nothing stopping the accumulation of massive amounts of sludge.

It's better to just inject oil from the pan into the engine.

Michael Kaul

Nice diy. I plan to install my sohn adapter soon. My concern is with the catch can method. There are several types of catch cans but the most common and cheap ones are filled with a metal mesh or similar material to help separate the oil from the air before passing the air through the outlet nozzle (this is the intended function for a catch can). Additionally, the inlet nozzle on most styles of catch cans runs about midway down the inside of the catch can whereas the outlet nozzle doesn't. Is the one used in this diy similar?

I'd want to avoid running my oil line from the can to the OMP from the wrong nozzle. Otherwise, even if the can was filled full of oil, only about half of it would get used because this application calls for the can to be fitted upside-down and the tube inside the can would end midway. Also, if this type of catch can does have a steel wooly type separator, the can isn't going to hold very much oil. I'd also be concerned with bits of the separator material flowing down into the OMP.

Here are some diagrams of a common catch can (I've rotated the pictures upside down so you can see how it would apply to this DIY.
http://s44.photobucket.com/user/Scis...tml?sort=3&o=0

http://s44.photobucket.com/user/Scis...=copy&sp=false


Anyone here know more about the type of catch can used in this DIY?

MazdaRX8Mike

Hi Loki
How has the Sohn adaptor worked out for you?
I am thinking of getting one myself...any info/thoughts you can provide would be most appreciated.
Thanks for the excellent DIY.
Anyone else with experience regarding the Sohn adaptor?

Williard

iTrader: (18)

Mike,

Im not Loki however, i have/had the sohn adapter.

It's always a better idea to inject clean 2 stroke instead of used conventional.


Travis

TeamRX8

iTrader: (25)

why?

Williard

iTrader: (18)

Because team, conventional oil was never meant to burn.
https://www.rx8club.com/series-i-tec...-thread-99636/
As you already know.

A clean ashless two stroke similar to idemitsu is perfect.

It would also be a good idea to premix your fuel. Seeing as the oil injectors are for the side seals not the apex seals, premix helps with that issue.

Travis

MazdaRX8Mike

Agreed...makes perfect sense...my concerns are two-fold.
Is the Sohn adaptor capable of regulating the amount of oil provided relative to rpm/engine load...with respect to premix...will doing so have any negative effects on the fuel delivery system...for example the fuel filter (Please bear with me as am just starting my research into this issue).

Legot

iTrader: (1)

1) The OMP does that, so yeah.
2) No.

TeamRX8

iTrader: (25)

Except that a blanket statement was made without any qualifications

the rotary engine is not a 2-stroke and it certainly runs hotter than a weedwacker ...

MazdaRX8Mike

Don't understand...oil is injected for a specific purpose and is not intended to replace the role of the non-injected lubrication system...temperature?...significance?

Williard

iTrader: (18)

Im assuming Teams statement was directed at me.

You are correct i made the statement without ever producing any information to back up said statement.

When you inject 2 stroke oil it still lubricates/cools the side seals as well if not better than conventional oil. While at the same time having a lower flash point in order to burn. You would want an ashless 2 stroke to be on top of the game.

You premix fuel due to the lack of lubrication/cooling of the apex seals. The only way to accomplish this is through premix. (On a Series 1)
^This was fixed on the S2 by Mazda with addition of an oil injector.

https://www.rx8club.com/series-i-tec...-thread-99636/
https://www.rx8club.com/rx-8-discuss...premix-224848/
https://www.rx8club.com/new-member-f...4/#post4533730

Hopefully that'll satisfy everyone.




Travis

TeamRX8

iTrader: (25)

Noobs don't know the difference, sometimes even when you tell them everything. Some oils are not very cat converter friendly. If somebody goes to Home Dumpo and buys the cheapest weedwacker 2-stroke oil they can find it might not end well.

Williard

iTrader: (18)

You are correct Team but if you see my earlier post I suggested something similar to Idemitsu.

I will however try to be more elaborate in my posts to be more precise.

Thanks for pointing it out.

Travis

MazdaRX8Mike

No worries about using weedwacker oil...using Shell Advance Ultra Snowmobile...it's fully synthetic, low ash and JASO FD certified...had a very difficult time finding quality 2 stroke oil...looked everywhere for Idemitsu...no luck...decided on Shell Advance 2 stroke line of oils...but again they too are hard to find...so settled on the one mentioned above.

BTW mixed at 1/2 oz per US gallon and immediately noticed the engine ran smoother...should have done this long ago...have Sohn adapter on order.

Thanks you all for your assistance...much appreciated.

Legot

iTrader: (1)

That's a TWC-3 oil. Their designed for much cooler running engines (snowmobiles, boats, etc) It burns off too soon and dormant lubricate anything in most air cooled or rotary situations.

You're wasting money and not lubricating any better than you were before. The smoother running isn't likely a real thing.

MazdaRX8Mike

The only other oil I can get is the 2 stroke semi synthetic Lucas?

Legot

iTrader: (1)

That's one if the absolute best choices.

MazdaRX8Mike

Lucas it is...I'm in you hands...thanks...changed out the coils/plugs/cables at the same time...is smoother...must be the electrics then...thanks again.