Relisys190

iTrader: (4)

I've gone nearly 2200 Miles (i'm over due for my oil change)

and i still have not burned any oil. Didnt someone/somewhere say that the rotary burns a quart every 1500 or so?

Man, i'm so glad... motors broken in.. running like a cherry

OLD motor (205,000) 5-600 miles 2 quarts low YUCK!

-Markus

Black13B

iTrader: (1)

your MOP is probably not working if your not burning oil..

but theyre may be a special exception in rebuilt engines that im now aware of..

run premix as a precaution until you get it sorted out (i would at least)

1987RX7guy

iTrader: (3)

the OMP system is what uses the oil. I forgot how much it should be but by 3k miles after oil change you should be missing like a quart.

Santiago

Fingers

i usually end up missing 1/2 to 1 quart per oil change.

1987RX7guy

iTrader: (3)

https://www.rx7club.com/forum/showth...hreadid=178076
Time for you to read my friend

Black13B

iTrader: (1)

premix still kind of scares me..

mazda took time to design the MOP system, even though originally it was going to be running premix, correct?

so, (considering this is mazda), since they decided against premix and decided MOP and created a system, i would imagine that they would have designed a system for the rotary if it were to be running premix, know what i mean?

like mazda wouldnt say "ok were going to use premix. how are we going to make sure it lubricates properly? ah **** it, we will just keep throwing 2 stroke oil in the tank and that should be fine."

thats more of a GM thing..

comments anyone?

1987RX7guy

iTrader: (3)

The only reason I see that MAZDA decided on that was because it is harder to sell a car that you have to run pre-mix with compared to a car with OMP system on it. Pre-mix's only draw back is having to spend an extra minute at the pump. It actually saves you cash. I suggest you take the time to read my thread all the way through.


Santiago

Black13B

iTrader: (1)

i understand mazda's sale logic with the rotary.. but im saying lets turn the tables back and say mazda decided to GO With premix... i would imagine they would setup the fuel system with something special so the premix is most efficient.. knwo what i mean?

ok - off to the thread..

Josepi

Personally, I think the OMP design came from a tendancy of the majority of car owners to be...careless. If all gasoline sold came with a mix, then sure, we may not have the OMP system.

1987RX7guy

iTrader: (3)

what exactly do you mean MOST EFFICIENT??

Black13B

iTrader: (1)

like.. not just spraying the fuel/lubrication at the rotor face (in logic) know what i mean?

and not you know.. prematurely clogging the fuel filter, etc etc..

mazda is smart - i would just imagine they would have a different fuel system setup if they were planning on people putting premix through it..

just thoughts of mine though im not looking for a big arguement...

Turbonut

iTrader: (1)

If this is of any interest-Purchased my '89TII new in May '89 and have changed the oil religiously every 2800/3000 miles. Have need ever added any oil between changes. In fact the oil level has never been close to the add mark.

Black13B

iTrader: (1)

exactly!

thast why i think if mazda decided on premix, then the fuel system setup / fuel injection setup may be a bit different as a result..

1987RX7guy

iTrader: (3)

NO argument just want to help you see the light

Umm ok to the first part of your question-spray pattern and coverage=compared to the stock oil injectors the fuel injectors do a better job. since the fuel injectors are meant to disperse the fuel(and two stroke) over the entire volume of air in the chamber the full width of the housing is able to receive lubrication and nor just the middle of it. If you ever see a used rotor housing you will see what I mean.
Second part-clogging the filter or fuel injection components= There is a newer type of two strok oil that has the TCW-3 certification which makes sure of two things(that i know of) it makes sure that the product can stay suspended in fuel for an indefinite time period(basicaly for ever) and it also makes sure that it is safe for fuel injection systems hence it will not harm our fuel system. If anyone knows or has proof otherwise please let me know.

I hope that answered your questions.

Santiago

Black13B

iTrader: (1)

actually that was handy

i have a rotor and rotor housing sitting on my desk as display..

im curious about premix, (and i would love to remove my MOP ) but obviously im gonna need a bit more coaxing..

dont worry though.. rather than hijacking relisys' thread any further ill just do some searching and reading

1987RX7guy

iTrader: (3)

:END HIJACK:

Relisys190

iTrader: (4)

so basically.. all in all, when it gets down to it. Premixing is better?

I've seen rotor's before. the large area's of carbon build up (in one spot right in the center) is from the Oil injectors right? Well, i guess i could always try it. Just can't forget to Premix. that's all, lol

Once you premix. isnt there some side effects?> IE smoke from exhaust? any strange smells i should be worried about? umm. basically one bottle per full tank right? what if you mix too much?

too little? any answers would be great. thanks guys

-Markus

Relisys190

iTrader: (4)

NO NO.. please hi jack away. i'm into this premix thing now too.

-Markus

1987RX7guy

iTrader: (3)

:RE-HIJACK:

Ok well first before you do any modding to your OMP system make sure you will be commited to your car enough to spend time buying two stroke oil and remembering every time at the pump.

That said on to your questions-First YES pre-mix is better it creates less carbon buildup in the engine and lubricates well. Second pre-mix if used in to high a ratio will creat smoke but with what I recommend you will probably never see a puff(unless your oil seals are going). Too little pre-mix may cause your engine to loose Miles from its life
You should use at least IMO 1 ounce per gallon of fuel pumped. Basicaly what I do is buy coastal two stroke(TCW-3) and wait until my fuel light comes on(about 300 miles from full tank) then I pour 16 ounces into my tank before pumping gasoline(this helps to mix it in with the fuel when you pump the 14 or 15 gallons of gasoline in there ) I usually buy my two stroke in quart or 16 ounce sizes. If you have any other questions shoot them at me.

Santiago

Relisys190

iTrader: (4)

i am committed. Acctually every time i stop for gas i check my oil

I drive 100 miles to work and back each day, so i'm pretty religious when it comes to fluids that go into my car

Do you like premix? I wouldnt mind it, id just buy cases or like 5 bottles at a time, and keep 2-3 bottles in my car always.

I guess this will be my weekend project

How about premixing now.. and than removing the OMP later on.. maybe a couple of weeks. or will that just cancel out premix leaving on the OMP. **** i'm confused

:Continue HIJACK:

-Markus

1987RX7guy

iTrader: (3)

Ok you drive a lot so you may benefit from the small mileage increase you get from running a tad leaner.

How do I feel about it? I love it I know that I am helping my car's internals stay cleaner and that I now don't have to trust 16 year old OMP system. I personaly buy about 6-8 bottles(quart sized 32oz ) at a time and keep one in my car which is good for two tanks. About running pre-mix right now-SURE you can just run it is a smaller ratio I would say about 8oz per tank so you don't get smoke since the OMP is also adding the regular dose of oil.
You can most certainly do this in a weekend all you need is the bolts, bock-off plate(you can make one yourself), RTV(ULTRA BLACK is good), and a vaccume cap for the UIM where the spider hooks up.

Any more?? I still got 30 min till the end of work.

Santiago

PS- feel free to ask me for help I will be glad to aid you on this or anything really.

Relisys190

iTrader: (4)

no, that's prolly it, i'll get on my pops computer this weekend and do this little project. it will give me a chance to pull my manifold and clean up the engine a little (degreaser ahhh!) I will save your thread about premixing. thanks for the help man..

-Markus

-p.s. Now i gotta get my home computer fixed DAMN!

1987RX7guy

iTrader: (3)

No problem man. I would also suggest cleaning the auxilary port sleeves if you suspect they are stuck or whatnot.

Always happy to help.

Santiago

Relisys190

iTrader: (4)

well.. i think my sleeves are ok.. when i was installing my ACV block off plate yester day, i also removed the port accuators (pump things) i took them off to paint them. cause they were terrible looking .. i rotarted the shaft that normally connects. and it turned pretty freely. The front one turned with no problem. The rear one stuck a little, i had to force it slightly. BUt i get a pretty smooth power band, once i hit 4k it's all sweet.. and suddenly i have no more 3800 hes. man i tried everything to get rid of that. 2 weeks of cleaning and regrounding.. and finally just now it went away the ACV couldnt do it right?

i dunno
-Markus

1987RX7guy

iTrader: (3)

COOl

I was just adding that just in case.

I am not sure if the ACV can affect acceleration. I myself want to start re-grounding my wiring but I don't have cash at the momment.



Oh and with this post my avitar will be in this thread a wopping 10 times!!!

WOOT!