Originally Posted by MazdaManiac
(Post 2796386)
Preliminary exploration into the subject has so far revealed that the metering oil is still controlled by only one load-based and one throttle-based table.
So, any difference between the two pumps will be accomplished by the pumps themselves. Also, why would they go for 2 pumps instead of one? They are downsizing on the injectors...maybe to pay for the extra MOP Cheers Andrew |
OK, so I'm clearly not an expert on rotaries, but in regard to the 2 EMOPs, maybe Mazda have been doing some studying and analysis of the RENESIS over the years and have noticed that the two rotors/housings exhibit some differences in wear or heat issues over time.
By having an individual EMOP for each rotor/housing, maybe they can account for differences between the two (dynamically, precisely tailoring oil flow across all 6 injectors) that may not be possible with one pump? By that I mean, for example, maybe for some particular load/throttle combinations, the rear rotor is being metered, say, 4% more oil than the front rotor. Also, hooray for this thread + sticky! |
Thats what I would have figured, but based on MM's post about this, I would have assumed that in order to meter the pumps independantly you would have 2 seperate tables which they dont.
Also, SII only has 4 injectors ;) Cheers Andrew |
Originally Posted by auzoom
(Post 2797196)
Thats what I would have figured, but based on MM's post about this, I would have assumed that in order to meter the pumps independantly you would have 2 seperate tables which they dont.
Also, SII only has 4 injectors ;) Cheers Andrew |
Has anyone verified that it is actually two physical MOPs?
I haven't. I only know about the PCM end of it. |
You didn't see this from earlier in the thread,,,? Courtesy of Ash8
https://www.rx8club.com/attachment.p...1&d=1230955587 |
Erick - I sincerely want to thank you for that excellent technical contribution.
Unfortunately, I was not aware of that particular technical drawing or its presentation here on this forum. I consider this elucidation of the subject to be most welcome and the clarification of the matter is, in my view, absolute in light of this particular bit of added information. |
When he says it like that I don't know whether he's being sincere or sarcastic. It's the exclamation point at the end.
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Originally Posted by Easy_E1
(Post 2797522)
When he says it like that I don't know whether he's being sincere or sarcastic. It's the exclamation point at the end.
Edited. |
Originally Posted by MazdaManiac
(Post 2797519)
Erick - I sincerely want to thank you for that excellent technical contribution.
Unfortunately, I was not aware of that particular technical drawing or its presentation here on this forum. I consider this elucidation of the subject to be most welcome and the clarification of the matter is, in my view, absolute in light of this particular bit of added information. I just about spit my drink all over my keyboard with that comment. Anyway if you need help with anything else Jeff, don't hesitate to ask. :eyetwitch |
Originally Posted by Easy_E1
(Post 2797522)
When he says it like that I don't know whether he's being sincere or sarcastic. It's the exclamation point at the end.
beers :beer: |
Originally Posted by PotatoSoup
(Post 2797227)
Yes, 4 fuel injectors and 6 oil injectors, if that's what you mean.
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According to the above diagram,, the two OMP's appear to share a common union. Seems they both rely on the same oil source.
I find it funny that I can only find 4 outlets for the oil injectors on the pumps. Where are the injection lines for the other two.? I know Mazda loves these vague pics but is there another pic with the injection lines in relation to the pumps? |
Originally Posted by ASH8
(Post 2797563)
Confirmation only attached on page 2 of 3 so far in this thread...
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METERING OIL PUMP RESISTANCE INSPECTION.
1. Disconnect the metering oil pump No1 and No2 connectors (2 terminals). 2. Measure the resistance between terminals A-B using a Tester. * If not within the specification, replace the metering oil pump. Metering Oil Pump No1 and No2 standard resistance. 3.6 - 4.1 OHMS ( Temp 20 oC / 68 oF) Source: 2009 RX-8 WS Manual. I have not checked the Parts Manual, but it appears if the EMOP's are defective you renew the complete unit as there are no serviceable components. |
Originally Posted by Easy_E1
(Post 2797575)
According to the above diagram,, the two OMP's appear to share a common union. Seems they both rely on the same oil source.
I find it funny that I can only find 4 outlets for the oil injectors on the pumps. Where are the injection lines for the other two.? I know Mazda loves these vague pics but is there another pic with the injection lines in relation to the pumps? |
Originally Posted by MazdaManiac
(Post 2797587)
I don't have time to read everything - I count on the concise synopsis of people like Easy!
Takes a bow.. http://www.tabatowski.com/family/memory/tom/bowing.jpg |
Originally Posted by auzoom
(Post 2797591)
Is it possible that the outer injectors share an outlet hose?
I would like to see,, "01-11-14 Hose removal note". |
Originally Posted by Easy_E1
(Post 2797575)
I find it funny that I can only find 4 outlets for the oil injectors on the pumps. Where are the injection lines for the other two.?
They just didn't want to show double banjo fittings on that diagram, so they used a split line to designate two identical connections. Compare this to the left pump. |
Originally Posted by MazdaManiac
(Post 2797608)
If you look very carefully at the right pump on that diagram, it shows two outlets.
They just didn't want to show double banjo fittings on that diagram, so they used a split line to designate two identical connections. Compare this to the left pump. Where would they be with out us? :Eyecrazy: |
Lubrication
1 Attachment(s)
Here is the only other Diagram I can find of the EMOP and the Oil Tubes (as Mazda call them), the rest you have already seen, the manual does not show the Oil Tubes on their own or in a completed series or circuit.
I am sure the Parts Manual would show in more detail. There is a supply hose that goes from one EMOP to the OCV (No. 10) Oil Control Valve, located by the Water Pump/ Front Timing Cover. https://www.rx8club.com/attachment.p...1&d=1231047700 |
Originally Posted by Easy_E1
(Post 2797619)
I see now says the blind man. Thanks Jeff. We're doing good here tonight.
Where would they be with out us? :Eyecrazy: |
Originally Posted by ASH8
(Post 2797623)
I am sure the Parts Manual would show in more detail.
Originally Posted by MazdaManiac
(Post 2797624)
I dunno. Take a look at the pile-up in the Pettit threads, I guess.
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Originally Posted by Easy_E1
(Post 2797607)
It should show up as an intermediate connector in the pic,, some where I would think.
I would like to see,, "01-11-14 Hose removal note". As shown on page 2 of this thread...unfortunately there are no other complete pics of the Oil Tubes in the WS Manual. The Hose Removal Clamp/Fitting is related to the hose interconnection of the two EMOP's, sorry I just cant find any more diagrams for you. https://www.rx8club.com/attachment.p...2&d=1230955587 |
Originally Posted by ASH8
(Post 2797638)
sorry I just cant find any more diagrams for you. |
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