Oil Metering Pump extremely expensive
08-21-2011, 11:44 AM
#1
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Oil Metering Pump extremely expensive
Why is an OMP $1200 when you can get an entire engine for $2400? Where can I purchase an OMP for a sane price. Mine was ruined by driving the car for 3 Michigan winters.
joe
joe
08-21-2011, 12:09 PM
#2
I zoom therefore I am.
an entire engine is 2400?
anyway, the OMP is expensive because mazda charges what it charges, simple enough. You can buy a used one for much less then that.
anyway, the OMP is expensive because mazda charges what it charges, simple enough. You can buy a used one for much less then that.
08-22-2011, 04:48 PM
#5
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....or discard the OMP all together and go strictly Pre-Mix. I've met a few people that have done that to their RXs.
But you would have to religiously add the pre-mix during every fill up. If you forget even one time that would be a really bad for the engine
I also believe the aforementioned individuals used more pre-mix than the minimum recommended.
But you would have to religiously add the pre-mix during every fill up. If you forget even one time that would be a really bad for the engine
I also believe the aforementioned individuals used more pre-mix than the minimum recommended.
08-22-2011, 04:51 PM
#6
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....or discard the OMP all together and go strictly Pre-Mix. I've met a few people that have done that to their RXs.
But you would have to religiously add the pre-mix during every fill up. If you forget even one time that would be a really bad for the engine
I also believe the aforementioned individuals used more pre-mix than the minimum recommended.
But you would have to religiously add the pre-mix during every fill up. If you forget even one time that would be a really bad for the engine
I also believe the aforementioned individuals used more pre-mix than the minimum recommended.
Yeah don't listen to this guy. He has no idea what he is talking about. If you disregard the OMP, your car will run in limp mode because the PCM will know that the OMP is gone..
08-22-2011, 10:08 PM
#7
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I called him asking about the pros/cons of using the Sohn adapter as a future mod, how much he would charge for installing it, etc. He himself mentioned that many people (both RX-7 and RX-8 owners) have actually bypassed the OMP all together and go strickly with pre-mix. He was not talking about bypassing the oil supply (Sohn Adapter) but disabling the OMP completely. He did not explain - however - how he managed to go around the PCM issues. Perhaps this is something people do for racing applications only. He did not mention that either.
So....I'm sorry if my previous post suggested to the OP that he can just go disable the OMP in his RX-8 and call it a day without further modifications to the PMC.
But if the information I was given in incorrect, then I'll stand corrected
Last edited by pistonhater; 08-22-2011 at 10:54 PM.
08-22-2011, 10:54 PM
#8
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....or discard the OMP all together and go strictly Pre-Mix. I've met a few people that have done that to their RXs.
But you would have to religiously add the pre-mix during every fill up. If you forget even one time that would be a really bad for the engine
I also believe the aforementioned individuals used more pre-mix than the minimum recommended.
But you would have to religiously add the pre-mix during every fill up. If you forget even one time that would be a really bad for the engine
I also believe the aforementioned individuals used more pre-mix than the minimum recommended.
Who have you met that has done this on a RX-8? I know of one or two people with street cars that have done this so I am curious who the many people are who are doing this or recommending it.
Really
Sounds like you haven't heard of rotaries running with no OMP
One of the individuals who mentioned that to me was actually a very well known rotary tuner I called him asking about the pros/cons of using the Sohn adapter as a future mod, how much he would charge for installing it, etc. He himself mentioned that many people (both RX-7 and RX-8 owners) have bypassed the OMP all together and go strickly with pre-mix. He was not talking about bypassing the oil supply (Sohn Adapter) but disabling the OMP completely.
He did not explain - however - how he managed to go around the PCM issues. I didn't care to ask. Perhaps this is something people do for racing applications only. He did not mention that either.
So, I'm sorry if my previous post suggested to the OP that he can just go disable the OMP in his RX-8 and call it a day without further modifications to the PMC.
But the point is that it can be done and apparently many people out there have done successfully.
But if you can demonstrate nobody has ever done this, then I'll stand corrected
Sounds like you haven't heard of rotaries running with no OMP
One of the individuals who mentioned that to me was actually a very well known rotary tuner
I called him asking about the pros/cons of using the Sohn adapter as a future mod, how much he would charge for installing it, etc. He himself mentioned that many people (both RX-7 and RX-8 owners) have bypassed the OMP all together and go strickly with pre-mix. He was not talking about bypassing the oil supply (Sohn Adapter) but disabling the OMP completely. He did not explain - however - how he managed to go around the PCM issues. I didn't care to ask. Perhaps this is something people do for racing applications only. He did not mention that either.
So, I'm sorry if my previous post suggested to the OP that he can just go disable the OMP in his RX-8 and call it a day without further modifications to the PMC.
But the point is that it can be done and apparently many people out there have done successfully.
But if you can demonstrate nobody has ever done this, then I'll stand corrected
You should research the Oil metering system on the Renesis (Series I and II) and you will learn something because it is obvious you are clueless.
Last edited by 9krpmrx8; 08-22-2011 at 11:15 PM. Reason: spelling
08-22-2011, 11:13 PM
#9
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Who have you met that has done this on a RX-8? I know of one or two people with street cars that have done this so I am curious who the many people are who are doing this or recommending it.
Maybe you did not listen to this tuner or this tuner does not know what the hell he is talking about but you should really resist posting information or offering advice if you don't know what the hell you are talking about because it does not help anyone. I am well aware that many Rotaries run without an OMP but we are talking about the RX-8, a street RX-8, not rotaries in general. You recommended that he ditch his OMP all together and go strictly premix. That is just stupid advice.
You should research the Oil metering system on the Renesis (Series I and II) and you will something because it is obvious you are clueless.
Maybe you did not listen to this tuner or this tuner does not know what the hell he is talking about but you should really resist posting information or offering advice if you don't know what the hell you are talking about because it does not help anyone. I am well aware that many Rotaries run without an OMP but we are talking about the RX-8, a street RX-8, not rotaries in general. You recommended that he ditch his OMP all together and go strictly premix. That is just stupid advice.
You should research the Oil metering system on the Renesis (Series I and II) and you will something because it is obvious you are clueless.
Oh well, I stand corrected then.
Thanks.
08-22-2011, 11:29 PM
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08-22-2011, 11:40 PM
#12
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I suggest reading this book:
http://www.amazon.com/Street-Rotary-.../dp/1557885494
I have been corrected before and I am positive I will be corrected again. I just try my best to not repost info from others unless I am pretty damn certain it is accurate.
Happy Rotoring
Last edited by 9krpmrx8; 08-22-2011 at 11:43 PM.
08-22-2011, 11:57 PM
#13
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No worries, there is a lot of info and it is hard to decipher what is good info and what is bad info.
I suggest reading this book:
http://www.amazon.com/Street-Rotary-.../dp/1557885494
I have been corrected before and I am positive I will be corrected again. I just try my best to not repost info from others unless I am pretty damn certain it is accurate.
Happy Rotoring
I suggest reading this book:
http://www.amazon.com/Street-Rotary-.../dp/1557885494
I have been corrected before and I am positive I will be corrected again. I just try my best to not repost info from others unless I am pretty damn certain it is accurate.
Happy Rotoring
- Got it as a gift from a fellow member here who like you has been trying to help me learn. The author does talk about the option of disabling the OMP, but I think he refers more to "specialty" engine applications. Correct? Also, the author seems to suggest there is no significant difference in pre-mixing vs OMP in regards to better lubrication and engine longevity. Great controversy I guess.
You are correct, sometimes it is very tempting to rush into posting info on a public forum. I'll try to be careful about that.
One thing for sure, in regards to the OMP, I would like to run the Sohn Adapter, but I would have to wait until my car runs out of warranty. From what I've read so far, that mod makes a lot of sense.
I also hope the OP finds a solution to his problem that will not be as expensive. I was under the impression that OMPs were quite reliable and lasted for many years.
Thanks!!!
08-23-2011, 06:32 AM
#14
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I found a pump at a good price that includes new plastic feed lines. What do you need to remove to change the plastic OMP oil lines? Is there a DIY thread on this that includes some photos?
08-24-2011, 05:06 PM
#15
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You have to remove the upper intake manifold. It is also recommended that you replace the vacuum block that feed the oil injectors as well since it typically breaks when you remove the vacuum hoses form it. Also spray the bolts that hold the Upper intake manifold (UIM) on before you remove them, they are steel bolts going into an aluminum lower intake manifold (LIM) and commonly seize. Mine did and I had to rig it up until I eventually pulled my motor because the lower intake manifold cannot easily be removed with the engine in the car.
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