(COOLING/OIL) Rebuilding the OMP oil injection lines
09-15-04, 10:18 PM
#26
RX-8 spy
Thread Starter
We haven't removed the omp. Didn't even look at how it could be removed. Sorry, hopefully someone else has pulled one and can tell you.
As for the injectors, they just screw-out like big hex. head bolts (19mm wrench, I think).
Plan on finding the lines in need of replacement. Both lines going to the intake manifold injectors broke as soon as the injectors started rotating upon their removal. It was like inevitible, they were just that brittle.
As for the injectors, they just screw-out like big hex. head bolts (19mm wrench, I think).
Plan on finding the lines in need of replacement. Both lines going to the intake manifold injectors broke as soon as the injectors started rotating upon their removal. It was like inevitible, they were just that brittle.
09-16-04, 01:53 AM
#27
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I mentioned this in another post of mine, but never got a straight answer. Is it necessary while your down there doing this to remove the oil injectors and clean those up? or is the oil injector just pretty much a ******* pipe that has no spray pattern and dumps oil in the engine, thus not requiring cleaning?
thx
thx
09-16-04, 09:03 AM
#28
XBL** Ownicus
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Originally Posted by BlaCkPlaGUE
I mentioned this in another post of mine, but never got a straight answer. Is it necessary while your down there doing this to remove the oil injectors and clean those up? or is the oil injector just pretty much a ******* pipe that has no spray pattern and dumps oil in the engine, thus not requiring cleaning?
thx
thx
And here's the opening that the oil comes through:
There's a decent amount of distance between the end of the injector and the opening, so even if it did spray in a pattern, it would just be an undefined blob by the time it hit the opening.
I'm thinking that carb cleaner would be ok for cleaning the injectors and pump, what do you guys think?
09-16-04, 10:36 AM
#29
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The injector is sucking at the metered oil on it's intake stroke. There'd have to be some degree of atomization.
The injectors have what looks like a rubber poppet valve inside. Does carb cleaner have any bad effects on rubber? Probably not in the short run.
The injectors have what looks like a rubber poppet valve inside. Does carb cleaner have any bad effects on rubber? Probably not in the short run.
09-16-04, 11:39 AM
#30
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Ok, I just ordered my tubing and am pulling out the FSM to read up on OMP removal. That site rocks, got a good SPDT relay for $5.87 I'm moving my stereo off the stock wiring and planning on running a line directly from the battery.
Anyways, this should be a great project. Thanks for the all the info you posted.
BTW, I checked the PDF page that has the tubing on it and it's primary use is for air brake lines, and is rated at 150psi. That should handle oil injection with no problem.
I'm moving my stereo off the stock wiring and planning on running a line directly from the battery.Anyways, this should be a great project. Thanks for the all the info you posted.
BTW, I checked the PDF page that has the tubing on it and it's primary use is for air brake lines, and is rated at 150psi. That should handle oil injection with no problem.
09-16-04, 02:29 PM
#31
RX-8 spy
Thread Starter
Were you on page 4120? I think you were reading the header stuff for "D.O.T. Type “A” Nylon Air Brake Tubing".
Look to the bottom-left section of that page with the heading "Teflon® (FEP & PFA) Flexible Tubing". That's the section that has the #48701031 tubing.
No problem with your order though, as long as you bought the 48701031 tubing.
You should see their printed catalog. It's hardbound with real thin pages and is 8.5 x 11, about 4" thick! I just checked, it has 4,640 pages, not including the 96-page index in the back. It's like a NY city phone book. Their distribution centers must be HUGE! Yet, our orders always arrive next-day here from Atlanta. Amazing, really.
Look to the bottom-left section of that page with the heading "Teflon® (FEP & PFA) Flexible Tubing". That's the section that has the #48701031 tubing.
No problem with your order though, as long as you bought the 48701031 tubing.
You should see their printed catalog. It's hardbound with real thin pages and is 8.5 x 11, about 4" thick! I just checked, it has 4,640 pages, not including the 96-page index in the back. It's like a NY city phone book. Their distribution centers must be HUGE! Yet, our orders always arrive next-day here from Atlanta. Amazing, really.
09-17-04, 10:59 PM
#32
RX-8 spy
Thread Starter
Originally Posted by uRizen
I'm still wondering how difficult it is to pull the OMP all together so I can clean it out and make sure it's going to be working properly. I plan on changing the oil when I'm pulling out my fuel injectors anyways, so it would be a good time to run maintenance on all the systems under the UIM.
I'm also looking for any tips on pull the oil injectors off for a good cleaning. They look pretty straight-forward for removal, but just want to make sure I don't fark something up.
I'm also looking for any tips on pull the oil injectors off for a good cleaning. They look pretty straight-forward for removal, but just want to make sure I don't fark something up.
Having said that, and assuming you get one, I found the answer to everything you have asked right in there just now. Chapter 2 Part A section 9. It tells you how to check your oil injector nozzles, check your oil metering pump (output volume), how to remove the metering pump (did you know there are mechanically controlled and also electrically controlled omp's? I didn't
), how to adjust the mecancially controlled ones... good stuff.I'm gonna go check MRX Rotary's oil injectors right now... now that I know how. (You should be able to blow thru them by mouth from the air hose connector, but not in the opposite direction.)
09-25-04, 04:15 PM
#33
RX-8 spy
Thread Starter
One final pic - finished the install & all seems well.
I was concerned about the lack of oil injection during the time it took the omp to finally fill the new lines to get oil to the injectors. We added even more mmo to the gas for a little more lubricity / protection. There was only a little over 1/4 tank of gas - good for that rich mix for a short duration. Turns out, it takes maybe 20 - 30 miles of common driving to fill the new lines.
I had no idea of how to pre-fill them. Then again, I didn't know they wouldn't fill-up at initial crank-up either. I guess that's why they call it a "metering" pump, huh? I suppose a very small squirter, bent at its tip to get to the itty bitty hole in the banjo fitting... ah heck with that. Just let the omp fill your lines & add a stiff dose of mmo to your gas, or what those people do who aren't even using their injectors, if you want, just for that 20 - 30 mile fill-up period.
So, did anybody else do this yet?
I was concerned about the lack of oil injection during the time it took the omp to finally fill the new lines to get oil to the injectors. We added even more mmo to the gas for a little more lubricity / protection. There was only a little over 1/4 tank of gas - good for that rich mix for a short duration. Turns out, it takes maybe 20 - 30 miles of common driving to fill the new lines.
I had no idea of how to pre-fill them. Then again, I didn't know they wouldn't fill-up at initial crank-up either. I guess that's why they call it a "metering" pump, huh? I suppose a very small squirter, bent at its tip to get to the itty bitty hole in the banjo fitting... ah heck with that. Just let the omp fill your lines & add a stiff dose of mmo to your gas, or what those people do who aren't even using their injectors, if you want, just for that 20 - 30 mile fill-up period.
So, did anybody else do this yet?
09-27-04, 09:59 AM
#34
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Originally Posted by Racer X-8
One final pic - finished the install & all seems well.
I was concerned about the lack of oil injection during the time it took the omp to finally fill the new lines to get oil to the injectors. We added even more mmo to the gas for a little more lubricity / protection. There was only a little over 1/4 tank of gas - good for that rich mix for a short duration. Turns out, it takes maybe 20 - 30 miles of common driving to fill the new lines.
I had no idea of how to pre-fill them. Then again, I didn't know they wouldn't fill-up at initial crank-up either. I guess that's why they call it a "metering" pump, huh? I suppose a very small squirter, bent at its tip to get to the itty bitty hole in the banjo fitting... ah heck with that. Just let the omp fill your lines & add a stiff dose of mmo to your gas, or what those people do who aren't even using their injectors, if you want, just for that 20 - 30 mile fill-up period.
So, did anybody else do this yet?
I was concerned about the lack of oil injection during the time it took the omp to finally fill the new lines to get oil to the injectors. We added even more mmo to the gas for a little more lubricity / protection. There was only a little over 1/4 tank of gas - good for that rich mix for a short duration. Turns out, it takes maybe 20 - 30 miles of common driving to fill the new lines.
I had no idea of how to pre-fill them. Then again, I didn't know they wouldn't fill-up at initial crank-up either. I guess that's why they call it a "metering" pump, huh? I suppose a very small squirter, bent at its tip to get to the itty bitty hole in the banjo fitting... ah heck with that. Just let the omp fill your lines & add a stiff dose of mmo to your gas, or what those people do who aren't even using their injectors, if you want, just for that 20 - 30 mile fill-up period.
So, did anybody else do this yet?
09-27-04, 12:49 PM
#35
RX-8 spy
Thread Starter
Fijenson did it & thought his lines melted 
BUT, he found out later that they are just fine 
Here's the thread (that I wish would be deleted now)... https://www.rx7club.com/showthread.p...0&page=1&pp=15
All is well with the world.
BUT, he found out later that they are just fine Here's the thread (that I wish would be deleted now)... https://www.rx7club.com/showthread.p...0&page=1&pp=15
All is well with the world.
03-19-05, 09:52 AM
#37
Carter 2.0
I agree, there is another write up that is just as good. The Mods need to re-title the threads so that it reads more to the point, like "How to fix you OMP lines"
Seems there are quirks to the S4-S5 that pop up over and over. OMP lines, Premix, FPD, TPS, That bolt that goes under the starter being different. Most of the threads are already there but a few need to be added.
Seems there are quirks to the S4-S5 that pop up over and over. OMP lines, Premix, FPD, TPS, That bolt that goes under the starter being different. Most of the threads are already there but a few need to be added.
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