OMP Tech Questions.
Passenger
Posts: n/a
OMP Tech Questions.
Hello, techs, Ok i have a FD with a mechanical OMP claiming to fit 84-88 model years, and others i have seen for sale on e-bay say they fit 78-85 and all of this i dont know, all i know is i got the one i need to fit the adapter for my FD, anyways my questions are this:
1. when the lever is in the relaxed position is that the MAX flow position or the MIN flow position?
2. there are 4 banjo output holes that are possible to be used for injection lines and I only need 2 of them, which 2 should i use.
thanks in advance,
Jeremy
1. when the lever is in the relaxed position is that the MAX flow position or the MIN flow position?
2. there are 4 banjo output holes that are possible to be used for injection lines and I only need 2 of them, which 2 should i use.
thanks in advance,
Jeremy
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From: n
Originally Posted by RotorMotor2
1. when the lever is in the relaxed position is that the MAX flow position or the MIN flow position?
This should be MIN.
Fully "extended" working against the spring is MAX.
2. there are 4 banjo output holes that are possible to be used for injection lines and I only need 2 of them, which 2 should i use.
-Ted
Passenger
Posts: n/a
here is the one i have:
http://cm.ebay.com/cm/ck/1065-29392-...tem=8040860391
Here is another one with only 2 ports but they are not banjo style, should i get this one? can i drill and tap the sleeves out to the regular banjo style so i can use my stainless braided banjo oil metering injection lines?:
http://cm.ebay.com/cm/ck/1065-29392-...=imageandlink1
here is the adapter that i am useing to fit the OMP onto my FD:
(the one all the way at the bottom of the page)
http://www.gdsys.net/WWWmembers/unic...KEL/wankel.htm
ok the problem with this is that it is injecting some serious oil, like 1/2 qt in 10 miles and it is smokin it out the tailpipe, i had to remove my resivour and pre mix in the tank, i currently have NO throttle linkage connected to the OMP and it is sitting in the relaxed position and is why i thought that the relaxed position is the MAX open position.
any more insight?
Jeremy
http://cm.ebay.com/cm/ck/1065-29392-...tem=8040860391
Here is another one with only 2 ports but they are not banjo style, should i get this one? can i drill and tap the sleeves out to the regular banjo style so i can use my stainless braided banjo oil metering injection lines?:
http://cm.ebay.com/cm/ck/1065-29392-...=imageandlink1
here is the adapter that i am useing to fit the OMP onto my FD:
(the one all the way at the bottom of the page)
http://www.gdsys.net/WWWmembers/unic...KEL/wankel.htm
ok the problem with this is that it is injecting some serious oil, like 1/2 qt in 10 miles and it is smokin it out the tailpipe, i had to remove my resivour and pre mix in the tank, i currently have NO throttle linkage connected to the OMP and it is sitting in the relaxed position and is why i thought that the relaxed position is the MAX open position.
any more insight?
Jeremy
Passenger
Posts: n/a
thanks for the suggestion and i am currently doing that until i can figure out this solution but i have chosen to use the pump and the adapter, i like the idea of more oil with more rpm and load. plus with about 600 hp i would hate to not have enough lubercation when i need it and too much when i dont.
HAILERS
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
The two holer looks like a first generation pump.
The omp of a Turbo vs a non-turbo put out different volumes at a given rpm.
The large amount of oil your using suggests that the oil injectors are faulty OR the check valve in the oil injectors is plugged off. IF you plug off the air line to the top of the injectors, that means the engine on it's intake stroke will SUCK that oi right out of the omp oil line nobodys business. I'd check that out.
You need to go to the FSM for YOUR engine and find out how much oil is to be injected at a given rpm with the rod all the way up. IN a series four turbo they tell you to put the two lines that go to the rotor housing into a measuring cup. Then start the engine and run it at 2000 rpm for five minutes. Then compare what you collected with what is called for in the FSM. It's found in the OIL or LUBRICATION section of the FSM.
Like I said, the volume of a n/a is not the same as the volume of a turbo OMP and I'D never use a first generation pump on a series four or five for obvious reasons.
Also FYI, if the reservoir you made is higher than the oil injectors themselves, the oil will siphon into the rotor chambers when the engine is off, such as overnight. Not a large volume but enought to make smoke when you start the engine in the morning (for a few moments).
You have serious oil injector problems if you sucking down oil at the rate you mentioned.
By the way, in the past I tied my OMP rod in the full up positon. It did suck the oil level down like nobody's business in that mode. The lever should be spring loaded in the down or OFF positon if there is no rod connected to it. Lift up on the rod/lever to inject more oil. Now high????? Never leave home without the rod connected to the throttle body/lever and the OMP.
The omp of a Turbo vs a non-turbo put out different volumes at a given rpm.
The large amount of oil your using suggests that the oil injectors are faulty OR the check valve in the oil injectors is plugged off. IF you plug off the air line to the top of the injectors, that means the engine on it's intake stroke will SUCK that oi right out of the omp oil line nobodys business. I'd check that out.
You need to go to the FSM for YOUR engine and find out how much oil is to be injected at a given rpm with the rod all the way up. IN a series four turbo they tell you to put the two lines that go to the rotor housing into a measuring cup. Then start the engine and run it at 2000 rpm for five minutes. Then compare what you collected with what is called for in the FSM. It's found in the OIL or LUBRICATION section of the FSM.
Like I said, the volume of a n/a is not the same as the volume of a turbo OMP and I'D never use a first generation pump on a series four or five for obvious reasons.
Also FYI, if the reservoir you made is higher than the oil injectors themselves, the oil will siphon into the rotor chambers when the engine is off, such as overnight. Not a large volume but enought to make smoke when you start the engine in the morning (for a few moments).
You have serious oil injector problems if you sucking down oil at the rate you mentioned.
By the way, in the past I tied my OMP rod in the full up positon. It did suck the oil level down like nobody's business in that mode. The lever should be spring loaded in the down or OFF positon if there is no rod connected to it. Lift up on the rod/lever to inject more oil. Now high????? Never leave home without the rod connected to the throttle body/lever and the OMP.
Last edited by HAILERS; Sep 26, 2006 at 01:06 PM.
Passenger
Posts: n/a
Hailers: thanks for the good info, my resivour is above the OMP and below the injectors, i tested the injectors when i assembled the engine 16 miles ago, sucked through the vacume line hole but could not and blew through it and could, also the vacume lines are connected directly together via a t fitting and then to the UIM between the TB and the block. no silonoid. maybey i should check the injectors again or just replace them?
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HAILERS
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
It sounds like they are working right. Make SURE that the lines going to the top of the oil injectors are NOT connected to a source of vacuum. The feed should be gong to a nipple that leads to a passage BEFORE the throttle plates i.e. not vacuum.
IF unsure, then disconnect the *vacuum* line going to the oil injectors and leave the lines on the top of the oil injectors open to atmosphere and drive like that for a while. You'd need to cap/plug off the line you had going to them to prevent a leak.
The message in short is that the lines going to the top of the oil injectors DO NOT get vacuum.
IF unsure, then disconnect the *vacuum* line going to the oil injectors and leave the lines on the top of the oil injectors open to atmosphere and drive like that for a while. You'd need to cap/plug off the line you had going to them to prevent a leak.
The message in short is that the lines going to the top of the oil injectors DO NOT get vacuum.
HAILERS
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
In additon to the above post you might get two small gasoline engine fuel lines as pictured in the attached jpg. Then put a banjo fitting on them like the jpg.
Now remove any two lines from the OMP and attach these two NEW lines. Put their open ends in a measuring cup. You can find graduated cups at a pharmacey/food store/somewhere.
Start the engine and rig to hold a 2000 rpm. Lift all the way up on the omp lever somehow. Zip tie??? Wait til both lines are full then put them in the measuring cup and wait five minutes and see how much you collect. I think the figure is somewhere b/t 5 and 7 cc's for a turbo series four car. Different figure for a n/a engine.
Now remove any two lines from the OMP and attach these two NEW lines. Put their open ends in a measuring cup. You can find graduated cups at a pharmacey/food store/somewhere.
Start the engine and rig to hold a 2000 rpm. Lift all the way up on the omp lever somehow. Zip tie??? Wait til both lines are full then put them in the measuring cup and wait five minutes and see how much you collect. I think the figure is somewhere b/t 5 and 7 cc's for a turbo series four car. Different figure for a n/a engine.
Last edited by HAILERS; Sep 26, 2006 at 02:41 PM.
Passenger
Posts: n/a
ok they are connected to a vacume source, but i thought that it does not matter, because they in themselves are a check valve..... so only boost can get through and vacume would do nothing..... well i will change this and connect to a source between throttle plates and turbo, i dont know where but i will find one, i hate to connect anything else to my boost controllers lines but that might be the only source.
HAILERS
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
On a series four there is a large nipple on the back of the throttle body. That nipple leads to a passage in the throttle body that exits in FRONT of the throttle plates. Your FD probablly has one similar to that.
Blow smoke thru all the nipples and see if one exits in front of th throttle body.
Blow smoke thru all the nipples and see if one exits in front of th throttle body.
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Joined: Feb 2001
Posts: 26,664
Likes: 22
From: n
Originally Posted by HAILERS
On a series four there is a large nipple on the back of the throttle body. That nipple leads to a passage in the throttle body that exits in FRONT of the throttle plates. Your FD probablly has one similar to that.
Blow smoke thru all the nipples and see if one exits in front of th throttle body.
Blow smoke thru all the nipples and see if one exits in front of th throttle body.
The fitting is actually on the TB "snorkel".
-Ted
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