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hm it seems that amount of oil going trough these OMP nozzles is very small so they are more dripping oil rather than spraying it
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Originally Posted by Nadrealista
(Post 4125313)
hm it seems that amount of oil going trough these OMP nozzles is very small so they are more dripping oil rather than spraying it
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Just an update, I'm now consuming about 1.5qts per 2,000 miles. (Last 2 changes). Very happy with results. :)
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nice, what was the size of the socket you jammed into OMP vacuum line..
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I would just block it off full.
Ok so don't laugh too hard... I jammed a 5.5mm socket into the vacuum line. (one that is hollow) this seem to increase oil usage some but I wanted more, so I took one of those red electrical butt connectors (sorry forgot the correct terminology) and wedged it into the socket. Making the hole extreamly small. Didn't use glue or anything, just forced it in. |
so if you block the omp air supply hose completely, are you effectively forcing OMP to inject oil at max rate all the time?
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Subscribed...My oil consumption is steadily decreasing...I injected 1/2 a quart in 4000 miles...Yep...No joke...I've been premixing, but I really need to solve this issue...I really don't want a 3rd engine.
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Originally Posted by Nadrealista
(Post 4192310)
so if you block the omp air supply hose completely, are you effectively forcing OMP to inject oil at max rate all the time?
what I am curious about are these two situations: 1. what does the omp injection rate depends on when you are running full throttle down the long track straight. 4th gear so it takes some time to get to the redline and there is no engine vacuum at all. in this situation amount of oil supplied by the omp nozzles would be just what the omp pump pushes, so capping omp air supply line has no effect on oil injection rate in this situation. 2. you are reaching the braking zone so you get off throttle and engine is under full vacuum. this is where restricting/capping off omp air supply line has greatest effect since no air is allowed into the system making the oil injection rate proportional to the amount of vacuum engine produces. this means that most oil gets injected in off throttle period. what do you guys think, does this make sense? 2. Right on the money. Look at this video of me reving my car, blue smoke when engine is deaccelerating. I love it. (Little seafoam in there too ;) ) |
nice work... subscribed.
i suggest another thing : if you insert a small amount of pens ink in the oil lines of OMP with a syringe with needle through the extremity of the line that looks towards the OMP... and you make the same procedure of your unplugging method (rev to 3k rpm.. ecc) ... you think that the movement of the ink in the line can be seen if the oil injection system is free?.... And on the contrary it stay firm if the system is clogged? sorry for my low level english... i have to work on that :D |
Originally Posted by Asclepio
(Post 4192722)
nice work... subscribed.
i suggest another thing : if you insert a small amount of pens ink in the oil lines of OMP with a syringe with needle through the extremity of the line that looks towards the OMP... and you make the same procedure of your unplugging method (rev to 3k rpm.. ecc) ... you think that the movement of the ink in the line can be seen if the oil injection system is free?.... And on the contrary it stay firm if the system is clogged? sorry for my low level english... i have to work on that :D |
I think it would work, but your wasting your time, when you disconnect the line and run the engine the line will become noticeably lighter in color than the rest when it sucks all the oil out and only air is left. Look at the pics in my post.
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Originally Posted by 1.3_LittersOfFurry
(Post 4192749)
I think it would work, but your wasting your time, when you disconnect the line and run the engine the line will become noticeably lighter in color than the rest when it sucks all the oil out and only air is left. Look at the pics in my post.
what do you think? |
it is a good idea but it is one of those things while you are in there..you might as well run some cleaner trough the lines.
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I might have to give this a try. I became concerned about my oil consumption ever since switching to synthetic. It seemed like my car was using very little oil during the the 1st syn oil change. About half a quart in the 3k miles driven when before it was 1.5q avg.
I did the OMP nozzle cleaning by allowing seafoam through the vacuum line. Then I did my 2nd oil change. Now... about 800 miles later, my oil level has not changed 1 millimeter on the dipstick... maybe the syn oil knocked some sludge loose and clogged the lines? I don't know. Every time I look at the lines the color looks exactly the same, a medium amber color... Its a good thing I premix, but I would like to get the stock system back up and running. |
Nines, try capping the vacuum line to the oil injectors (don't forget to cap the intake tube too) drive about 200-300 and then see if your oil level has drop. You might want to also consider premixing in case you actually are not burning oil.
Here is a good read.. https://www.rx8club.com/sitemap/t-197314.html |
I already premix with Idemistu :) I'm going to have to look for some vaccum caps to plug both lines up. Or maybe just some duct tape?
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1.3_LittersOfFurry do you remember what was the torque for bolts that attach oil lines to the OMP pump?
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1 Attachment(s)
Me = confused! Are 1.3_LittersofFurry pics for an 04/05? My 06 intake accordian has the hose with the yellow mark in another position. Is that the one running to the OMP? I cannot see a hose connecting to the OMP at all and tracing hoses from the top, down, seems impossible without removing a bunch of stuff. :sad:
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1 Attachment(s)
Originally Posted by Nadrealista
(Post 4211574)
1.3_LittersOfFurry do you remember what was the torque for bolts that attach oil lines to the OMP pump?
Originally Posted by HiFlite999
(Post 4226551)
Me = confused! Are 1.3_LittersofFurry pics for an 04/05? My 06 intake accordian has the hose with the yellow mark in another position. Is that the one running to the OMP? I cannot see a hose connecting to the OMP at all and tracing hoses from the top, down, seems impossible without removing a bunch of stuff. :sad:
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@ 1.3_LittersOfFurry
[quote Blocking off the omp vacuum line defiantly increases the oil rate. In the 200ish miles driven between doing this (with the line capped) I can see the oil level has dropped a very noticeable amount. I'm attempting today to add some type of valve to the omp vacuum line to kind of have some control over it... [/quote] Pictures of vacuum line restrictors supplied by a German Rex-forum member to fellow-members. (most people ordered a restrictor with inner bore of 2mm which increases OMP oil consumption from 1,0 litre at 2000 mls to 1,7 litre at 2000 mls) For more details see the undermentioned thread..................... http://i52.tinypic.com/rwnxo4.jpg http://i52.tinypic.com/2lco6j5.jpg http://www.rx8forum.de/index.php?pag...rrmser+adapter |
^ nice! Unfortunately, one cannot read the thread without joining.
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I actually seen that pic before on a Europe forum. If I remember correctly, its a 2mm hole. Thanks For sharing. :)
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Why would adding a restrictor make the OMP pump more oil? That makes no sense to me since the amount injected is determined by load and RPM by the ECU.
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This is how I "think" it works...
Everyone talks about how the oil injectors "drips" oil into (or onto) the housings by the apex seal passing and spreading it around. As we all know now the is a great amount of air passing through the injectors. Oil may in fact be coming out of the oil injectors at a dripping pace, but with all that air passing I find it hard to believe it's not spraying (or misting) into the housing. As long as that air is allowed to pass with out restriction (meaning less vacuum pressure in the line) the omp controls how much oil goes in. When you add a restriction to the vacuum line, the pressure in the line drops, creating a suction on the omp's oil lines. The suction helps more oil get thru the omp and into the engine. I've only had 2 drinks today so this seems like legit thinking. :scratchhe |
Originally Posted by 1.3_LittersOfFurry
(Post 4276952)
This is how I "think" it works...
Everyone talks about how the oil injectors "drips" oil into (or onto) the housings by the apex seal passing and spreading it around. As we all know now the is a great amount of air passing through the injectors. Oil may in fact be coming out of the oil injectors at a dripping pace, but with all that air passing I find it hard to believe it's not spraying (or misting) into the housing. As long as that air is allowed to pass with out restriction (meaning less vacuum pressure in the line) the omp controls how much oil goes in. When you add a restriction to the vacuum line, the pressure in the line drops, creating a suction on the omp's oil lines. The suction helps more oil get thru the omp and into the engine. I've only had 2 drinks today so this seems like legit thinking. :scratchhe Best regards, Ruud |
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