my car is back on the road after doing a butt load of work on it.

replaced coolant lines
full TB mod
Emissions removal
Remaining vac lines now silicone
full 6PI removal
ACV removal
Fully ported LIM
gasket matched UIM
Rebuilt oil injector lines

one thing i noticed after getting the car back on the road was the OMP and the lines. since i rebuilt the oil injector lines w/ the PFA teflon hose, per Injector line rebuild thread, they are all dry/empty. i had to add oil to my gas to drive around on while waiting for the Oil lines to fill and the injectors to be fed. i noticed something very odd and not very promising. i could see that 3 of the lines had oil in them where they disappeared under the manifold... but there was a 4th line that wasnt filling up nearly as fast. there was oil in it, but it was sort of lagging behind in the flow-rate department. this leads me to beleive that which ever injector is onthe end of that line does NOT get as much oil as it should. on the same token, this means that whichever rotor is situated under that injector is not getting the oil it SHOULD. this means my apex seals are being starved of oil.

do inconsistant flow rates from the OMP mean that its about to take a **** or is this natural for it to flow at a different rate? im thinking that the OMP is supposed to put out the same volume of oil on every injector line... and that something is wrong w/ my OMP.

can i rebuild my S5 OMP, or will i need to get another one?

the thing has 151k on it as it sits.... so i cant complain. but i dont want my precious S to die on me because of something i can fix.

and NO ted, i dont want to premix this thing yet!

 

Mazda has a test described in the FSM.
Do it to confirm.
You really can't diagnose this just by watching oil go through the lines.


-Ted

 

All 4 lines come off the same little chamber in the MOP.
I suspect that 4th injector is more restricted than the others.
Maybe a slight blockage.
Just pull the injectors & clean them out.

 

thanks guys. i tested the oil injection nozzles, but they were all in the same condtion. there wasnt one that was more restrictive than the rest.

i wasnt sure how i could test the OMP. for the mechcanical test in the FSM, it says to perform the Oil Leakage test on page D-4... that doesnt really tell me much though. my oil pan leaks... but, i havent seen many 7's that DONT leak. if they dont leak, somethings wrong! it probalby means the engine ran out of oil if it doesnt leak.

if all the injectors passed the blow test on page D-19 of the lubrication section and i have new oil lines which are fed from the same orifice on the omp... then, where could the restriction be located? im slightly befuddled.

thanks guys
chris