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-   -   no oil pressure (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/no-oil-pressure-818925/)

turbo-111 02-09-09 08:53 PM

no oil pressure
 
so i have posted this once b4 got alot of helpful ideas but all ride the fail boat.
using after market gauge so sender is not the issue
no oil in filter
no oil in oil cooler
tried putting oil down the oil filter tube
on thing that i was told was to disconnect the oil cooler outlet line now my car is parked down hill with the engine facing down so what i plan to do is Friday turn the car around so gravity works with me and not against... anyone else got some ideas ?

Nismo Convert86 02-09-09 09:18 PM

Front cover O-ring sounds like the like culprit.

turbo-111 02-13-09 07:23 PM

can the o-ring really keep oil pressure from starting ?

-xlr8planet- 02-13-09 07:27 PM

its is a common failure

turbo-111 02-14-09 03:08 PM

looks like im just ganna have to pull the front cover off...... yay :(

turbo-111 02-15-09 10:11 AM

just a thought i had last night but is there any special way the oil pump has to be reinstalled ? like does it have to be in a certain position >?

Aaron Cake 02-15-09 10:46 AM

Give us the whole story. Is this after a rebuild?

How are you trying to build pressure? By just cranking with the starter?\

If this is a fresh rebuild it's likely that the starter will not spin fast enough to build pressure but the pump will begin to work when the engine speeds up. This is especially true if the pump was assembled dry.

Pull the spark plugs so the starter can spin the engine quickly and check for pressure and flow.

turbo-111 02-15-09 12:22 PM

fresh rebuild and i tryed with the starter then bought mechanical gauge, still got nothing, then actually started the car and let it run for about a min at 1500 rpm, check filter nothin. after that i disconected the oil cooler line from the front cover and turned the car over by hand, then by the starter... nothing came out. tryed the primming the pump as was explaind in my other thread... still got nothin all though the oil was going down its just like the pump is doing nothing at all. b4 i packed up for the night i put some 20w50 the thickest stuff i had at the time and let it sit over night. 2day after work im going to check and see what has happened if i still got nothing im pulling the front cover off then taking out the oil pump and filling it up with as much oil as i can find lol.

junito1 02-15-09 12:27 PM

The oil pump does have some dots you have to line up ,but its easy stuff.

turbo-111 02-15-09 12:32 PM

dots ? i just kinda put it back together and slaped it on there

junito1 02-15-09 12:44 PM

umm. I have never done it personaly. But yes IM 100% sure the oil pump has to some marks your line up..



THis could be the reason you have no oil press. Can someone more experienced second me?

turbo-111 02-15-09 12:49 PM

crap i know i didnt do that... but i think regardless im going to have to pull it

turbo-111 02-15-09 11:22 PM

somtimes i look up to the sky and go why lord... who am i to suck at life ?

junito1 02-16-09 01:49 PM

OK when you finish taking the front cover off and get to the oil pump.

GRab the oil pump and taske a good look at it. The lil start has a dot on one of the spokes(ithink)

And there is also a dot on the oilpump.
Line those up as close as you can.


ALSO. You should search on how to prime the oilpump before reinstalling.

Aaron Cake 02-17-09 09:53 AM

Ya know the position of the dots doesn't matter, right? The pump only goes together one way...

Did you leave out the little key on the pump drive sprocket?

Bruceman 02-17-09 11:34 AM

You didn't leave a plug in one of the oil cooler hose fittings/lines did you? Been there, done that, no oil pressure.

turbo-111 02-17-09 01:57 PM

HELLS TO THE YEAH BOYS!!!
so i got the front cover off this morning and the answer was right there.... the nut was loose. how ? idk cause i crushed the washer on two sides lol ironicly saying aloud "this B%^%h will never come off" wich it did. it totaly pushes the oil out, but i cant tightn it back down cause it just spins.... how do you tightn it when its back on the engine.

turbo-111 02-17-09 03:49 PM

i see in fsm theres a screw that you tightn down and it says take out after instalation is that what hold it in place till your done tqing it down ?

prjct87rx7 02-26-10 02:25 AM

any new news?

RotaryEvolution 02-26-10 02:47 AM

don't mind him, he both lost the key and had the nut loose on the drive gear. likely because the gear was spinning on the shaft and worked the nut loose. hopefully he didn't think it was just a loose nut and reassembled it after retightening it. there is a set screw though that commonly also works its way loose and allows the inner drive gear to spin in the housing.

Paulieboy72 04-13-24 10:17 AM

Did uae your clutch to hold pressure on the stack when u pulled the front cover? I have to the same thing, don't want to pull thw motor but I currently don't have a working clutch.


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