Jump to content
SAU Community

No oil pressure after car sits for a long time

aleks

By aleks,
in Engines & Forced Induction

 Share

Recommended Posts

aleks Community Regular

aleks

Posted
Posted
No oil pressure after car sits for a long time

So I have a RB25 neo engine that sat and didn't run for years. First time I tried to turn it over I could not get the oil pressure light to turn off after cranking it for along time repeatedly with the crank angle sensor unplugged. The oil pressure switch turned out to be working fine after putting an oil pressure gauge on it while trying to crank the engine and there was absolutely zero oil pressure.  Managed to get a hold of an accumsump and push oil through the engine which ended up solving the problem.The engine now has pressure, took the accusump off cranks and runs fine with oil pressure.

Ran and drove the car for a few weeks no problems than it sat again for a few months and now back to no oil pressure while cranking the engine with the cas off.

Has anyone heard of this problem before? Seems like there has to be some leak between the pump the pick up. I also have quite alot of oil pressure on idle from what I could remember 80 - 90 psi.

GTSBoy Grand Master

GTSBoy

Posted
Posted

Or there's dirty lumps of sludge in there that you moved when you pressurised it with the Accusump and they have found their way back to cause you a problem.  Could be the inlet of the oil pump, or more a major gallery in the outlet area.

Probably worth doing a drop and refill with diesel, pressurise with diesel with the Accusump type of exercise to see if you can clean it out.

It could be something as silly as a lump of silicone/sealant hanging out of a flanged joint into the flow.  Like where the pickup bolts on.  Given that you seem to have silly high oil pressure at idle, you may have some sort of aftermarket pump/gears in there, which implies the opportunity for someone to have made a mess with sealant.

aleks Community Regular

aleks

Posted
  • Author
Posted

It has a nitto pump. I didnt have access to an accusump this time so I just gravity fed with a big funnel oil through the turbo oil feed and it managed to do the trick and the oil light turned off after cranking it over pretty quickly. Sounds like the oil pump is draining completely dry maybe?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • wizlb
      Who has a Infiniti Q60, Q50 (V37)?

      By wizlb · Posted

      If you are Ecutek tuned then these TCU tunes are anywhere from $550 to $700 usd. If you are not ECUTEK tuned, then it gets costly!    
    • brillo
      Leak from Tokico BM50 Brake Master Cylinder

      By brillo · Posted

      Sorry to hear your HFM BM57 was faulty,  did you contact HFM I would hope they would be at least grateful for the information if there was some sort of manufacturing fault, you would hope they would be sympathetic even if your item was 2 years old if it had never been fitted. May I ask where it leaked from ?
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Cats are called Bella, and Donna...  Like that poisonous plant And I remember your 2 monsters, I remember making a little bit of wee when you let them out... LOL I have already installed cat doors into the laundry where their kitty litter is, and the sun room, apart from the cat doors there's not going to be any permanent mounted stuff on the interior walls (interior doors are cheap and easy to replace) I will get a outdoor cat cage thingie once I finish the landscaping out back... https://catnip.com.au/ The only off limit areas are the main bedroom and the gym room....but, currently the cats are curled up in bed, in the main bedroom with the Mrs.....LOL, the off limits for the kittens to the main bedroom lasted about 5 minutes with Jackie I currently only have 1 free standing huge cat tree multiple level scratching post thingie in the lounge room, but, I will be getting another one soon now that I'm happy with the furniture layout in the back room and have a perfect spot for it  
    • joshuaho96
      UniClutch

      By joshuaho96 · Posted

      All of this is making it seem clear that running the Coppermix twin was definitely the way to go, especially in hindsight with how insane tariffs have gotten and the strength of the USD vs yen at the time.
    • MBS206
      Who has a Infiniti Q60, Q50 (V37)?

      By MBS206 · Posted

      That sounds like no chance of even importing one for road registering then Now I see why Duncan wants to check LHD rules for Targa...   I wonder how "bolt in" the AWD would be if you got one imported from the US and swapped it to an AUD one
×
×
  • Create New...