Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

Oil Pressure Question in a Loyale

91 Loyale oil pressure

  • Please log in to reply
7 replies to this topic

#1 thekauz

thekauz

    New User

  • Members
  • PipPip
  • 17 posts
  • Baltimore, MD

Posted 14 July 2014 - 07:25 PM

I have a 91 Loyale 2WD. At idle the oil pressure is very low, almost on the line. When driving its about 35-45 PSI.

I've had some folks say that is normal and other say it needs an oil pump.

 

a few problems i have are that i'd like to send the car to Florida for the family to use. I'd hate to send it down and have the oil pump crap out. My next issue is that if it is an oil pump replacing it is involved and time consuming especially on the old beauty.

 

Any thoughts or suggestions?



#2 Tat2Brat

Tat2Brat

    Advanced Member

  • Members
  • PipPipPip
  • 49 posts
  • Tacoma WA

Posted 14 July 2014 - 07:48 PM

I'd get a new oil sending unit before anything. See what that does and go from there. Also not sure but i think an oil pump either works or it doesn't. If your gauge goes up when in gear I would assume your pump works. You can always make sure by taking it out and inspecting. Never bad to replace the O rings and gasket while your at it. Just don't pry on it cause it will crack or break.



#3 Tat2Brat

Tat2Brat

    Advanced Member

  • Members
  • PipPipPip
  • 49 posts
  • Tacoma WA

Posted 14 July 2014 - 07:50 PM

oh and here is this bit of info

 

Here's how your factory oil pressure gauge should behave on a healthy engine with a properly-sealed oil pump:



Startup: should go to around 45psi at idle, and go as high as 60psi when the revs climb.

Warmed up: Should go to 45psi and pretty much stay there when the revs are up, maybe go a little higher if you get on it.

Warmed up idle: Should sit just above the 0 mark, most likely in the 20psi range.



Sure these gauges aren't completely accurate, but they're much better than any domestic gauges I've seen...



#4 thekauz

thekauz

    New User

  • Members
  • PipPip
  • 17 posts
  • Baltimore, MD

Posted 14 July 2014 - 08:46 PM

Thats sounds like what mine does now. Warmed up at idle its just above zero. When driving warm its about 45. I'll check cold idle tomorrow morning.

I'm puttinf some R-12 in the A/C in the morning so I'll check then

 

thanks



#5 Dee2

Dee2

    USMB Regular

  • Members
  • 282 posts
  • US

Posted 15 July 2014 - 12:45 AM

I have a 91 Loyale 2WD. At idle the oil pressure is very low, almost on the line. When driving its about 35-45 PSI.

I've had some folks say that is normal and other say it needs an oil pump.

...

Any thoughts or suggestions?

 

That's normal for these cars.  I don't think you have a problem.



#6 thekauz

thekauz

    New User

  • Members
  • PipPip
  • 17 posts
  • Baltimore, MD

Posted 15 July 2014 - 09:36 AM

Thanks everyone for the help. thats one less thing to worry about. Now on to the A/C issues



#7 Petersubaru

Petersubaru

    1000+ Super USER!

  • Members
  • 1,088 posts
  • Sarnia Canada

Posted 15 July 2014 - 04:39 PM

I have a 91 Loyale 2WD. At idle the oil pressure is very low, almost on the line. When driving its about 35-45 PSI.

I've had some folks say that is normal and other say it needs an oil pump.

 

a few problems i have are that i'd like to send the car to Florida for the family to use. I'd hate to send it down and have the oil pump crap out. My next issue is that if it is an oil pump replacing it is involved and time consuming especially on the old beauty.

 

Any thoughts or suggestions?

I have installed a new oil pump at my last timing belt exchange, simply because it was given to me..after attaching a separate oil pressure gauge, @ 3000 rpm gave 35 psi  …perhaps the pressure may have gone up if I used a thicker oil, but personally I don't see a need to run thicker since the lifters make no noise and the vehicle runs very quiet and gets good mileage…I have been using 5w/20 for a very long time now..



#8 Crazyeights

Crazyeights

    SubaRube Goldberg

  • Gold Subscribers
  • 1,002 posts
  • PNW

Posted 15 July 2014 - 04:51 PM

If it has enough oil pressure to keep the lash adjusters quiet it's probably fine.






0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users