My oil pressure always sits at around 30psi at idle and rises to a little over 60psi from about 1800rpm. I have another pressure gauge in the centre console and have the same behaviour from that one.
My biggest fear is burning a motor due to oil problems so as part of my priming the fuel pump I pull the fuse to the to fuel pump and let the motor crank a few times before the first start attempt.
I have a full routine that I follow before the car comes close to starting to make sure no gremlins have crawled in while I wasn't looking.
What oil pressure are you guys seeing at idle?
Saving My 81 RX7
-
economiser
- Posts: 185
- Joined: Mon Oct 06, 2014 3:19 pm
Re: Saving My 81 RX7
When a 500-horse crate 502 comes out of the crate, direct from the GM assembly, with 5 PSI at hot idle, and that's the way it is, there's no need for anyone else to be worrying about anything more.
-
Lucky
- VIP User
- Posts: 2685
- Joined: Mon Nov 07, 2011 8:30 pm
- Location: Worthing, UK
- Been thanked: 5 times
Re: Saving My 81 RX7
At 5 psi in a rotary the oil won't even make it out of the end of the E-shaft, let alone support massive bearing surfaces like the rotor bearings 
I'd want to see a lot more than that gauge is showing, not sure offhand what mine is at idle but at cruising revs (3,000), say) mine usually sits over 60psi.
I'd want to see a lot more than that gauge is showing, not sure offhand what mine is at idle but at cruising revs (3,000), say) mine usually sits over 60psi.
-
economiser
- Posts: 185
- Joined: Mon Oct 06, 2014 3:19 pm
Re: Saving My 81 RX7
Maybe I can't argue that, but a crank bearing is a crank bearing, Chevy, Ford, or Honda, and it is bearing clearances that determine volume. Maybe a rotary needs volume, but I can't yet believe the pressure matters when you don't even have lifters. And of all the parts of a BBC V8, the thing lack of pressure would hurt first is lifters. So maybe I stand partly corrected, maybe you confused volume with pressure.
Re: Saving My 81 RX7
Hi Everyone! Been a long time.... Work has been a serious problem over the last several months....
Sad days are coming.... My RX7 is being sold.... Circumstances have changed and given me no option but to sell the car.... I don't know how anyone manages to sell their car, feels like trying to sell your child.
Sad days are coming.... My RX7 is being sold.... Circumstances have changed and given me no option but to sell the car.... I don't know how anyone manages to sell their car, feels like trying to sell your child.
-
ian65
- Admin
- Posts: 6402
- Joined: Wed Mar 30, 2011 12:11 am
- Has thanked: 315 times
- Been thanked: 376 times
Re: Saving My 81 RX7
that's sad news Keith but changing circumstances mean sometimes cars have to go...it's happened plenty of times to me.
Keeping popping onto the forum every now and again.... you never know, you might get back into a 1st gen some day.
Keeping popping onto the forum every now and again.... you never know, you might get back into a 1st gen some day.
1999 Jaguar XJR V8 Supercharged
1992 Peugeot 205 1.9 GTI
2003 Mercedes SLK 200 Kompressor
Re: Saving My 81 RX7
Thanks Ian. My wife and I have already decided that we will someday own another 1st Gen, one way or another. But I think the first one will always have a special place....
-
spoddy
- VIP User
- Posts: 1027
- Joined: Sun Jun 19, 2011 10:39 pm
- Location: N.Ireland
- Been thanked: 1 time
Re: Saving My 81 RX7
is there a friend who might be interested in buying and would sell back to you when you could afford to buy it back?Ghostkls wrote:Hi Everyone! Been a long time.... Work has been a serious problem over the last several months....
Sad days are coming.... My RX7 is being sold.... Circumstances have changed and given me no option but to sell the car.... I don't know how anyone manages to sell their car, feels like trying to sell your child.