Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
oil pressure
#1
What is the expected oil pressure for an xud? Fitted an oil cooler and Mines gone up I have a 100psi gauge and now isles warm at 50 and off the gauge when driving. Where without cooler was 20psi idle and 70/80 driving
TD04 11mm Sedan, now 2.1 vnt

Sedan Project http://306oc.co.uk/forum/thread-5763.html

Provence Dturbo Dead
Blaze 1.6 Dead
China 5dr '6 Death by cambelt failure
Matt White HDI estate Death by wiring
Sedan Dturbo aka triggers broom
Diablo estate Dturbo Living dead
Reply
Thanks given by:
#2
XUD9 engines should have a 5 bar pressure relief spring, so you shouldn't really be seeing more than that with hot oil. 5 bar is approximately 72psi, so that tallies up with the 70-80 figure that you were seeing before.

If it's gone up that dramatically since fitting the oil cooler and the reading is accurate, then I'd hazard a guess that the oil cooler must have a massive restriction somewhere.

Obviously lower oil temperature will mean thicker oil and more pressure, but I'd be surprised if you've had such a dramatic change in temperature that the pressure figures have changed that much. Big clue will be if the figures are also dramatically higher a few miles into a journey when the oil won't be fully upto temperature.
1990 Peugeot 205 GTi 1.9 // 1991 Peugeot 205 GTi 1.9 16v // 1992 Peugeot 205 GTi 1.9 // 1999 Peugeot 306 HDi Estate
Reply
Thanks given by:
#3
that is odd. As said there is a 5bar limiter basically.

Mine is 5 bar cold at idle.

Once warm about 2bar, climbs with rpm to no higher than about 4.5bar flat out
Wishes for more power...
Reply
Thanks given by:
#4
It stays same once warm even after 25 30 mins when I get to work Thats with oil temp at 80-85.,its only a small 9 row cooler

Where is the relief spring?
TD04 11mm Sedan, now 2.1 vnt

Sedan Project http://306oc.co.uk/forum/thread-5763.html

Provence Dturbo Dead
Blaze 1.6 Dead
China 5dr '6 Death by cambelt failure
Matt White HDI estate Death by wiring
Sedan Dturbo aka triggers broom
Diablo estate Dturbo Living dead
Reply
Thanks given by:
#5
Relief spring is part of the oil pump, sandwiched between the main body of the oil pump and the pickup casting.
1990 Peugeot 205 GTi 1.9 // 1991 Peugeot 205 GTi 1.9 16v // 1992 Peugeot 205 GTi 1.9 // 1999 Peugeot 306 HDi Estate
Reply
Thanks given by:
#6
Argh so not something easily checked then, Will try get another cooler to try its a second hand cooler so might as simply as a blockage in there
TD04 11mm Sedan, now 2.1 vnt

Sedan Project http://306oc.co.uk/forum/thread-5763.html

Provence Dturbo Dead
Blaze 1.6 Dead
China 5dr '6 Death by cambelt failure
Matt White HDI estate Death by wiring
Sedan Dturbo aka triggers broom
Diablo estate Dturbo Living dead
Reply
Thanks given by:


Possibly Related Threads…
Thread Author Replies Views Last Post
  Are cylinder pressure and boost pressure inextricably linked Flynn 55 4,864 18-01-2012, 08:19 PM
Last Post: Matty

Forum Jump:


Users browsing this thread: 1 Guest(s)