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Engine Specific Info and Questions => IDI Engine => Topic started by: flajer on January 04, 2008, 06:24:40 pm

Title: Oil pressure 1,9 TD AAZ engine
Post by: flajer on January 04, 2008, 06:24:40 pm
Hi,

can anyone help me with numbers in Psi or Kg for oilpressure at idle, 2000, 3000 rpm, and max pressure in a warm AAZ?

Stefan
Title: Oil pressure 1,9 TD AAZ engine
Post by: jimfoo on January 04, 2008, 06:35:03 pm
Mine had 40 psi @ 2000 and 50-55 @ 4000 warm.
Title: Oil pressure 1,9 TD AAZ engine
Post by: Vincent Waldon on January 04, 2008, 06:38:58 pm
The service manual gives one number:

- at the oil filter flange
- 2000 RPM
- engine at normal temp (fan has cycled once)

= minimum of 2 bar
Title: Oil pressure 1,9 TD AAZ engine
Post by: flajer on January 04, 2008, 06:59:28 pm
sorry
Title: Oil pressure 1,9 TD AAZ engine
Post by: flajer on January 04, 2008, 07:01:20 pm
Where are my problem? brand new engine head, turbo, oilpump, grinded crank, all bearings new, oversize pistons and rings 40000km.

Tested with 2 pressure meters on the engine head one electric and one mecanical.

23 psi @ 2000rpm and 40 psi @ 3000 rpm , cold@ idle almost 80 psi

oil 10w50

could it be the oil injectors for spraying the pistons?

Stefan
Title: Oil pressure 1,9 TD AAZ engine
Post by: jimfoo on January 04, 2008, 08:39:22 pm
new intermediate shaft bearings as well? Inaccurate gauge or sender maybe?
A torbo which needs and diesn"t have an oil restrictor?
Title: Oil pressure 1,9 TD AAZ engine
Post by: Vincent Waldon on January 04, 2008, 09:33:55 pm
Quote from: "jimfoo"
new intermediate shaft bearings as well?


10X  !!

IB4T Andrew   :wink:

(learned some new forum speak from my 12-year-old today !!)
Title: Oil pressure 1,9 TD AAZ engine
Post by: burn_your_money on January 04, 2008, 11:44:48 pm
Quote from: "flajer"
Tested with 2 pressure meters on the engine head one electric and one mecanical.


The bentley numbers are for on the oil filter flange. You will have lower oil pressure at the head
Title: Oil pressure 1,9 TD AAZ engine
Post by: Vincent Waldon on January 04, 2008, 11:57:14 pm
Quote from: "burn_your_money"
Quote from: "flajer"
Tested with 2 pressure meters on the engine head one electric and one mecanical.


The bentley numbers are for on the oil filter flange. You will have lower oil pressure at the head


Yup... lots lower... the lifters bleed tons of pressure.  Your numbers look quite close to what I get when I measure at the head...
Title: Oil pressure 1,9 TD AAZ engine
Post by: flajer on January 05, 2008, 02:45:40 am
new intermediate shaft bearings and new bearings on the oilpump shaft as well.

IŽll try to messure on the oil filter flange today.