Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Welcome to OOF

Pages: 1 [2] 3 4  All   Go Down

Author Topic: this is not oil thread  (Read 4968 times)

0 Members and 1 Guest are viewing this topic.

Marks DTM Calib

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • West Bridgford
  • Posts: 34095
  • Git!
    • View Profile
Re: this is not oil thread
« Reply #15 on: 19 September 2011, 09:47:29 »
Quote
It could just be the oil pressure switch being faulty so Kevin's suggestion of plumbing in a gauge seems a good one :y

Low probability but, hope springs eternal!

But yes, a gauge would be a wide move
Logged

Martin_1962

  • Guest
Re: this is not oil thread
« Reply #16 on: 19 September 2011, 09:53:52 »
Quote
Quote
...
Ah, is this a "no sump" engine?

It has a sump, just no sump drain plug.  ;)


You turn the car upside down to drain the oil out
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39873
    • ML350 TDM SmartRoadster
    • View Profile
Re: this is not oil thread
« Reply #17 on: 19 September 2011, 09:55:53 »
Quote
Sounds like it may need shorter change intervals.

I guess also that its an oil suck setup which tend to resul in sludge in the sump more (sadly).

I dont like the sound of the flickering lamp, they normaly come on at the 12-15psi mark where as the oil pressure even when hot should be 30+.

Removal of the sump was one of the first things done when the light started flickering, and the sump itself was clear of all sludge.
(just loads of condensation/mayo on the walls)
Only problem was something like Hermatite blue had been put on with a shovel and the excess inside the sump had fallen down & been picked up by the pump.

Removing this lot made a huge difference - the cam chain has a hydraulic tensioner so even though it's still a bit noisy - it's loads better that it was.
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39873
    • ML350 TDM SmartRoadster
    • View Profile
Re: this is not oil thread
« Reply #18 on: 19 September 2011, 09:57:36 »
Quote
It could just be the oil pressure switch being faulty ....

New switch fitted ....... which COULD still be faulty  :-/
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39873
    • ML350 TDM SmartRoadster
    • View Profile
Re: this is not oil thread
« Reply #19 on: 19 September 2011, 10:00:34 »
Quote
Quote
Quote
...
Ah, is this a "no sump" engine?

It has a sump, just no sump drain plug.  ;)


You turn the car upside down to drain the oil out

Tried that, but lost the washer water too!  ;D ;D ;D
Logged

Kevin Wood

  • Global Moderator
  • *****
  • Offline Offline
  • Gender: Male
  • Alton, Hampshire
  • Posts: 36484
    • Jaguar XE 25t, Westfield
    • View Profile
Re: this is not oil thread
« Reply #20 on: 19 September 2011, 10:09:07 »
If this has happened before then clearly the oil pressure is marginal. If the switch has been changed it's unlikely to be that. :-/

I think I'd be looking to check the pressure relief valve next. If it's had all that sealant in the pickup it's not unlikely that some has ended up jammed in the relief valve.
Logged
Tech2 services currently available. See TheBoy's price list: http://theboy.omegaowners.com/

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39873
    • ML350 TDM SmartRoadster
    • View Profile
Re: this is not oil thread
« Reply #21 on: 19 September 2011, 10:12:17 »
Quote
If this has happened before then clearly the oil pressure is marginal. If the switch has been changed it's unlikely to be that. :-/

I think I'd be looking to check the pressure relief valve next. If it's had all that sealant in the pickup it's not unlikely that some has ended up jammed in the relief valve.

Good idea.  :y


Logged

aaronjb

  • Guest
Re: this is not oil thread
« Reply #22 on: 19 September 2011, 10:24:53 »
Quote
Quote
It could just be the oil pressure switch being faulty ....

New switch fitted ....... which COULD still be faulty  :-/

Do you know what pressure the switch activates at? On the MR2 it comes on at 3.8psi, which is frighteningly low (as many people say on that forum, it's really not an oil pressure warning lamp, it's a "Please visit the dealer for a new engine" lamp!) - I'd be worried if it was flickering and that's it's activation point.. if it were higher (say, 10psi or so) I might not worry so much.
Logged

Marks DTM Calib

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • West Bridgford
  • Posts: 34095
  • Git!
    • View Profile
Re: this is not oil thread
« Reply #23 on: 19 September 2011, 10:27:28 »
Sounds like you have a few thinsg to check then Andy.

Given the pics you posted, I would not be overly surprised if some bearing wear had occured and hence the oil pressure issues.
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39873
    • ML350 TDM SmartRoadster
    • View Profile
Re: this is not oil thread
« Reply #24 on: 19 September 2011, 11:17:46 »
Quote
...
Do you know what pressure the switch activates at? ....

No. I'll see if I can find out.  :)
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39873
    • ML350 TDM SmartRoadster
    • View Profile
Re: this is not oil thread
« Reply #25 on: 19 September 2011, 11:20:34 »
Quote
...

Given the pics you posted, I would not be overly surprised if some bearing wear had occured and hence the oil pressure issues.

Mmmm  :( That's what I'm frightened of.  :'( :'(

Goes to show how much better a well serviced car is compared with one that isn't.  ::)

Maybe an oil change with hypoid 90 & sell the bugger  ::) ::)
Logged

Kevin Wood

  • Global Moderator
  • *****
  • Offline Offline
  • Gender: Male
  • Alton, Hampshire
  • Posts: 36484
    • Jaguar XE 25t, Westfield
    • View Profile
Re: this is not oil thread
« Reply #26 on: 19 September 2011, 11:26:01 »
Quote
Quote
...
Do you know what pressure the switch activates at? ....

No. I'll see if I can find out.  :)

If this one is OEM spec. it suggests not a lot.  :-/

http://seekpart24.com/hella/oil-pressure-switch-6zl008280061?c=100478&at=13106

Quote
Switch Pressure [bar]: 0,15-0,35

Logged
Tech2 services currently available. See TheBoy's price list: http://theboy.omegaowners.com/

henryd

  • Omega Lord
  • *****
  • Offline Offline
  • Gender: Male
  • west cornwall
  • Posts: 8810
  • VW Touareg R5 tdi Auto
    • View Profile
Re: this is not oil thread
« Reply #27 on: 19 September 2011, 12:19:23 »
Autodata suggests that oil pressure should be 2.0-2.5 bar at 750-950 rpm

HTH :y
Logged
other rides 
  mk3 Volvo v70 2.0 Diesel ,Citroen C2, Pug 306 cabriolet
  Sterling elite trekker pikey wagon

Marks DTM Calib

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • West Bridgford
  • Posts: 34095
  • Git!
    • View Profile
Re: this is not oil thread
« Reply #28 on: 19 September 2011, 12:29:14 »
Quote
Quote
Quote
...
Do you know what pressure the switch activates at? ....

No. I'll see if I can find out.  :)

If this one is OEM spec. it suggests not a lot.  :-/

http://seekpart24.com/hella/oil-pressure-switch-6zl008280061?c=100478&at=13106

Quote
Switch Pressure [bar]: 0,15-0,35


Kin ell, thats bugger all of bugger all!

I thought the Vx one was low at 0.5 Bar
« Last Edit: 19 September 2011, 12:32:30 by Mark »
Logged

aaronjb

  • Guest
Re: this is not oil thread
« Reply #29 on: 19 September 2011, 13:19:56 »
Quote
Quote
Quote
Quote
...
Do you know what pressure the switch activates at? ....

No. I'll see if I can find out.  :)

If this one is OEM spec. it suggests not a lot.  :-/

http://seekpart24.com/hella/oil-pressure-switch-6zl008280061?c=100478&at=13106

Quote
Switch Pressure [bar]: 0,15-0,35


Kin ell, thats bugger all of bugger all!

I thought the Vx one was low at 0.5 Bar

Yeah, much like the Toyota one it's not a "warning: there's something amiss" light it's now a "congratulations, you're boned!" light  :-/

Granted if it's only flickering at idle it's probably not doing too much damage - as long as the pressure is healthy off idle. But what cars come fitted with oil pressure gauges these days?  :(
Logged
Pages: 1 [2] 3 4  All   Go Up
« previous next »
 

Page created in 0.01 seconds with 17 queries.