Oil pressure on my Trooper

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N

Nige

Guest
My Trooper has an oil pressure gauge fitted, around town it stays around
2kg/cm at idle & 4 at double idle. On a long run at 70-80mph it goes down to
about 2.2 at 3 times idle & 1.8 at idle (if I stop etc) is this an effect of
the oil getting hotter & thinner due to the run etc or is it likely to be
something else. The machine runs sweet as a nut with no oil use I can see. I
ask in this group as the Isuzu group is crap!

Idle speed is 800rpm if it matters.

Ta

Nige


 
Why not try...uk.rec.cars.4x4 ...?

--
Wolverine
Big Red '93 110 CSW


 

"Wolverine" <[email protected]> wrote in message
news:[email protected]...
> Why not try...uk.rec.cars.4x4 ...?

Simply because the folk here are genuinely knowledgeable about this kind of
thing, most folk there don't know as much as they think.

If it bother you - sorry.

Nige


 
No it doesn't bother me. I just thought a general 4x4 group might be able to
help. When you said you'd tried the Isuzu group, I couldn't have known you'd
already tried 'uk.rec.cars.4x4'.
I'm sure someone here will be able to help you solve the problem.
Good luck.

--
Wolverine
Big Red '93 110 CSW


 
On or around Thu, 8 Jul 2004 19:24:50 +0100, "Nige"
<[email protected]> enlightened us thusly:

>My Trooper has an oil pressure gauge fitted, around town it stays around
>2kg/cm at idle & 4 at double idle. On a long run at 70-80mph it goes down to
>about 2.2 at 3 times idle & 1.8 at idle (if I stop etc) is this an effect of
>the oil getting hotter & thinner due to the run etc or is it likely to be
>something else. The machine runs sweet as a nut with no oil use I can see. I
>ask in this group as the Isuzu group is crap!
>
>Idle speed is 800rpm if it matters.

what's that in sensible units, and/or what's the spec for it? these are
things you need to know.

--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
"Any man's death diminishes me, because I am involved in Mankind; and
therefore never send to know for whom the bell tolls, it tolls for thee"
John Donne (1571? - 1631) Devotions, XVII
 
Nige typed:
> My Trooper has an oil pressure gauge fitted, around town it stays around
> 2kg/cm at idle & 4 at double idle. On a long run at 70-80mph it goes down
> to about 2.2 at 3 times idle & 1.8 at idle (if I stop etc) is this an
> effect of the oil getting hotter & thinner due to the run etc or is it
> likely to be something else. The machine runs sweet as a nut with no oil
> use I can see. I ask in this group as the Isuzu group is crap!

I'd guess that if an oil pressure gauge is fitted as standard, there would
be reference to it, and it's safe working range, in the owners or workshop
manual.


--
Paul ...

(8(|) ... Homer Rocks


 
Austin Shackles wrote:
> On or around Thu, 8 Jul 2004 19:24:50 +0100, "Nige"
> <[email protected]> enlightened us thusly:
>
>
>>My Trooper has an oil pressure gauge fitted, around town it stays around
>>2kg/cm at idle & 4 at double idle. On a long run at 70-80mph it goes down to
>>about 2.2 at 3 times idle & 1.8 at idle (if I stop etc) is this an effect of
>>the oil getting hotter & thinner due to the run etc or is it likely to be
>>something else. The machine runs sweet as a nut with no oil use I can see. I
>>ask in this group as the Isuzu group is crap!
>>
>>Idle speed is 800rpm if it matters.
>
>
> what's that in sensible units, and/or what's the spec for it? these are
> things you need to know.
>
1 kg/cm2 is approx 15psi, so a hot idle pressure of 27 psi or so is
fine. I'd guess that the drop when hot is merely that the oil has
finally come up to temperature and is nothing to worry about. What
grade of oil are you using, and are you changing it regularly? For one
of these motors (assuming it's a diesel) I'd suggest a CH-4 or higher
rated 15W/40 and change it every 3000 mile or 6 months, and change the
filter every second oil change. Don't run a lighter oil than this if
you can help it as Trooper diesel motors (especially the turbo ones)
have a real problem with firing lighter oils out the breather - I've
built several oil separators for these to overcome this problem.

--
EMB
change two to number to reply
 
Oil pressure or lack of it is something I think I am better off not knowing
about :)

If it is still running in a weeks time, I won't be surprised but most people
with a little lerning will be.

--
Larry
Series 3 rust and holes


"Paul - xxx" <[email protected]> wrote in message
news:[email protected]...
> Nige typed:
> I'd guess that if an oil pressure gauge is fitted as standard, there would
> be reference to it, and it's safe working range, in the owners or workshop
> manual.
>
>
> --
> Paul ...
>
> (8(|) ... Homer Rocks
>
>


 
On or around Fri, 09 Jul 2004 09:30:51 +1200, EMB <[email protected]>
enlightened us thusly:

>Austin Shackles wrote:
>> On or around Thu, 8 Jul 2004 19:24:50 +0100, "Nige"
>>
>1 kg/cm2 is approx 15psi, so a hot idle pressure of 27 psi or so is
>fine. I'd guess that the drop when hot is merely that the oil has
>finally come up to temperature and is nothing to worry about. What
>grade of oil are you using, and are you changing it regularly? For one
>of these motors (assuming it's a diesel) I'd suggest a CH-4 or higher
>rated 15W/40 and change it every 3000 mile or 6 months, and change the
>filter every second oil change. Don't run a lighter oil than this if
>you can help it as Trooper diesel motors (especially the turbo ones)
>have a real problem with firing lighter oils out the breather - I've
>built several oil separators for these to overcome this problem.

all sounds reasonable, except that I've never understood, bearing in mind
the cheapness and dubious quality of ordinary commercial oil filters, the
reasoning behind not changing them every oil change. The addition cost
(typical filters are no more than a tenner) makes the saving so small (if
you do any amount of miles) as not to be worth it - and thereby not using a
partly-blocked filter.

Modern oils are probably quite OK for 5 or 6000 mile changes in modern
engines, too.

mind, your comment about not running thin oil is getting to be a pain these
days. It's getting very difficult to get decent oil which isn't thin,
without paying an arm and a leg for it.
--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
0123456789112345678921234567893123456789412345678951234567896123456789712345
1 weebl: What's this? | in recognition of the fun that is weebl and bob
2 bob: it a SigRuler! | check out the weebl and bob archive:
3 weebl: How Handy! | http://www.weebl.jolt.co.uk/archives.php
 

"EMB" <[email protected]> wrote in message
news:[email protected]...
> Austin Shackles wrote:
> > On or around Thu, 8 Jul 2004 19:24:50 +0100, "Nige"
> > <[email protected]> enlightened us thusly:
> >
> >
> >>My Trooper has an oil pressure gauge fitted, around town it stays around
> >>2kg/cm at idle & 4 at double idle. On a long run at 70-80mph it goes
down to
> >>about 2.2 at 3 times idle & 1.8 at idle (if I stop etc) is this an
effect of
> >>the oil getting hotter & thinner due to the run etc or is it likely to
be
> >>something else. The machine runs sweet as a nut with no oil use I can
see. I
> >>ask in this group as the Isuzu group is crap!
> >>
> >>Idle speed is 800rpm if it matters.
> >
> >
> > what's that in sensible units, and/or what's the spec for it? these are
> > things you need to know.
> >
> 1 kg/cm2 is approx 15psi, so a hot idle pressure of 27 psi or so is
> fine. I'd guess that the drop when hot is merely that the oil has
> finally come up to temperature and is nothing to worry about. What
> grade of oil are you using, and are you changing it regularly? For one
> of these motors (assuming it's a diesel) I'd suggest a CH-4 or higher
> rated 15W/40 and change it every 3000 mile or 6 months, and change the
> filter every second oil change. Don't run a lighter oil than this if
> you can help it as Trooper diesel motors (especially the turbo ones)
> have a real problem with firing lighter oils out the breather - I've
> built several oil separators for these to overcome this problem.
>
> --
> EMB
> change two to number to reply

10/40 is in right now. I'll have it changed!

Cheers

Nige


 

"Wolverine" <[email protected]> wrote in message
news:[email protected]...
> Why not try...uk.rec.cars.4x4 ...?

Simply because the folk here are genuinely knowledgeable about this kind of
thing, most folk there don't know as much as they think.

If it bother you - sorry.

Nige


 
No it doesn't bother me. I just thought a general 4x4 group might be able to
help. When you said you'd tried the Isuzu group, I couldn't have known you'd
already tried 'uk.rec.cars.4x4'.
I'm sure someone here will be able to help you solve the problem.
Good luck.

--
Wolverine
Big Red '93 110 CSW


 
On or around Thu, 8 Jul 2004 19:24:50 +0100, "Nige"
<[email protected]> enlightened us thusly:

>My Trooper has an oil pressure gauge fitted, around town it stays around
>2kg/cm at idle & 4 at double idle. On a long run at 70-80mph it goes down to
>about 2.2 at 3 times idle & 1.8 at idle (if I stop etc) is this an effect of
>the oil getting hotter & thinner due to the run etc or is it likely to be
>something else. The machine runs sweet as a nut with no oil use I can see. I
>ask in this group as the Isuzu group is crap!
>
>Idle speed is 800rpm if it matters.

what's that in sensible units, and/or what's the spec for it? these are
things you need to know.

--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
"Any man's death diminishes me, because I am involved in Mankind; and
therefore never send to know for whom the bell tolls, it tolls for thee"
John Donne (1571? - 1631) Devotions, XVII
 
Nige typed:
> My Trooper has an oil pressure gauge fitted, around town it stays around
> 2kg/cm at idle & 4 at double idle. On a long run at 70-80mph it goes down
> to about 2.2 at 3 times idle & 1.8 at idle (if I stop etc) is this an
> effect of the oil getting hotter & thinner due to the run etc or is it
> likely to be something else. The machine runs sweet as a nut with no oil
> use I can see. I ask in this group as the Isuzu group is crap!

I'd guess that if an oil pressure gauge is fitted as standard, there would
be reference to it, and it's safe working range, in the owners or workshop
manual.


--
Paul ...

(8(|) ... Homer Rocks


 
Austin Shackles wrote:
> On or around Thu, 8 Jul 2004 19:24:50 +0100, "Nige"
> <[email protected]> enlightened us thusly:
>
>
>>My Trooper has an oil pressure gauge fitted, around town it stays around
>>2kg/cm at idle & 4 at double idle. On a long run at 70-80mph it goes down to
>>about 2.2 at 3 times idle & 1.8 at idle (if I stop etc) is this an effect of
>>the oil getting hotter & thinner due to the run etc or is it likely to be
>>something else. The machine runs sweet as a nut with no oil use I can see. I
>>ask in this group as the Isuzu group is crap!
>>
>>Idle speed is 800rpm if it matters.
>
>
> what's that in sensible units, and/or what's the spec for it? these are
> things you need to know.
>
1 kg/cm2 is approx 15psi, so a hot idle pressure of 27 psi or so is
fine. I'd guess that the drop when hot is merely that the oil has
finally come up to temperature and is nothing to worry about. What
grade of oil are you using, and are you changing it regularly? For one
of these motors (assuming it's a diesel) I'd suggest a CH-4 or higher
rated 15W/40 and change it every 3000 mile or 6 months, and change the
filter every second oil change. Don't run a lighter oil than this if
you can help it as Trooper diesel motors (especially the turbo ones)
have a real problem with firing lighter oils out the breather - I've
built several oil separators for these to overcome this problem.

--
EMB
change two to number to reply
 
Oil pressure or lack of it is something I think I am better off not knowing
about :)

If it is still running in a weeks time, I won't be surprised but most people
with a little lerning will be.

--
Larry
Series 3 rust and holes


"Paul - xxx" <[email protected]> wrote in message
news:[email protected]...
> Nige typed:
> I'd guess that if an oil pressure gauge is fitted as standard, there would
> be reference to it, and it's safe working range, in the owners or workshop
> manual.
>
>
> --
> Paul ...
>
> (8(|) ... Homer Rocks
>
>


 
On or around Fri, 09 Jul 2004 09:30:51 +1200, EMB <[email protected]>
enlightened us thusly:

>Austin Shackles wrote:
>> On or around Thu, 8 Jul 2004 19:24:50 +0100, "Nige"
>>
>1 kg/cm2 is approx 15psi, so a hot idle pressure of 27 psi or so is
>fine. I'd guess that the drop when hot is merely that the oil has
>finally come up to temperature and is nothing to worry about. What
>grade of oil are you using, and are you changing it regularly? For one
>of these motors (assuming it's a diesel) I'd suggest a CH-4 or higher
>rated 15W/40 and change it every 3000 mile or 6 months, and change the
>filter every second oil change. Don't run a lighter oil than this if
>you can help it as Trooper diesel motors (especially the turbo ones)
>have a real problem with firing lighter oils out the breather - I've
>built several oil separators for these to overcome this problem.

all sounds reasonable, except that I've never understood, bearing in mind
the cheapness and dubious quality of ordinary commercial oil filters, the
reasoning behind not changing them every oil change. The addition cost
(typical filters are no more than a tenner) makes the saving so small (if
you do any amount of miles) as not to be worth it - and thereby not using a
partly-blocked filter.

Modern oils are probably quite OK for 5 or 6000 mile changes in modern
engines, too.

mind, your comment about not running thin oil is getting to be a pain these
days. It's getting very difficult to get decent oil which isn't thin,
without paying an arm and a leg for it.
--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
0123456789112345678921234567893123456789412345678951234567896123456789712345
1 weebl: What's this? | in recognition of the fun that is weebl and bob
2 bob: it a SigRuler! | check out the weebl and bob archive:
3 weebl: How Handy! | http://www.weebl.jolt.co.uk/archives.php
 

"EMB" <[email protected]> wrote in message
news:[email protected]...
> Austin Shackles wrote:
> > On or around Thu, 8 Jul 2004 19:24:50 +0100, "Nige"
> > <[email protected]> enlightened us thusly:
> >
> >
> >>My Trooper has an oil pressure gauge fitted, around town it stays around
> >>2kg/cm at idle & 4 at double idle. On a long run at 70-80mph it goes
down to
> >>about 2.2 at 3 times idle & 1.8 at idle (if I stop etc) is this an
effect of
> >>the oil getting hotter & thinner due to the run etc or is it likely to
be
> >>something else. The machine runs sweet as a nut with no oil use I can
see. I
> >>ask in this group as the Isuzu group is crap!
> >>
> >>Idle speed is 800rpm if it matters.
> >
> >
> > what's that in sensible units, and/or what's the spec for it? these are
> > things you need to know.
> >
> 1 kg/cm2 is approx 15psi, so a hot idle pressure of 27 psi or so is
> fine. I'd guess that the drop when hot is merely that the oil has
> finally come up to temperature and is nothing to worry about. What
> grade of oil are you using, and are you changing it regularly? For one
> of these motors (assuming it's a diesel) I'd suggest a CH-4 or higher
> rated 15W/40 and change it every 3000 mile or 6 months, and change the
> filter every second oil change. Don't run a lighter oil than this if
> you can help it as Trooper diesel motors (especially the turbo ones)
> have a real problem with firing lighter oils out the breather - I've
> built several oil separators for these to overcome this problem.
>
> --
> EMB
> change two to number to reply

10/40 is in right now. I'll have it changed!

Cheers

Nige


 
Button bashing in practice for another round of Daley Thompson's
Decathlon, Austin Shackles <[email protected]> left
Shakespeare to the monkeys by typing...

<snip>
>
>all sounds reasonable, except that I've never understood, bearing in mind
>the cheapness and dubious quality of ordinary commercial oil filters, the
>reasoning behind not changing them every oil change. The addition cost
>(typical filters are no more than a tenner) makes the saving so small (if
>you do any amount of miles) as not to be worth it - and thereby not using a
>partly-blocked filter.
>
Just a small bottom-holding (anal retentive) point - a partly blocked
filter is more efficient. As in more efficient at removing smaller
particles. Personally, I'd remove all the useless extraneous metal from
around the engine and fit a Landrover ;-)
--
O O :-o O O
| I so did it again |
O :-o O
Weallhatebillgates would be found at hotmail
 
On or around Sat, 10 Jul 2004 12:05:13 +0100, weallhatebillgates
<[email protected]> enlightened us thusly:

>Just a small bottom-holding (anal retentive) point - a partly blocked
>filter is more efficient. As in more efficient at removing smaller
>particles. Personally, I'd remove all the useless extraneous metal from
>around the engine and fit a Landrover ;-)

teehee.

actually, the 3.1 Isuzu is widely regarded as a good engine, and would
probably suit a LR quite well, provided yer an Ozzie or a heretic.

--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
In Touch: Get in touch with yourself by touching yourself.
If somebody is watching, stop touching yourself.
from the Little Book of Complete B***ocks by Alistair Beaton.
 
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