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Oil pressure - logbook Toyota Land Cruiser 1978

Today I finally realized my plan - I measured the oil pressure in the diesel engine with a mechanical pressure gauge.

On a cold 6,
after warming up at idle 2.5-3,
at an average speed of up to 7,
it does not go higher at any speed.

Feel better…

214 Comments
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s
somebody 24.01.22

So you are in the right hands :)

O
Odyssey4x4 24.01.22

Yes, full compliance with the manual. And the engine is over thirty...

s
somebody 24.01.22

With such pressure, you can ride and ride :)

s
somebody 24.01.22

understood)

O
Odyssey4x4 24.01.22

The sensor is worth it. And it shows something. More precisely, it shows a certain voltage in a certain circuit. And this indication depends on a number of random factors-contacts: on the sensor terminals, on the indicator terminals, on the health of the circuit in the indicator ... In short, I wanted to check it for a long time, because the replacement of the sensor did not clarify the picture - the arrow showed something different. I also changed the indicator to another one that is not new. Again, it's not clear.

Now I've measured it and I'm sure. In winter, I will put a mechanical pressure gauge on an ongoing basis. Plus an oil temperature gauge.

s
somebody 24.01.22

isn't it worth the sensor?

P
Paha40 24.01.22

Katala

But really, is there no sensor or something, on the panel?

there is but WHAT!
I can't see a damn thing about him either.

O
Odyssey4x4 24.01.22

This is exactly how I want to change it.

b
bone 24.01.22

Odyssey4x4

There is. But it is useful to know without intermediaries.

it’s necessary, like I have
a mechanical pressure gauge - a separate pipe goes from the engine to it. Everything is simple and there are no electricians =))))

P
Paha40 24.01.22

Odyssey4x4

But here he is not. I will put a mechanical pressure gauge and a temperature sensor with a whistle.

With a whistle, of course, the best option!

P
Paha40 24.01.22

I'll see where it goes from the small.

O
Odyssey4x4 24.01.22

There is a barrel. There is no small.

P
Paha40 24.01.22

Should be two, on one channel.
Tomorrow after tomorrow I'll get to the car and take a picture.
The first switch (barrel) the second lamp for cut-off (cone)

O
Odyssey4x4 24.01.22

One oil pressure sensor. By the way, maybe it has cut-offs, because the standard pressure gauge does not plow from it.

P
Paha40 24.01.22

As no, no need to offend Kiichiro Toyoda.
Everyone has it and you don't.

O
Odyssey4x4 24.01.22

But here he is not. I will put a mechanical pressure gauge and a temperature sensor with a whistle.

P
Paha40 24.01.22

Odyssey4x4

That's what I want to do. And also put a temperature indicator of oil and water with a sound alarm - you never know what happens, but you won’t notice it right away in an adrenaline frenzy.

What about the low pressure fuel cutoff sensor?
I only had hope for him and the old engine.
And he did not disappoint.
At the military 76 there was the same temperature cut-off.

K
Katala 24.01.22

about the sound, you're right
, a very useful thing
, or a red strobe

O
Odyssey4x4 24.01.22

That's what I want to do. And also put a temperature indicator of oil and water with a sound alarm - you never know what happens, but you won’t notice it right away in an adrenaline frenzy.

K
Katala 24.01.22

well, this is also correct,
you can output it separately

O
Odyssey4x4 24.01.22

There is. But it is useful to know without intermediaries.

K
Katala 24.01.22

But really, is there no sensor or something, on the panel?

K
Kulikoff Sun 24.01.22

Understood :)

O
Odyssey4x4 24.01.22

Dr.Cheak is standing on the operating table. So we decided not to vibrate it.

K
Kulikoff Sun 24.01.22

And Sanya did not measure on mine?

O
Odyssey4x4 24.01.22

Yes, I'm happy too. And I respect Kiichiro Toyoda even more

V
Vovan452 24.01.22

Well, you have pressure, You need to look for new ones like that! In general, a Toyota diesel engine has enough points for the eyes! Damn Japs!

P
Paha40 24.01.22

I join.
Kiichiro Toyoda should be respected already for the fact that such a wonderful device came off the assembly line of his factory.

O
Odyssey4x4 24.01.22

So for sure, and the conclusion is that the pressure reducing valve works as it should.

V
Vanilla Gorilla 24.01.22

Toyota really knows how to build an engine, I am very amazed that such an experienced engine gives pressure "according to the book.

I wanted to write about 7 points at any speed, and why it doesn't go higher. If I write a truth known to everyone, I'll forgive you :)
In order to ensure sufficient oil pressure at any engine operating conditions, and in order to eventually compensate for the wear of the oil pump itself and the engine (liners, camshaft bushings), the pump is designed to have excessive performance. And so that this excess pressure at high speeds does not squeeze out the seals, does not break the filter, there is a pressure reducing valve in the system, which, when a certain threshold is exceeded (in your case, apparently, this is 7 points) works and dumps the "excess" oil back into pallet.

O
Odyssey4x4 24.01.22

In recent years, semi-synthetic and mineral water Motul 10-30 of the simplest series

And when they measured most likely Kendal semi-synthetic

s
sav-liana 24.01.22

What oil was used?