What is your oil pressure at idle with a warmed up engine with hot oil?

19963.4lsr5

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For those of you with oil pressure gauges. Please post your oil pressure at idle with a engine that has its oil up to temp.


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Curious myself on what oil port, what thread pitch, what electric sending unit and gauge combo’s folks have.

this is adapter you will need.

Toyota to Aftermarket Oil Pressure Gauge Adapter

this is where you will want that adapter

<a href="https://imgur.com/Ht7UIBX"><img src="https://i.imgur.com/Ht7UIBX.png" title="source: imgur.com" /></a>

FSM specs for oil pressure
<a href="https://imgur.com/80HaLnh"><img src="https://i.imgur.com/80HaLnh.png" title="source: imgur.com" /></a>

I just have a test one

Engine Oil Pressure Test Kit

once I have verified the pressure I will remove it. you can leave this one on the truck and just tuck it over by the battery and drive around. then check pressure whenever you want.
 
Any one know what the threads are for this pressure gauge block port? I like to get a T so I can port in a A/M gauge or tester from time to time. Could make a decent mod and have a dash oil pressure gauge like years past..:-)
 
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Any one know what the threads are for this pressure gauge block port? I like to get a T so I can port in a A/M gauge or tester from time to time. Could make a decent mod and have a dash oil pressure gauge like years past..:-)

like I posted above

1/8" National Pipe Thread to 1/8" British Standard Pipe

5vz has BSP and most aftermarket stuff in US is NPT

I have the yota shop one and it works fine. it's a bit tight in that spot but it does fit.
 
Thanks [MENTION=168172]sleepydad[/MENTION] and@ Dieselchessy. I am liking that threaded one as we don't have a lot of space in that area as sleepydad pointed out. :-)

I would have both the OEM one in and the A/M digital one in. I have no reason for a mechanical if I am going to place one in my console. I like that we can just put some thread tape on and nipple that off if need be as well. :-)
 
I have one. And to answer the OPs question at idle I see 4 to 6 lbs of pressure. Rubbing down the highway at 2500 rpm it's around 45 or 50 and max I've seen it was 80 at redline. My sensor is installed in the port that's lower down on the block than the factory pressure switch.

Coming from the world of small block Chevy's where they typically have 30 to 40 psi at idle the super low pressure freaked me out but the fsm specs 4 lbs as normal and the warning light comes on at 2lbs
 
Bump to the top. Anyone with an oil pressure gauge installed on the 3.4l?


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This is for my 3rz, not what you need but maybe informative.

14 psi at hot idle RPM and 70 psi at 3,000 RPM.

These may not be exact as I bought a cheap gauge. I used the harbour freight cheapie oil pressure tester while replacing the sender due to dripping oil.
 
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I have one. And to answer the OPs question at idle I see 4 to 6 lbs of pressure. Rubbing down the highway at 2500 rpm it's around 45 or 50 and max I've seen it was 80 at redline. My sensor is installed in the port that's lower down on the block than the factory pressure switch.



Coming from the world of small block Chevy's where they typically have 30 to 40 psi at idle the super low pressure freaked me out but the fsm specs 4 lbs as normal and the warning light comes on at 2lbs



Thanks. How many miles are on the engine?


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Black798,

Would you tell us what sensor/gauge you installed?

I see lots on the net but it seems to be $30 China stuff or a jump to $200 race stuff.
A little leery of the China stuff, afraid the sensor may spring a leak, and the sensors look big.
 
Black798,

Would you tell us what sensor/gauge you installed?

I see lots on the net but it seems to be $30 China stuff or a jump to $200 race stuff.
A little leery of the China stuff, afraid the sensor may spring a leak, and the sensors look big.

My gauge is a glowshift. I have 4 gauges from them and have yet to have an issue.
GlowShift Tinted 7 Color Oil Pressure Gauge

And a picture of where I installed the sensor itself, circled in white. Stock sensor is up on the right hand side, I did the because 1 I didnt want to mess with a t fitting, and 2 it was easier to access this port. I cant say for certain since I stole the adapter fitting out of my harbor freight oil pressure tester kit but I fairly certain this port was a npt thread and not a bpt.
 

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The block should be 1/8-28 bps and sensor is listed as 1/8-27 npt.

An adapter of that type is listed earlier in this thread from Yota shop.
 
Black798,



Would you tell us what sensor/gauge you installed?



I see lots on the net but it seems to be $30 China stuff or a jump to $200 race stuff.

A little leery of the China stuff, afraid the sensor may spring a leak, and the sensors look big.



I bought an innova mechanical and used the copper tubing for the 4Runner.

On the CJ I put a Stewart-Warner mechanical gauge in and used copper tubing. No leaks in 10 years.


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Also my adapter came in today. So Monday or Tuesday I’ll remove my NTP Tee and install the correct adapter.

I remove the Alternator to get more access


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From a similar thread a few years back:

The spec I have for the 5VZ-FE is 4.3 psi at idle. That's on an engine at operating temperature, with oil that is also at full operating temperature.

I should add that's with a Toyota recommended 5w30 oil.
 

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