oil pressure

My 1984 fj60 tends to run pretty low oil pressure when its hot outside. In the cooler months and in the mornings it reads just fine. What could cause the low pressure readings when its hot out?

All- 97 HZJ80, 1FZ. No CEL, but water temp and oil pressure guages are dead. I've read the tech threads on them both, but again, no CEL. Should I bother? Is the water temp being dead keeping me in open loop and just going to dump fuel? Fluid service this morning, plenty of oil. Radiator is...

Just put a rebuilt 1F in my 1973 FJ40.I am using mallory dual point ignition. Checked that the nub at bottom of distributor is long enough to drive oil pump.Had good oil pressure when first started. But after she warms it drops down to marginal on the gauge.I worry about this bcause my last...

I recently removed my intake manifold to replace the manifold gaskets. Anyhow I put it back together and now the oil pressure gauge isn't working right. I can't remember how I took it apart as the project spanned many weeks. I have these two plugs left over. One is 24v the other might be...

Hello first post in this thread. I have bought a 1989 ln106 with 276000 kms on it. Was just asking about the oil pressure gauge on this. When i start up and idle the needle goes up about quarter which is still just below the L when rpm get to around 1300 the needle gets to the L and them after...

Evening, What do people here generally see on their OEM oil pressure gauge w/ factory 2F motor!? I’m sure these aren’t incredibly accurate gauges, but, just curious what’s “normal” out there. This seems a little high (attached photo). Thanks!! 1978 FJ40

I'm aware that a very old 1hz like the one in my 80 has a lot of wear and potentially blow-by. I'm noticing when driving that the oil pressure is not coming much above 1/3 anymore and when idling (hot motor) the pressure goes to about 1/6 on the gauge. I always change the filter with a genuine...

Installed new oil filter housing, coolant hoses, oil pressure gauge switch, and valve cover gaskets. Now the oil pressure is running much lower than before. So what’s the normal range? With engine warm, I’m idling at about as low 10. Upon acceleration, 45-50, cruising at 30. Is this normal...

I thought since I was changing my oil it would be a good time to install SOR stainless fuel filter lines as some preventative maintenance given my 11/69 hoses did not look long for this world. I was being conservative with my torque and when I checked for leaks I had a small one on the oil...

Get your speedo working again! Complete Instrument Clusters with all guages 93 to 97 $100, Speedo Only $90 Complete Instrument Cluster 91-92 $135, Speed Sensors from Transfer Case $85 each All items can be shipped.

Putting the engine back together after a valve job. Where the rocker arm assembly meets the head, there is no sealant or gasket. With the oil passage going through the two parts, wont oil leak out the side of that joint and reduce oil pressure to the rockers? Should some sort of sealant around...

I have a 1970 FJ40 with a small block 350. I’m not sure of the year of the motor. I’m trying to find out the operating ohm range for the oil pressure sending unit. I can’t seem to find the answer anywhere. I’m new to the mechanic game so over explaining is welcomed. 😁

Help me out guys. My wife’s 2002 Tacoma with a 3.4 has the oil light barely flickering after about 30 minutes of highway driving. This just started after its first oil change by me (or at least noticed by me as I just started commuting with it) - a JDM engine was put in about a year ago. 5w-30...

Has anyone experienced a momentary loss of oil pressure on a really short stop ('92 FJ80 3FE)? I did today. Never happened before .1/3 qt low on oil. Are there windage baffles in the pan? I'm guessing the pickup is in the rear. ( I can easily check the FSM for that.) Only reason I know is...

Greetings, Please, do you know what is meaning of this sound? In the first place I thought maybe it has something with high oil pressure but now, to me oil looks ok at this speed or? And there is ever present "tic tic" sound ( valves maybe) when ever I press throttle pedal. It is fzj 80 1997...

In a few days I'm leaving for a 2 week trip through Mexico (with several days of fairly remote off-road excursion...). Any help sorting this before I go is appreciated. I replaced my starter this week on my 1999 Land Cruiser, and now the gauge in the dash indicates no oil pressure. While I was...

Well, like many on here, I’ve experienced the dead oil pressure gauge in the dash of my 80. While most would probably say, “replace the gauge and move on”, I am really cheap, and felt like taking the dash apart… Cliff notes: I ended up bending the gauge internals to get it to read again...

I'm troubleshooting my 74-2F oil pressure gauge and am at a point where I'd like to know the expected ohm range for a warm motor at idle VS running RPM 2-3k? The current sender is reading about 10 ohms regardless of RPM and a new one I picked up from NAPA is sticking at about 35 ohms also...

Hello everybody, I am a new member to this forum, but have been reading here for some years and have found lots of helpful info here. I have a 96 LC that I have owned for a few years. 212k on the odometer. A couple of weeks ago I started intermediately losing power steering when turning into...

ok guys, i installed engine and did everything correctly. i went to turn over and it runs. however the oil pressure is zero. before i time it do i have to prime out pump or should it automatically read when turned on and running.