Oil System chacteristics after Jdub's Oil System Upgrade

[CyFi6]

My 7m is fresh and has the following done with the oil system
-Used pump, clearances checked
-Shimmed pump relief ~5mm
-Cams re clearanced
-Toyota select fit rod/main bearings, resized rods, clearances set right around .0015" mains and ~.0012" rod
-New oil pump shaft bearings
-New squirter bolts
-Stock filter head with like 1 washer shim

Valvoline conventional 5w30
Hot idle: ~9psig
Hot 3000 RPM: ~42/43psig

These were taken using a mechanical oil pressure gauge

 

[CajunKenny]

Ok. I got my mechanical oil pressure gauge in.

I haven't taken any op temp readings yet; but, at cold start the mechanical gauge reads 47 psi while the stocker reads 37-38 psi. Quite a difference!

I'll post up op temp numbers as I get them.

 

[TweeT91109]

I have a question, my machine shop hot-washed my block, (not hot-tanked) do I have to replace the oil squirter in the block? Cause I know they are two pieces, or should I just replace the bolts or the squirter's them selfs. Cause I don't want to start the motor, and them not work.

 

[toyotanos]

Old bump, but the only part you should replace is the bolt. It has a spring and check ball that can wear and cause excessive oil bypassing (through the squirters)
Clean out the actual sprayer nozzle and you're good to reassemble with new bolts

 

[IBoughtASupra]

You can just replace the bolts that have the springs. The squirters themselves can just be cleaned and blown out with compressed air. If you have a compressor, just get an air blower and soak them in degreaser and then blow air through them. You can get a small non colored paper clip(colored ones have a rubber coating that can come off) and run it through the hole to get out anything that might be stuck inside of them.

I doubt anything will be inside and the air blower will be enough to get it cleaned out.


Edit: Darn, Steve beat me to the post.

 

[toyotanos]

Finally got one :fistpump:

 

[TweeT91109]

You can just replace the bolts that have the springs. The squirters themselves can just be cleaned and blown out with compressed air. If you have a compressor, just get an air blower and soak them in degreaser and then blow air through them. You can get a small non colored paper clip(colored ones have a rubber coating that can come off) and run it through the hole to get out anything that might be stuck inside of them.

I doubt anything will be inside and the air blower will be enough to get it cleaned out.


Edit: Darn, Steve beat me to the post.

Ok just making sure, cause like I told you Iboughtasupra, I only replaced the bolts and springs.

 

[IBoughtASupra]

:: rave ::


That is the right thing to do. As long the squirters are cleaned and the springs with check ball is changed, you will be good to go.

 

[Nick M]

1. I'm due for an oil change so the GC 0/30 is going in. (pressure increase?)

Interesting about the GC. Maybe it is more like a 0-40 than a 0-30. Pressure doesn't go up when resistance goes down. Just like Ohm's law.