Oil Pressure issues
Posted: Wed Sep 05, 2018 1:49 pm
Description of set up:
I have a terrible memory but I feel I have owned my bus for about 6 years. Maybe a tad longer.
I have rebuilt the motor. Took me about 6 months because I had no idea what I was doing.
Heads are from Adrian in Southern California.
Balancing issue and resurfacing I had done locally on certain parts.
The bus came with so I rebuilt it with an external oil cooler. Never knowing how to remove it.
I have battled Fuel lines, vacuum leaks, and AFM issues.
This year I felt the bus was running pretty good.
Colin and I were lucky to focus on more nagging stresses like putting on a new slider door.
One issue that presented it self however this year was oil pressure.
We guessed maybe it was as simple as changing the oil and using the Napa gold filter instead of the Bosch filter.
I did this and took a long road trip and still the oil pressure issue is present.
So what it the issue.
When cold Oil Pressure shows 55 to 45
When warm oil pressure is 41-35
When warm and I shut off the bus and then restart oil presssure is 00 and the read light of death comes on for a few seconds.
I rev the motor and it starts building up again and red light of death disappears.
Bus runs great.
There seems to be a power issue in second gear or up hill.
I am using Valvoline 10/40 GTX
Head temp never got higher than 380 up hill in 90 degree weather.
Stayed pretty steady at 350.
Maybe this is the external oil cooler at work, I have no idea.
The only time I have ever hit 400-420 was when I had a vacuum leak.
Any thoughts on why the oil pressure take a minute to build when warm?
I should also say that it takes a minute to loose pressure too. It stays pretty steady after I shut the car off.
Thank you in advance...
Want to catch this if its something I need to address.
My uncle was saying maybe replacing the sending unit?
I have a terrible memory but I feel I have owned my bus for about 6 years. Maybe a tad longer.
I have rebuilt the motor. Took me about 6 months because I had no idea what I was doing.
Heads are from Adrian in Southern California.
Balancing issue and resurfacing I had done locally on certain parts.
The bus came with so I rebuilt it with an external oil cooler. Never knowing how to remove it.
I have battled Fuel lines, vacuum leaks, and AFM issues.
This year I felt the bus was running pretty good.
Colin and I were lucky to focus on more nagging stresses like putting on a new slider door.
One issue that presented it self however this year was oil pressure.
We guessed maybe it was as simple as changing the oil and using the Napa gold filter instead of the Bosch filter.
I did this and took a long road trip and still the oil pressure issue is present.
So what it the issue.
When cold Oil Pressure shows 55 to 45
When warm oil pressure is 41-35
When warm and I shut off the bus and then restart oil presssure is 00 and the read light of death comes on for a few seconds.
I rev the motor and it starts building up again and red light of death disappears.
Bus runs great.
There seems to be a power issue in second gear or up hill.
I am using Valvoline 10/40 GTX
Head temp never got higher than 380 up hill in 90 degree weather.
Stayed pretty steady at 350.
Maybe this is the external oil cooler at work, I have no idea.
The only time I have ever hit 400-420 was when I had a vacuum leak.
Any thoughts on why the oil pressure take a minute to build when warm?
I should also say that it takes a minute to loose pressure too. It stays pretty steady after I shut the car off.
Thank you in advance...
Want to catch this if its something I need to address.
My uncle was saying maybe replacing the sending unit?