Oil Pressure

tbauer03

tbauer03

TRBOBOX
OK brand new motor got it running last weekend and my stock oil pressure gauge was going crazy showing either a pegged pressure reading or nothing so i never ran it long. This weekend i got a mechanical gauge hooked up to the remote oil filter housing and there was only 4 lbs of pressure at idle and a bleep of the throttle increased pressure to about 10 pounds. All the while the stock gauge was pegged. never ran it long obivously and the engine as only been running for about a total of 2 minutes. What are your thoughts?
My only 2 thoughts are the oil pump is messed up or the distributor isn't fully engaged but i don't know how it could be getting some pressure with out the distributor
 
Falco

Falco

Donating Member
Ted,

What kinda oil? Did you put the engine together? If yes what kinda bearing clearences did you use?

Later,
 
9

93ty475

Donating Member
Falco said:
If yes what kinda bearing clearences did you use? later,
Click to expand...

that was my thought as well....did you guys plastigage?

some machine shops will blame the customer (for a problem) for not rechecking "their" work .... :roll:
 
9

93ty475

Donating Member
also try hooking the mechanical gauge up to the turbo feed line as i believe you will be bypassing one or two oil bypasses that are part of the remote filter setup....just to rule that out as well...
 
tbauer03

tbauer03

TRBOBOX
again i didn't assemble the motor the machine shop did but i appreciate all these thoughts, I can only work on the car during the weekends so i will see what i can do over the weekend.
 
Falco

Falco

Donating Member
Ok, inform us, when you have a chance. The oil you choosed is good, I used the same thikness, however you should see decent oil pressure with a thiner oil as well...

Later,
 
tytom

tytom

Donating Member
My guess would be bearing clearences as well. Its the only surefire way to mess up oil pressure. Or maybe oilpressure relief spring on the pump,but that's a longshot...
 
nightdiver

nightdiver

Active member
There is a plug under the rear main cap , deep like 2 inches in a hole. Falco had an unsolved oil pressure problem and when i told him to see that , the plug was missing.
The oiling system is very simple. All of the oil goes to the adapter where a relief valve is located. The main oil volume travels to the oil filter and then to the oil cooler. Its coming then to the main oil gallery that feeds the camshaft and crankshaft bearings
If you got just 4 psi of pressure it must be a big mistake in there cause these pumps send a lot of oil volume in the system. I think you will locate that easily
 
tbauer03

tbauer03

TRBOBOX
Yup found it.
Machine shop left an oil galley plug out. The big one up front behind the timing chain cover that feeds the camshaft and lifters. It didn't fall out or anything it just wasn't there. I will be talking to the machine shop tommorrow bc needless to say that is poor workmanship and could have resulted in major engine damage.
 
Falco

Falco

Donating Member
That's a good news. I'm glad you find it. Put it back and start to break in that engine...

On a side note. Tasos, you are mistaken me with someone else this time. :D But never mind...

Later,
 
tbauer03

tbauer03

TRBOBOX
yeah again it will have to wait for the weekend to put it together. :fist: K-State :fist:
But i got a 4 day weekend for fall break so i see no reason not to get the typhoon on the street, unless of course she finds something else to bitch about.(like usual) :lol:
 
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