Neil McCon

I just got done doing the head gaskets on my motor and after getting everything buckled up, i still have oil leaks. Its NOT coming from the heads, but its running down from somewhere above them? i first had the thought of camshaft seals because it has the look of the driver side front of the motor but i replaced those when i did the head gasket? Im clueless now and very frustrated after spending time fixing the head gaskets. From the looks of it, its mainly on the passenger side. Im also am getting no oil pressure like non at all, im not sure if its just my oil pressure sending unit or what? I forgot to hook up the sending unit for a while, but i wouldnt think that would cause anything? I need some help and ideas of whats cause this leak. Thanks, Neil.

Kiroshu

Well from the general area(s) you describe there are lots of places oil can leak.

If we are sticking the front/top of the engine:

-Valve Cover(s)
-Camshaft oil seal(s) (front/rear)
-Camshaft bearing end cap(s) --> (Lack of sealant on camshaft bearing end caps)
-Cylinder head gasket(s)
-Distributor O-ring seal

If engine does not make any unusual noises(knock/clack/tap) I would not suspect an internal issue for loss of oil pressure.

-Possible Oil Pressure Sending Unit failure...?
-Damaged wiring harness for OPS(Oil Pressure Sensor)...?
-Instrument Gauge Cluster Faulty...?

Neil McCon

I pulled both end bearing caps of on both sides of the motor and applied new sealant and re-torqued the bolts again but still oil leak. I also have a really bad tick coming from my injectors but i believe its front the fact 5 out of 6 injectors are missing the little pintle cap, so i have a injector rebuild kit on the way with new o-rings, filters, gromits, and seals. I also have had a dramatic loss in power but im assuming its from the failing injectors?

scope103

Did you follow the FSM for the installation of the valve cover gaskets? If not, that almost guarantees a leak.

The injector rebuild kits usually don't include the pintle cap; if yours does, could you share where you got it? In any event, missing the pintle cap won't make the injector "tick," nor should it cause a loss of power (at least not directly; I've been driving for several years with a few missing).

Last, to find an oil leak you have to get the engine clean enough to eat off of it. Use some spray engine degreaser and a garden hose.

Neil McCon

I bought the rebuild kit off eBay.... And what would be causing the injectors to tick?

Neil McCon

So i have replaced the oil pressure switch (40$) and that wasn't my solution to my LOW oil pressure. I did rebuild the injectors and fix my timing so i got my power back. I also pressure washed my whole motor (left it running) and cleaned all the oil off it... It took about a day to show sign of oil leakage again and its from the front of the motor i believe, more towards the passenger side. What could possible be leaking right there?

ToyoTech559

could be that you rolled the cam gear seal when installing.
also i think your suppose to put some silicone on certain parts of the head before putting the valve cover gasket/cover back on