I had a 2TGEU twin cam celica about 23 years ago. The only difference
between the injected engines and the twin carb versions is the efi system.
They both have electronic ignitions and the efi system is fuel only so a
swap to carbs would be easy as there is no ignition challenge. I suspect
your engine has been swapped to carbs because back in the day efi was a
black art. The 2tg is like almost all toyota twin cams whereby they used a
more basic block and had a conversion head as such. So your block will have
a lot in common with the more basic engines.
I also had a 3tgte 1800cc twincam efi 8 spark plug turbo engine and that
had the opposite oik pressure problem whereby it burst oil filters. I ended
up changing the oil pump but the turbo had a bigger flow unit. As the issue
was with the pressure regulator - suspect it was scored and hanging up - I
made a hybrid pump using the new pressure regulator and the problem went
away.
If all the oil clearances are ok and you are using the correct grade oil
you may be ok - flow is more important than pressure (to an extent) with
shell/journey bearings.
Phil
On Tue, 6 Oct 2020, 08:38 robin romain, <robin.romain43@xxxxxxxxx> wrote:
Hello to all....I am Rob Romain and l own a Chevron seven .l enclose a
photo.
The problem I would like members advice on is my lack of oil pressure. It
does not reach 40 psi until about 4000 RPM. And very little on idle, even
when cold. The oil pump looks good, the gauge is confirmed as accurate, and
new oil and filter are installed. One workshop I took the car to put in new
big end shells , saying the old ones were poor. They said they could
Not obtain new main shells but said the old ones were serviceable. A plate
on the cylinder head says 2tgeu. This cannot be true since the EU stands
for fuel injection which it isn't.
The engine block is stamped with the number 2T 813 7415.... could this
mean that the block was originally from a 2t engine which was converted to
2tg? And that during the conversion something was left out which causes the
pressure to be lost.?
Any help would be wonderfully welcome. Rob
