reading low oil pressure

[kethy69]

hi just wondering if can one can help me? iv just re-built me skyline r33 gts as i melted a couple of pistons. i bought a second hand bottom end and changed everything over. the car fired up first time, but the stanard oil gauge hasnt gone above 1/4 mark which is 2, if u rev it or take it for drive it rises very slightly but wont go above 2!just sitting right at bottom.the car dives fine and sound perfect any ideas what this could be or is sumthing major wrong?

[Bubble]

I would suspect a faulty sender unit.

[chipper]

Originally Posted by Bubble

I would suspect a faulty sender unit.

Yep i would agree

[Jez-R32 GTR]

I agree aswell but i wouldn't chance it. Can you swap the senders over or fit a different (aftermarket) gauge to it just to check? Does it have an oilcooler fitted?

[kethy69]

no havent got oil cooler kit mainly stanard, havent got a spare sender to change over!how much are they roughly?and are they easy to fit!havent taken car far and havent reved it up as dnt want anything to go wrong!

[Ahapartridge]

What bearings did you use in the bottom end?

[Lambo Door Kits Ltd.]

Also is your oil pump providing enough pressure?

[Checkpoint]

I wouldn't drive it.
The oil pumps can wear and fail, the relief valves can also stick due to contaminants - sometimes from the worn pump or a rebuild that has not been kept clean.

Like has been said, substitute the sender or get the oil pressure checked with a pressure test kit. If it has been running low it will be worth popping the bearing caps off for a look, as they will be the first to suffer

[Jez-R32 GTR]

All you need is a cheap halfords gauge just to check it. I may be wrong but i think the oil pressure sender for the standard gauge is separate to the oil pressure switch for the warning light. This means that if the light goes out when you start the engine then it is probably the sender, they are crap.

[kethy69]

i got back in it today and when i started it up the gague went to half way this time, yeaterday it didnt move attal, and then droped back to 2 and as i drove it it was goin up but i havent booted car yet as just rebuilt it. so is that normal or is it still reading funny???

[Jez-R32 GTR]

That sounds like a bad connection to me. I'd keep an eye on it still though.

[CoLd StOrAgE]

Hi everyone great to be here! I just bought my first skyline 95 r33 gts-t last weekend and its everything i expected and more. Im a fresh fish and i just wanted to ask a few questions as i have just joined this website today. My oil pressure has been at a constant reading of 4bar but today after a trip down the motorway and on to the A roads i noticed it had dropped to 2bar. I have read the other posts and im feeling better all the time but how can i be sure my sensor is ok and where could i buy a aftermarket one? Pls be kind my first post on any website. Thanks everyone keep up the good work ;0)


ps oh yeah how do you start a new post?

[dazgib]

should be at 2 when idling warm and rising steadiliy to 4 under acceleration

[Andy W]

Originally Posted by kethy69

hi just wondering if can one can help me? iv just re-built me skyline r33 gts as i melted a couple of pistons. i bought a second hand bottom end and changed everything over. the car fired up first time, but the stanard oil gauge hasnt gone above 1/4 mark which is 2, if u rev it or take it for drive it rises very slightly but wont go above 2!just sitting right at bottom.the car dives fine and sound perfect any ideas what this could be or is sumthing major wrong?

A guy local to me bought this car, who ever put it back together shouldn't be aloud under a bonnet !! oh or near a toolbox one of the rear wheels fell on his drive home !

was strange seeing it again as it used to be Boyo's car