Help! Oil Pressure Gauge Issue

[kalel]

Hey Guys!

This may be a slightly long story, but please read because it may provide some clues.

I was on a cruise and basically I cornered too fast (Stupid I know) and lost control and spun out. I wasn't trying to be a smart arse, just trying to get somewhere in a hurry. I was extrememly lucky in more ways than one. I backed over one of those aluminium white reflector things that are on the side of country roads when I stopped spinning (only did 270deg). I feel like an absolute tool and an idiot for going too fast. I tore loose an Earth wire which in turn blew an ignition fuse. This lead to no dash instrumentation and no power windows and best of all stopped my alternator from charging my battery. Once the fuse was replaced, everything was working again. I have checked underneath the car and can't find any damage from the reflector post other than the obvious wire that was torn loose. This leads me to today.................

When I was going to a mates place I noticed that the oil pressure gauge was getting really high when I was pulling high revs. even around 4g on the rev tacho, it was reaching the line between 4 ang 8 on the gauge. It was almost hitting 8 when I was pulling over 5.5-6 g on the revs. I don't think that this is normal, but I can't verify it as I don't know anyone who has a skyline presently. I can't see any oil leaks and the oil level looks good.

I have a S2 R33 which is stock except for a pod filter.

If anyone has any ideas, please let me know. I will probably have to take in to a mechanic (anyone know anyone around the woodville area?) maybe morepowa or some place like that but at least I will have a possible clue as to what I am looking at.

cheers

[Cubes]

The stock gauges and senders are notoriously inaccurate and can read either extremely low (most common) or in some cases extremely high. Mine does both from time to time.

Get either a cheap mechanical pressure gauge on it to test or shove a decent elec gauge (~$100-150).

Oil pressure too high or too low can indicate engine problems so get it checked out.

[kalel]

The stock gauges and senders are notoriously inaccurate and can read either extremely low (most common) or in some cases extremely high. Mine does both from time to time.

Get either a cheap mechanical pressure gauge on it to test or shove a decent elec gauge (~$100-150).

Oil pressure too high or too low can indicate engine problems so get it checked out.

I think from memory that mine stayed relatively constant.

I did notice however it is more exaggerated when the car is cold as opposed to when it gets up to temperature.

any more thoughts?

will be getting it checked out a.s.a.p. though. can't afford a new engine.

thanks

Edited December 26, 2007 by kalel

[Cubes]

It was almost hitting 8 when I was pulling over 5.5-6 g on the revs.

If the motor was cold and your pulling high rev's expect to loose a bottom end in the future.

As a general rule don't give the car a hiding until ~10mins after the water temp has reached normal operating temp as the oil is still cold and thick. Thick oil = less oil flow.

If you loose a bottom end there's a reason for it; either you have given it shiet when its cold, there's been detonation or oil starvation at some point.

[kalel]

I don't normally give it any shit, but when I do I wait for it to reach normal operating temp.

Not sure what you mean by detonation sorry, I'm a newbie in auto stuff.

[RBRolla]

im gonna agree with the first reply. that it is probably the sender i was getting all kinds of crazy readings on GTR so i put in an aftermarket mechanical one and i have never has the problem since.

[kalel]

Is the installation of a mechanical gauge easy or something that I would have to take to a mechanic to do?

[=premo=]

Fair easy, hardest part is feeding wires through firewall. So not dificult at all and if you have a din free its even better

[Simon-S14]

stock gauges suck balls... mine would read fine then all of a sudden shoot past the 8, ,did this with both my rb20 and the 25 and they were two different senders.

just put a electric gauge in, reads perfect now

[kalel]

Thanks guys, I was getting kinda worried about what my gauge was reading. I will still have my car checked out to make sure for peace of mind, but these words have certainly put my mind at ease a little.

[wildr33gtst]

make sure you do i was in the same situation than you with my freshly rebuilt motor, everyone kept telling me its the gauge or sender and i didnt bother checking it out, and then my oil pressure light came on and now my engine is out again, so i would suggest putting a mechanical gauge to it asap, and if it is running low oild pressure it might be time to replace it before it does some serious damage. Well worth it for piece of mind. cheers