Help - If Your Mechanically Minded :)

[KLowN]

ok so ive been told that my bottom end is gone.

heres the details:

a) the car is still exactly the same as when i bought it (driveability and power wise)

b) the oil pressure seems to start at 0 but as soon as i hit boost, it lifts up to 1.8 and stays there.

c) the oil pressure does not drop below 1.8 unless i turn the car off.

d) nothing else has changed

e) there is a knocking sound when between 2000 - 3000 revs.

f) when an oil pressure test was done by cypher, it read a constant 0

what do you guys think...

a) should i just drive it till it dies

b) is there nothing wrong with it besides the gauge

c) should i buy a new engine straight away

i have an exam tomoro morning so yeh kinda wana know tonite

thanks, steve

Edited June 13, 2006 by KLowN

[KLowN]

PLEASE HELP

[Zardos]

If i were you i would be speaking to a mechanic. If you bottom end is dead then either borrow a car or buy a shitter untill you get your motor rebuilt or a engine change over.. Thats was i would do...

I own two cars for this reason

[SECURITY]

save for a rebuild or a new motor.

if you keep driving it, it'll eventually eat away at your crank till you have to get a new one, then you'll have to get that one machined bla bla bla.

dont drive it around till it dies... because when it does you'll be left without a leg to stand on.

rb20's come cheap these days.. ive seen one for around $1500 for a long motor (get a short motor if you can). + labour and you'll have your car within a weeks time depending on your mechanic.

if you get the long motor, you could always try sell your rb20 head for a few hundred.

[KLowN]

mm ok thanks guys...

but its a bit sus that it hasnt loss power?

if the oil pressure is reading 0, whouldnt it not start, and if it does, wouldnt it be really noisy/shit performance wise?

[SECURITY]

it'd start like normal as you'd have around 15-25 psi oil pressure on start up (higher revs).

as for power... oil pressure wont stop your pistons rotating your crank.

[TurboX]

Had EXACTLY this problem - drove it around for 6 mths as it came and went and still made good power, BUT, it cost me as posts above say.

Big ends 3&5 (i think had burnt to a crisp -totaly stuffed and crank scoured also so RODS & CRANK needed to be replaced.

Worse it was a AWD ( GTS4) RB20DET so harder to find.

Blind_Elk came to the rescue with his orig RB20DET as he put a Stagea RB25 AWD in his GTS4.

Turbine, Glenn, pulled the crank and rods from his motor and fitted to mine as my block and pistons were much better and less rego hassels.

Will be putting the rebuilt motor back in this weekend with luck