Rb26 Major Problems

[ali-turko]

hey guys

im in very sad state of mind after waiting almost a year to get my car on the road iv got a major problem

ok here i go, i had an r33gtr which had a forged motor with a n1 pump, i put the motor into a r32 gtr

all way going well until a couple of hours ago, after my mate finished adding the final touchs to the pfc we took it for a drive got a bout 300m down the road, and the car stalled, tryed to roll start (kick the clutch while moving) all 4 wheels locked up.

at this stage i was very worried, it felt as if the motor seized mind you the motor is only bout 2800km old built by race pace...

so we pulled of the cam and cam gear covers of to see if anything broke,

but nothing but i did notice there wasnt allot of oil on the cams and underneath the cam covers was dry as a bone, so something to do with oil pressure,

i do have any aftermarket apexi oil pressure gauge that wasnt showings any sign of low oil pressure. and didnt here any knocking or breaking sound

the motor was running perfectly in the r33gtr which i use to own, now is a wreck coz it got hit but no where near the motor, i did get a breaker bar and crack the motor every few week to keep everything lubricated, only thing iv changed on the motor since it was in the 33 are hks dump pipes, bigger exhaust, changed plugs,oil and filter

oh and btw my mate is a mechanic and know what his doing when it come to rb26s and will try and get it stripped down tomorrow but i need to know if this has happen to anyone before im very worried and need to sleep at night

some please help thanks guys

mods to the motor are

Forged Pistons (Arias)

-Metal head gasket

-N1 Oil pump

-ACL bearings

-New crank

-Head Work (just general tidy up)

-New belts

-Engine Blue Printed

[BBGTR]

  ali-turko said:

hey guys

im in very sad state of mind after waiting almost a year to get my car on the road iv got a major problem

ok here i go, i had an r33gtr which had a forged motor with a n1 pump, i put the motor into a r32 gtr

all way going well until a couple of hours ago, after my mate finished adding the final touchs to the pfc we took it for a drive got a bout 300m down the road, and the car stalled, tryed to roll start (kick the clutch while moving) all 4 wheels locked up.

at this stage i was very worried, it felt as if the motor seized mind you the motor is only bout 2800km old built by race pace...

so we pulled of the cam and cam gear covers of to see if anything broke,

but nothing but i did notice there wasnt allot of oil on the cams and underneath the cam covers was dry as a bone, so something to do with oil pressure,

i do have any aftermarket apexi oil pressure gauge that wasnt showings any sign of low oil pressure. and didnt here any knocking or breaking sound

the motor was running perfectly in the r33gtr which i use to own, now is a wreck coz it got hit but no where near the motor, i did get a breaker bar and crack the motor every few week to keep everything lubricated, only thing iv changed on the motor since it was in the 33 are hks dump pipes, bigger exhaust, changed plugs,oil and filter

oh and btw my mate is a mechanic and know what his doing when it come to rb26s and will try and get it stripped down tomorrow but i need to know if this has happen to anyone before im very worried and need to sleep at night

some please help thanks guys

mods to the motor are

Forged Pistons (Arias)

-Metal head gasket

-N1 Oil pump

-ACL bearings

-New crank

-Head Work (just general tidy up)

-New belts

-Engine Blue Printed

Does it turn over on the starter with the plugs pulled?

Does your fuel pump prime on ignition?

You have spent a sizable chunk of cash on your motor, why not take it to someone who knows what they are doing before pulling the motor?

[ali-turko]

no the motor dosnt turn over at all, not even with a breaker bar, and my mate is a mechanic that knows what his doing, not his fault engine was running mint for bout 10mins then all of a sudden seized up and locked up all four wheels,

engine is getting pulled down today to find the problem

[blur]

Have you tried turning the motor over with the clutch pushed in, just to eliminate a faulty gearbox.

[ali-turko]

  Quote

Have you tried turning the motor over with the clutch pushed in, just to eliminate a faulty gearbox.

first thing we checked

[DECIM8]

All injector seals in? drain the oil?

I have no honest idea but I read the other day a person having the same problem with injectors which are not installed correctly and was flooding the engine?

Hydrollic lock i think its called

Edited May 24, 2008 by DECIM8

[GeeTR]

  ali-turko said:

no the motor dosnt turn over at all, not even with a breaker bar

I'm feeling for you man hey, best of luck

[ali-turko]

im over this car, i was so close to stripping it down and selling it as parts,

but my mate didnt have time to pull it apart today but will early next week, but looks like i will be folkong out for another build,

but the funny thing is we never hear nothing break, and also no metal shavings when we drained the oil

[blur]

Bugger. Best of luck with it, hope its nothing too serious.

[nizmonut]

it might seem like a dum question, but when you started for the first time did you take the oil cap off and make sure the cam lobe you can see from there had oil on it????

was the correct seal used on the N1 oil pump?

cause if a breaker bar wont turn it over you have either got A: a siezed motor B: a dropped valve or C: dropped a big end cap?

but from what you described above i wouldnt be surprised if the main bearings have spun and it the cradle pressure clamping the crankshaft.

good luck with that one bro, i feel for ya...

atleast when mine stopped going you new what was wrong with it cause number 3 piston was hanging outta the block.

[ali-turko]

before i started it i had the CAS unpluged and gave it a few cranks first to build oil pressure

[T04GTR]

for it to sieze solid and not make noises, it will of spun a main bearing. the cambelt will snap at the wieght of the whole car. if its just the head siezing, its a pretty damn strong belt!!

so no oil in the head.. all of a sudden. somethings blocked. does it have an oil cooler with remote filter?

[ali-turko]

the belt isnt snaped, i dont have an oil cooler or remote filter but i did notice there was thick gunk underneath the cam covers but not really any oil there, from what i can gather i think the oil pick up is blocked but wont no until we pull it apart,

if the main bearing is spun will it of damaged my crank? or will i just be able to replace the bearings?

anyway thx for this guys im pretty stressed out atm

[Duncan]

yeah a spun bearing will have hurt your crank. probably badly if its locked right up. sorry not likely to be good news from here

[PHATR32]

im assuming you pulled the plugs out and had a look inside?

[ali-turko]

from what we could see nothing look anything out of ordinary

[rb30dett]

I feel your pain mate been there myself, what caused it to sieze? how much damage?

[T04GTR]

well it would of been knocking badly if it was that starved of oil..... easy check is to pop the belt off and see if you can spin the motor.

[ali-turko]

the car had 6 liters of oil in it, it was just a shit house build,

anyway every bearing but 2 was spun and welded them selfs to the crank,

im over it now and looking foward to my new build to handle 800hp

[Brockas]

pics?