Rb26 Oil Pump Problem

[dabizkit_69r]

hi i have a 33 with a rb26 with forged pistons, shotpeened rods, new T04Z and old skool Haltech E6k. I was driving it a couple months ago when i could hear a slight ticking which i thought was nothing major but after a good beating the slight ticking turned into a sound more like a jackhammer and when i accelerated the oil pressure would drop. Stupid me being so sick of having the car on tow truck i decided to keep on driving and try to make it home. After like 5klm the oil light came on and the car died. Just wondering what people think would have happened and how much damage could i have done? The cars been sitting now for nearly six months untouched due too lack of funds. If anyone would be willing to come help me take the head off and see what damage i've done, i'd be more than happy to shout them their drink and/or drug of choice as long as it takes. cheers Luke

[R31Nismoid]

Probably a stuffed bearing or two id imagine would be a likely scenario.

[GTR-32U]

i wonder if your oil pump just crapped itself....? Either way this aint gonna be cheap

[The Dan]

hi i have a 33 with a rb26 with forged pistons, shotpeened rods, new T04Z and old skool Haltech E6k. I was driving it a couple months ago when i could hear a slight ticking which i thought was nothing major but after a good beating the slight ticking turned into a sound more like a jackhammer and when i accelerated the oil pressure would drop. Stupid me being so sick of having the car on tow truck i decided to keep on driving and try to make it home. After like 5klm the oil light came on and the car died. Just wondering what people think would have happened and how much damage could i have done? The cars been sitting now for nearly six months untouched due too lack of funds. If anyone would be willing to come help me take the head off and see what damage i've done, i'd be more than happy to shout them their drink and/or drug of choice as long as it takes. cheers Luke

You should have stopped it when it started the ticking noise. You could have just done a crank polish and replaced bearings plus a few other small items. Now, because you drove it til it jackhammered, then drove it more and more, you have worn the bigend bearings completely out and the rod is probably running straight on the crank surface or the bearings may have fused to the crank. The main bearings would be stuffed too because of all the metal particles going through the oil. You have likely stuffed your turbo for the same reason. Stuffed oil pump for the same reason...camshafts could be worn now also.

If the engine stopped, that is not a good sign, especially because the oil light came on just before it.

I would say 8k would get it back in order again.

don't even bother taking the head off, you are wasting your time.

[Rowdyr32]

Mate the easiest way to get the head off is to pull the motor out and what you see won't tell you anything if you lost oil pressure.

Good luck it would take more than a few drinks for anybody to do it. Probably a whole days work.

[Shaun]

Same thing happened to me mate, and i did the same thing as you; kept driving.

My turbos were fcuked, head required extensive machining, had to get a new block and crank, etc, etc. Unfortunately for you, figure out how much it'll cost then double it.

Shaun.

[dabizkit_69r]

Thanks for the replies, I knew the bottom end would be stuffed and expected the head to have some damage. Is there any way to tell if the turbo is alright it was like brand knew and under warranty? Also if it is damaged do you reckon i could get away with returning it? Is there any workshops in brisbane that will pull the engine down and tell me whats up for a reasonable price? I've got like 10000 - 15000 for the rebuild once my xr8 sells.

[Swiper the Fox]

Thanks for the replies, I knew the bottom end would be stuffed and expected the head to have some damage. Is there any way to tell if the turbo is alright it was like brand knew and under warranty? Also if it is damaged do you reckon i could get away with returning it? Is there any workshops in brisbane that will pull the engine down and tell me whats up for a reasonable price? I've got like 10000 - 15000 for the rebuild once my xr8 sells.

I run a cutout system on our car that cuts ignition and fuel pumps once oil pressure drops below 20psi, it uses an override switch which is used to start the car (no oil pressure on startup). It has already saved 1 engine.

send it down to me...cost a couple of hundred in freight..ive got one coming arriving from up your way to build this week and freight cost wasnt as bad as first expected.

Edited June 29, 2008 by DiRTgarage