R34 Gtr Engine Noise

[T4NK]

hey guys this one is for all the peps that know about the RB26DETT, i just bought a R34 GTR a few weeks ago and last night noticed a noise that started when i was in lower gears under power, i was able to record it thismorning and have uploaded it. Some friends think it is lifters. The oil needs to be changed so i have bought some lifter addative and injector addative also, if anyone can ID the cause of this would help alot or even give me a place to start.

The car drives fine also, hits all gear shifts comes on boost, it is allso factor stock besides suspension and exhaust.

Cheers

http://www.youtube.com/watch?v=BiqNhzqfGEM&feature=youtu.be

[Hadouken]

Did you get a inspection prior to buying it?

Dont know what that is, but my 95 skyline doesnt do that :S

[T4NK]

Yeh i did, had nissan in tasie go over the car, they pulled off the turbos did a compression test, all came up good, the onlythings they found was diff pinion seal needed to be replaced and also weaping sump, oil pressure is fine and oil is full, it is rather black tho so this is y im gettihng it changed tomorrow and adding the lifter addative.

[PN-Mad]

I don't think your lifter additive will do anything. Reason being, and more knowledgeable people will correct me if I'm wrong, but lifter treatment is traditionally for motors with hydraulic lifters that suffer build up of contaminants. The RB26 having solid lifters cannot suffer the same problem. The lifters can need re-shimming if out of spec, the hydraulic ones are self clearenced.

Does it rise and lower with Revs, or road speed?

Could be a number of bad things unfortunately.... hope its something more simple

[DVS JEZ]

Bearer of bad news here, sounds more like a big end knock. Which means rebuild time. Stop driving it until the diagnosis can be confirmed. The less u drive it the more likely the crank will be useable

[T4NK]

Well if it is a rebuild im f**ked, this is my daily and i dont have the cash to rebuild it atm. sigh to the mechanics tomorrow.....

[T4NK]

the noise does not happen at idle only when im in 1st and 2nd then after 3k rpm in 3rd it goes.

[Hadouken]

Does it change with temp? Cold and at operating temp. Or just at warm?

[T4NK]

nar its there cold or warm

car did not over hear or drop oil pressue at all.

it sounds like its coming from near the injectors also

Edited July 22, 2012 by T4NK

[Hadouken]

Thats shit. Let us know what the mechanic says

Oh and might aswell invest in a pulsar for the time being

[T4NK]

if its done im going to have to sell it cheap and just by something for 10k and cut my losses i think, its my daily to and from work w/o a car i cant get to work.

[Hadouken]

if its done im going to have to sell it cheap and just by something for 10k and cut my losses i think, its my daily to and from work w/o a car i cant get to work.

That sux man, but now you know why they say, if you buy a gtr you better make sure you have enough money to buy another one (implying a engine rebuild)

[T4NK]

i would have thought if it was a big end or blown engine that the noise would have been there the whole time and not just when i accelerate in 1st and 2nd, and over 3k rpm in 3rd the noise is gone alltogeather.

yeh 3 months and i would have the cash to rebuild it but getting to work is a real pig without a car.

Edited July 22, 2012 by T4NK

[PN-Mad]

I remember writing this....

On your number one point, no its not hard. Just expect to reach deep into your pockets. If you can do work yourself, and do some research into it, Rather than just taking whatever is in a kit, then it works out much cheaper.

Remember, gtrs have their failings too. You might go get one, and spin a bearing in your first week. Hello 8k basic rebuild.

Cost for cost, once and engine rebuild is taken into account the V will not disgrace itself against a gtr in a straight line. It doesn't have the benefit of awd, but it is also more comfortable and easier to drive IMO. And you'll never end up with oil in the rockers in a vq!

[T4NK]

you know what i may be able to get a small shitter if my tax comes back in time

another video got into engine bay this time

http://www.youtube.com/watch?v=jDyo1NR28Qw&feature=youtu.be

[Hadouken]

sounds like big end. Its a sad day for any gtr owner.

[StevenCJR31]

wow that sounds rough, suggest you get it TOWED to a mechanic asap

[GTR-34A]

Terrible luck mate....

Don't sell it though, to move a car like that in the time frame you need to get another car, you'll be looking at getting 20-30k if your lucky I would think..

Maybe diagnosis it, if bad, buy a crapper then save for the rebuild...

Fingers crossed mate...

[SiR_RB]

big ends are gone, sounds exactly like my mates r32 gtr when his bearings were shot

[NISR32.5]

Hey mate sorry to hear about the car. This is my biggest fear, im currently looking for a 34 gtr and would be in the same boat as you if I bought one and this happened. I keep reading peoples posts about this happening so often with their GTRs and it kinda got me thinking of just buying a 32 gtr, that way i would have enough money for a rebuild.

If you dont mind me asking where did you get the car from and how much did you pay?? You can PM me if you dont want to post it here. Cheers.

Hopefully you get some good news from the mechanic but with my limited knowledge this sounds pretty serious.