Jump to content
SAU Community

Rb26 Rebuild Progress

IOWNU

By IOWNU,
in Engines & Forced Induction

 Share

Recommended Posts

IOWNU Grand Master

IOWNU

Posted
Posted

Hey guys,

Well recently I posted some info about my turbos dying, followed by the engine. Engine was opened up recently, and I took some pics on my Mob, exhaust valves are smashed, hence the 0 compression. Judging from the damage, the mechanic reckons its just the head that is gone, and the bottom MAY or MAY NOT be functional. He's getting the head reconditioned and may choose to "gamble" and put the head back onto the same bottom......for some reason that doesn't sound entirely correct to me. Anyways, this is for the tech gurus on SAU, judging from the pics, is it likely that the bottom end is gone? Or should the head just be replaced on its own. Prior to engine failure there was NO TAPPING bottom end sound, engine just seized, and refused to start.

Thanx in advance,

Ali.

PICS:

13-09-05_1306.jpg

13-09-05_1307.jpg

13-09-05_1308.jpg

13-09-05_1347.jpg

Link to comment
https://www.sau.com.au/forums/topic/87766-rb26-rebuild-progress/
Share on other sites
GTRsean Grand Master

GTRsean

Posted
Posted

If that happened to me, I would also tear down the whole engine and rebuild it. The main thing is that nothing else could fail if it is rebuilt properly and new parts installed. I'd go a fresh eng any day, I'd have to save up first though.

IOWNU Grand Master

IOWNU

Posted
  • Author
Posted
Don't 'see how it goes' make a point of it that the whole motor needs to be rebuilt :D

haha that's what i meant, see how it goes with the mechanic.

I assumed from the start that I might need a full rebuild, but mechanic is a mate and is honeslty trying to save money........as much as I appreciate it, i think i'd rather not risk it.

Guest DIRTgarage

Guest DIRTgarage

Posted
Posted
haha that's what i meant, see how it goes with the mechanic.

I assumed from the start that I might need a full rebuild, but mechanic is a mate and is honeslty trying to save money........as much as I appreciate it, i think i'd rather not risk it.

he is not being a mate by allowing the engine to be put back together without a full rebuild....it will cost you more in the long run.

Mik Experienced

Mik

Posted
Posted
Absolutely DO NOT go with the "she'll be right" attitude

The heads off, get that bottom end out and have it rebuilt otherwise you are wasting your time and wasting your money.

Dont half do it

Pulling the head off with the engine in the car must have been fun...

Duncan Grand Master

Duncan

Posted
Posted

at the very least get someone to do an analysis on your oil, they will be able to tell you if there are metal particles like bearings or exhaust valve parts floating around your engine.

this is a topic close to my heart atm :)

pnblight Mentor

pnblight

Posted
Posted

rebuild it no question

plus i find it easier now to drop the subframe engine gearbox the lot to do any work on the engine but it requires a two post hoist (but god does it make life easier)Once out its so easy to remove/work on everything

IOWNU Grand Master

IOWNU

Posted
  • Author
Posted
It will be worth it.

What components are you going to use in the rebuild?

Hmmm was thinking standard, but now that the budget has already been blown, might as well blow it further.

The car already has n1 nismo turbos, steel wheeled, but not ball bearing.

Car also has aftermarket exhaust and air filters, but thats it.

Might upgrade the internals, see what the mechanic says tommorow, any suggestions?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Wazmond
      Stock rb25det neo questions

      By Wazmond · Posted

      Hows your intake piping? Are you still running stock? Having in the stock AFM position would mean, if the BOV was shut/venting out, it'd create the almost stalling kind of effect right // "the rich pulse behaviour" due to MAF thinking air is flowing ? But this would be better than having the bov in the stock position + MAF on/just before cross over piping right?
    • GTSBoy
      Stock rb25det neo questions

      By GTSBoy · Posted

      Essentially, yes. Although I wouldn't put the AFM on the crossover pipe. I'd want to put it into what amounts to the correct size tube, which is more easily done in the intercooler pipework. I bought a mount tube for card stile AFM that replaces the stock AFM - although being a cheap AliExpress knockoff, it had not flange and I had to make and weld my own. But it is the same length and diameter as the stock RB AFM, goes on my airbox, etc etc. I don't have a sick enough rig to warrant anything different, and the swap will take 5 minutes (when I finally get around to it and the injectors & the dyno tune).
    • Wazmond
      Stock rb25det neo questions

      By Wazmond · Posted

      So to summarise, the best thing to do is to move recirc to between turbo and IC, and maf on the crossover pipe. Meaning I'd need a recirc flange, drill a hole in the piping on turbo outlet area. And drill hole on crossover to fit/weld maf sensor? Either that or put the MAF on the turbo inlet right?  Is an aftermarket recirc/blowoff valve recommended? Do currently have family in Japan so could probably bring something back with maybe a cheeky lil SuperAutobacs run?
    • tsuokun
      Lets play a game - What is causing my oil consumption?

      By tsuokun · Posted

      Yep, so far most have said that it looks like corrosion on the wall from piston not moving. Which then has probably damaged the oil rings and caused those vertical marks. The longest the engine was still after the rebuild, was the winter of 2018 - 2019, plus the boat trip to Japan. When I shipped the car, it had normal gas in the tank but before that winter pause, it had E85 in tank.  In any case, even if either one of those was the cause, it happened close to 6 years ago and the car has been driven something like 30 000kms after the fact. Again, apart from the plugs and the dip stick, there is nothing in the way the car runs that would indicate what has been going on in the engine. I am going to consult a shop and ask their opinion, what would be the best approach. I do have some access to a garage I could use to diagnose further myself, but time is very restrictive. Might end up buying another engine that could be used while this one is being remedied. Without pulling the head, it will be impossible to find out if it needs another bore, but here's to hoping a hone would suffice.  Goddamnit, I would really have preferred this not happening.  
    • 25RBGT
      Got this r31 silhouette flood car to rebuild.

      By 25RBGT · Posted

      Boot is going to be replaced eventually. I just wire brushed what I could and rust converted. Then painted in rust kill primer. the spoiler also got repainted and plugs replaced on the ends. The under side of the bonnet is going to be black also, currently white. But red on the top side, same colour code as the silo to begin.
×
×
  • Create New...