Jump to content
SAU Community

Recommended Posts

It's been 6 months now since I decided to endevour the difficult task if r&r of the shit rb26 stock turbos.

Delay after delay from wrong banjo bolts to dropping bolts down my turbo. Wanting to do everything right so I won't take it out again anytime soon!

Anyways I have finally completed the task!

Cars been sitting for 6 months without starting and I would like some opinions before I give her a crank

Long story short should I change oil with mineral to flush then drop again for synthetic or just leave oil and put new synthetic oil in after its at OT

I have changed the coolant so it's fresh

I will be taking out the spark plugs and dropping a bit of oil down the piston tops to help guard against removing surface rust

Changing spark plugs while I'm at it

Checked all hoses and lines.

Now finally the oil is Dam filthy. Wouldn't feel happy with it running through my engine so a change is a must.

But the head/cam lobes is pretty much dry from sitting around

So I was thinking of dropping the oil cold and finding a cheap synthetic oil to flush out the system of any possible stupid previous owner debris before the first start!

And then draining the cheap oil and filter for proper synthetic oil? This way the head gets more lubed up and the old oil gets flushed out easily? And hopefully it primes my new lines? :)

My problem: is it alright to use mineral oil to flush out the old gunk (for < 100km ) cause synthetic oil seems a bit of a waste to use as a complete flush, or am I better off just biting the bullet and let the cam lobes grind on the lifters for a few seconds and change the oil and filter normally after that?

Wanna reduce metal on metal as much as possible :D

Edited by AnDreeZy

Why not take off the rockers and oil up the cams?

ive managed to strip 1 bolt on the intake cam cover because of the stupid screwdriver head bolt.

mustved been locked in by the gasket glue or something.... wouldnt even budge with an impact driver >.<

rest of them came out fine

change oil.

disconnect ignition module.

crank until oil pressure(should be able to get some).

start.

If it doesnt build oil pressure, will need running speed to get it.

mine was a complete fresh rebuild.

sitting for 12 months.

this is what I done.

ive managed to strip 1 bolt on the intake cam cover because of the stupid screwdriver head bolt.

mustved been locked in by the gasket glue or something.... wouldnt even budge with an impact driver >.<

rest of them came out fine

you dropped the old oil cold and dropped new oil in straight away?

i just opned up my coilpacks and found oil, i was shitting myself until i touched it and it turned outto be brand new oil in some dirt haha

guess previous owner wasnt steady with his hands when putting oil down the cylinder LOL

Anyways back on topic!

Cranked like 2 times thn my battery died :(

Also found out I wa running bkr7es

Is there and advantage to this spark plug compared to bcpr7es?

Also my attessa kept making a sort of rubber runnin on glass burbling sound when the battery was low and the torque gauge would twitch to 1 and attessa would turn off ? And start up again after 5 secods? Is this normal? Accumulator f**ked ? D:

the plugs are standard, not platinum.

just means you cant leave them 100k.

the attessa is probably having fits with the low battery voltage.

charge it up, and try again.

i think both bkr7e and bcpr7e are both copper/standard plugs which need general maintainence?

is there comparisons between them?

Battery is on a charge tonight, will try again tomorrow :)

And anyone ever flush their 26 out with mineral oil and then changedback to synthetic oil before?

aparently mineral wont go through small cracks like synthetic does?

I'm fair sure it's just some acronym used by NGK about the spark head. Platinum plugs have a different code like IX at the end and cost more than $4 a plug haha

Anyways would it be safe to run the normal cheap (mineral) oil to try flush out any debris for a few Kms then drop it and pour in some full synthetic?

Or will this damage my engine more than clean it?

I'm fair sure it's just some acronym used by NGK about the spark head. Platinum plugs have a different code like IX at the end and cost more than $4 a plug haha

Anyways would it be safe to run the normal cheap (mineral) oil to try flush out any debris for a few Kms then drop it and pour in some full synthetic?

Or will this damage my engine more than clean it?

get a low weight mineral oil and a filter I like to use Valvoline Engine armour, only need to run it for about 5 minutes, ONCE YOU HAVE PRIMED THE TURBOS - don't start the car without doing this (as described, remove the coilpack harness) and crank for about 20 seconds let the starter cool for 15 - 20 seconds then crank for 20 seconds again (I cycled like this for about 3 minutes to ensure the turbos HAD oil) then drain and replace with synthetic . don't forget to bleed your cooling system once running, otherwise you will get issues with overheating due to air pockets. I just run copper plugs in mine and they are fine. if you are really an@l, or the oil is really bad after the 1st drain do the mineral flush twice.

get a low weight mineral oil and a filter I like to use Valvoline Engine armour, only need to run it for about 5 minutes, ONCE YOU HAVE PRIMED THE TURBOS - don't start the car without doing this (as described, remove the coilpack harness) and crank for about 20 seconds let the starter cool for 15 - 20 seconds then crank for 20 seconds again (I cycled like this for about 3 minutes to ensure the turbos HAD oil) then drain and replace with synthetic . don't forget to bleed your cooling system once running, otherwise you will get issues with overheating due to air pockets. I just run copper plugs in mine and they are fine. if you are really an@l, or the oil is really bad after the 1st drain do the mineral flush twice.

Haha alright ill jsut get some 10-30 or whatever autobarn has on sale for cheap.

will let the old oil drain cold for an hour or so then add the new oil :)

and then prime the shiet outa the turbos :D

coolant is all good :) will do a heater on bleed once im running the car with the mineral oil :)

Thanks for the advice :D

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


  • Similar Content

  • Latest Posts

    • Hi from Canada, Both of my calipers are starting to fail. My car is a 2005 M35 Stagea ARX and I can't seem to find any parts or any cross reference caliper that would fit my car. Is there a company or a similar caliper that would fit and I could replace the OEM one. Or if anyone knows where I can find a new OEM. Any help is very appreciated. Let me know!
    • Maf is a question mark but TPS  I have set at 0.47, the fact that I’m getting proper voltage range out of it with the key on leads me to believe it’s functioning properly. I’m getting proper voltages on basically everything. I still need to look up voltage ranges for z32 maf and test that 
    • Honestly no not at all, but it’s a very basic tune, it’s stock injectors q45 tps and z32 maf. Other than that it’s a completely stock base map. The file is from nistune and from my understanding if it was tune related I would be able to unplug maf and tps and it would still start even if it was a really shitty start. I have tried starting it with coolant temp, maf, and tps unplugged none of those 3 togethor or individually changes anything 
    • 🏆 Skyline Supremacy Meets Mount Panorama Magic 🏆 Join SAU NSW as we take the long way to Bathurst, the home of GTR greatness. Saturday 30th August 2025 7:00AM Meeting Hanna Park North Richmond 7:30AM Departure Cruise Via Bells of Line Road 9:00AM Arrival to Stop 1: Golden Poplars Meadow Flat 9:45AM Arrival to Final Destination: Mount Panorama Motor Racing Circuit Meet Location: Hanna Park North Richmond Stop 1: Golden Poplars Meadow Flat Final Destination: Mount Panorama Motor Racing Circuit   *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • What does it look like with highway driving? And yes, I had a similar thought as Duncan. It looks quite similar in my Stagea and I have made myself accept it as normal. Might have to look into it some day   Highway gets as low as 10l/100km on my end so I'm not as worried about it being a mechanical issue. More likely just the tune on the haltech.
×
×
  • Create New...