Jump to content
SAU Community

Changing Pistons

ZILR-34

By ZILR-34,
in Engines & Forced Induction

 Share

Recommended Posts

ZILR-34 Experienced

ZILR-34

Posted
Posted

hi guys

I have a R32 gts-t and had the engine reco'd about 2months ago to standard spec. I made a big mistake not putting in forged pistons in. my question is which might sound abit dumb :P

is it possible to change the piston's with out taking off the head again and pulling out the motor? e.g., like put the car on a hoist and taking off the gearbox, oil pan and oil pump. And unblot the crank and pulling out the pistons.?

cheers

bill

Link to comment
https://www.sau.com.au/forums/topic/227563-changing-pistons/
Share on other sites
skylinekid Proficient

skylinekid

Posted
Posted (edited)

nah mate head has to come off. cant drop them out the bottom. generally u have to take motor out again put on a stand take head off take sump off and one by one unbolt bigends and slide pistons and conrods out the top. a fair ole job to wanna go and do now. basically strip it back to a bare motor pretty much. if u got bucket loads of money go nuts.

Edited by skylinekid
GTRsean Grand Master

GTRsean

Posted
Posted

No problems just cost time and money for labour, new gaskets, sealant etc, but you will need to hone the bores to suit the forged pistons to get piston to bore clearance right and bed in rings as far as I know.

260tech Proficient

260tech

Posted
Posted
hi guys

I have a R32 gts-t and had the engine reco'd about 2months ago to standard spec. I made a big mistake not putting in forged pistons in. my question is which might sound abit dumb :P

is it possible to change the piston's with out taking off the head again and pulling out the motor? e.g., like put the car on a hoist and taking off the gearbox, oil pan and oil pump. And unblot the crank and pulling out the pistons.?

cheers

bill

Hi there, apart from cast pistons, what kinda big mistake? Effective life of motor after big mistake? Like can yurun with a de-rated motor for the intended purpose for a while (like 40k's) or is the intended purpose gunna foobar it? If the latter is the case then pull motor out, strip it down & fit gear that will achieve yor purpose. Most cost effective option.

Cheers GW

ZILR-34 Experienced

ZILR-34

Posted
  • Author
Posted

my car is already pushing 232rwkw's and i dont think it will last to long. i know that u have to put the pistons through the top. but i cbf pulling everything out again. i dont see the difference would be if u go through the bottom?

cheers

bill

James_03 Mentor

James_03

Posted
Posted

Your probably better off sourcing another bottom end, then building that up in the mean time.

At least that way your not without the car for weeks on end while you take it all out. Could probably just sell your bottom end on them to re-coupe costs. If its making that power now and the tune is good there is no reason why it shouldn't last.

Cheers.

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

    • GTSBoy
      new 1.5 LSD issues/concerns

      By GTSBoy · Posted

      A 1.5 way is a 2 way. It is just a 2 way with a less aggressive ramp on overrun.
    • GTSBoy
      Boost cut after swap(RB25DET NEO) R34

      By GTSBoy · Posted

      The ABS and/or TCS being missing/broken will not cause the engine to misbehave. It just casues CEL to come on and annoy you. The CEL is useless if it is always on, so you have to do the things you have to do to get rid of it, so it can be useful. Being a Stag ECU, then yes, it will not expect TCS to be present. But it will expect ABS to be present and working. You will need to either make the ABS CU talk to the ECU (don't ask me what that will take on an NA R34), and make sure the hardware is working....or, you just need to blank it out in Nistune. Do not persist with the stock ECU. You will just have problems. Gte it Nistuned. Start from there. DO YOU HAVE A BOOST SENSOR? The ECU's boost sensor that it. It is connected to the loom at the rear of the coil cover. Usually rides on the firewall on an R34, but is usually bolted down to a bracket along with all the other crap at the back of the coil cover when a Neo is dropped into another car. If you do not have it, the ECU will shit the bed. So, do you have one?
    • Kapr
      Boost cut after swap(RB25DET NEO) R34

      By Kapr · Posted

      So sadly the fuel pump etc was not it. The pump and filter is new and it is still cutting around 4000 rpm. A read something about ABS/TCS (engine is from stagea and ECU too so no TCS) and i dont know for 100% that my car has ABS. It has ABS "cube" in engine bay but i dont think it works(or at least from my braking experience). Can be something like that?  I will be driving the car next week to Nistune tuner to properly see what is wrong...  
    • JC71
      new 1.5 LSD issues/concerns

      By JC71 · Posted

      the Tomei LSD fluid with lsd kit. frustrated that it was shaking the car to crap and affecting everything else negatively, I pulled the diff last night, and removed the lsd carrier, could not find anything wrong, however it seem to be 100 locked up acceleration, and deacceleration, wondering if they sent me a 2 way not a 1.5??  either way I installed the stock open carrier back in place. test drove everything smooth as butter again. no shake, shutter, random, what felt like clutch slip and grab or drive shaft play, etc. something differently wrong in side the lsd. I might bother taking it apart (if possible) to figure out what's going on inside this carrier, as bought too long ago to return.  only draw back is its back to a one wheel wonder.
    • TurboTapin
      Most women will agree that parking is the most taxing part of driving

      By TurboTapin · Posted

      What a time to be alive!!
×
×
  • Create New...