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Advice/Help on Removing Dump Pipes R33 GTR

R33.GT-R

By R33.GT-R,
in Engines & Forced Induction

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R33.GT-R Apprentice

R33.GT-R

Posted
Posted

Hi Guys, I'm trying to remove the standard dump pipes to install new ones.  I'm stuck at removing the hard water lines and the manifold heat shield. I've attached photos and highlighted what I'm talking about. There are some bolts that are just impossible to get to or maybe it's just because I'm limited to tools.  Any tips would be appreciated - thanks. 

20180201_171707.thumb.jpg.8fe5f14755cdcd0abfce3db19911e14b.jpg

20180201_171657.thumb.jpg.606ad9e8e2ffc9e52ac2665dfc416ebc.jpg 

GTSBoy Grand Master

GTSBoy

Posted
Posted (edited)

You need bent/offset open ended spanners to access the lower ends of these.  Ideally they would be tube/flare spanners rather than open ended, because they are less likely to do damage.  Flare spanners are like a ring spanner with the end cut out.  The cut out is wide enough to pass over the tube and the remaining part of the ring wraps around the hex on the tube nut to still touch all 6 sides, instead of just 2 sides like an open spanner.

The same tools will of course be good for the top tube nuts.

SPO3909402-zoom.jpg

(or what he ^ said) SPO1061526-zoom.jpg

Edited by GTSBoy
R33.GT-R Apprentice

R33.GT-R

Posted
  • Author
Posted

Back. Got the water return pipes off, but then I realised that was just the beginning of my problems. Rear turbo manifold has a bolt at the back that is to tight to get to.  Taking a lot longer to install than I thought.  How's everyone's experience with installing dump pipes?

20180207_201322.thumb.jpg.e046ba2d5557ea0f0b4c337fa2b8425c.jpg

Spoiler

 

 

Dobz Experienced

Dobz

Posted
Posted

Once all the oil and water lines are off you need to get crafty with a ring spanner to undo the manifolds, then pull turbo and manifold out together. 

I can't remember exactly but i think you need to loosen off the flange bolts on the rear turbo so you can weasel the manifold off the studs on the head.

If you find it hard going getting them off you should at least get them rebuilt before you put them back in. 

r32-25t Grand Master

r32-25t

Posted
Posted

I can pull twins off and put them back on in a day but I’d never pull turbos just to replace dumps 

as said you need to unbolt the turbo from the manifold, push the turbo down then unbolt the manifold from the head, pull the manifold out then the turbo 

R33.GT-R Apprentice

R33.GT-R

Posted
  • Author
Posted

So after a long morning of hard labor turns out that the exhaust doesn't even fit the car... :sad:

So annoyed, was looking forward to it so much.

Below is the connection between the front turbo dump pipe and the front pipe.

5a7e9cfb4c5ca_exhaustjoint.thumb.jpg.ebed5f33ad0be1b5a3dfb7f51a299873.jpg

Next picture is the position of the front turbo if the dump pipe and front pipe flanges were to be connected.  It's hard to tell from the picture, but the turbo is sitting a lot lower than the standard position and you can see it's angled.

5a7e9d89ed99e_frontturbopositionwithdumppipe.thumb.jpg.0059a0d8fd486e5bb15537001796a53c.jpg

At this stage, I'll probably leave the car in pieces and try to figure something out. 

Mick_o Grand Master

Mick_o

Posted
Posted

Sorry to hear about the big head f**k dude! But as said above. Ditch the snails mate. Put 1 nice 1 on there and completely change how the car drives from Idle to redline ?

Leave it in pieces till you can afford a manifold and the right size snail to suit your application. 

Again as some of the boys have stated and as you've experienced for yourself its A NIGHTMARE so when going to all that effort go for a power/ increased driveability upgrade while you're losing patience, the skin off your knuckles and hours of your life on those nasty ass twins! Swap to 1! Never look back and never deal with your current situation AGAIN! ?

R33.GT-R Apprentice

R33.GT-R

Posted
  • Author
Posted
16 hours ago, Count Grantleyish said:

Looks genuine China to me.

Unfortunately, it's genuine Australia.

@Mick_o - Thanks. Oh tell me about it, getting those turbos off was so frustrating. Like @r32-25t said:

On 09/02/2018 at 10:26 AM, r32-25t said:

I’d never pull turbos just to replace dumps 

I wouldn't do that again for just dumps.

After a brief research session on converting to a single, the bank account wouldn't allow for it. Although I'm actually very interested in a single setup now after reading all the benefits you get compared to twins.

My thinking is to leave the car in pieces and source another set of dumps and fronts. But then that money could also contribute to a single setup :6_smile:

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