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R33 Exhaust Removal

W1ngnut

By W1ngnut,
in Australian Capital Territory

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W1ngnut Proficient

W1ngnut

Posted
Posted (edited)

Hey ACT gang,

I've just ordered one of JustJaps turboback exhausts which should arrive in a couple of days.

I just have a question about the removal of the standard dump pipe etc.

- What is the general process for getting at the dump pipe? I assume you have to remove all the heatshields around the turbo.

- Is there anything I should becareful of in that area when removing the dump? I'll be reusing the o2 sensor, so i'll have that off already.

I realise that the JustJap exhaust might be a bit loud, but at the moment, my Kakimoto catback just doesn't cut it for me.

Edited by sfrizza
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https://www.sau.com.au/forums/topic/208854-r33-exhaust-removal/
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Baconer Grand Master

Baconer

Posted
Posted

haha, good luck with the exhaust sensor and the O2 sensor if they have never been removed. I had to pay a workshop to remove them they were so ridiculously tight.

I took everything from the cat back off in one go then the dump and front together. Heat shields off first from memory then the 6 bolts attached to the dump (2 from bottom, 3 from top and 1 from either side) Watch out though, they are very brittle, would recommend replacing them when you put on the new exhaust.

What kind of exhaust btw?

W1ngnut Proficient

W1ngnut

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Thanks for the info Baconer,

The exhaust currently on is a Kakimoto catback, the exhaust coming is a JustJap Hyperflow. I know its going to be loud (possibly overly loud), but this is easily changed by going to a classy oval muffler instead of a cannon. I need to get my burble, the Kakimoto is very quiet (nearly stock sounding).

So far i've removed the heat shield and have the dump soaking in WD40, which i'll also resoak tomorrow night.

Does any one know the thread depth, pitch and size of the bolts going into the turbo? I will try to pick some up but if i can't find any, i may run the risk...

GeeTR Grand Master

GeeTR

Posted
Posted

I got no fkin idea bout the details on a GTST, but multiple applications of WD40, or what eva penetrator your using is the first thing. As Alex said, the fact the gears been heat cycled so often can make it a bitch... *cough shuffle* nothing like a GTR's dumps though... :cool: I almost stabbed a house mate over that.. jk.. kinda.

sfrizza... are you ReACT sfrizza by any chance?

Always wondered... ain't sfrizza's those extra long roiling papers? :);)

W1ngnut Proficient

W1ngnut

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Posted

Yes, REACT sfrizza is me, one and same.... What's your username?

I could only imagine the dumps on a GTR... However, after taking a closer look at the dump, its near identical to the WRX dump on just on the opposite side and one more bolt. I'll keep applying the WD40 to soak into it thats for sure!

GeeTR Grand Master

GeeTR

Posted
Posted
forgot about the wd40, i used about 3/4 of a can of that stuff haha.

And it didnt help? It was that last 1/4 you shoulda used! :cool:

Yes, REACT sfrizza is me, one and same.... What's your username?

I could only imagine the dumps on a GTR... However, after taking a closer look at the dump, its near identical to the WRX dump on just on the opposite side and one more bolt. I'll keep applying the WD40 to soak into it thats for sure!

Oh, no real OzRotary fame, just a JSR / RICE RACING / 13B BP TT / Toms silver arrow groupie :);)

I thought maybe with teh name, you prefere the longer papers... canberra style hahaha

W1ngnut Proficient

W1ngnut

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Haha, no longer papers here..

Lol, well aren't you just the groupie now GeeTR! :cool: - Haven't seen RiceSP online in ages.............

Baconer, so far i've soaked the studs twice tonight about 1/4 to 1/2 a can of WD40... I'll do another two tomorrow night and see how we go. Hopefully the exhaust actually turns up tomorrow, I have no idea whether its been even shipped out yet... Bl**dy hope it has!!!

Baconer Grand Master

Baconer

Posted
Posted

haha should be enough, i soaked mine, waited 20 mins then another soaking, 1 hour later they came off fairly easily. Are you doing this on the ground or in a workshop?

Also once you get the cat-back sections off make sure you rev the car for shits and giggles :cheers:

W1ngnut Proficient

W1ngnut

Posted
  • Author
Posted
haha should be enough, i soaked mine, waited 20 mins then another soaking, 1 hour later they came off fairly easily. Are you doing this on the ground or in a workshop?

Also once you get the cat-back sections off make sure you rev the car for shits and giggles :)

Hhahaha well i smoked out all of Monaro Hwy this morning because of the WD40 soaking on the turbo exhaust housing / dump flange.... OOPS!

If you only left yours for an hour, hopefully I should be right then. Here's praying I don't snap any bolts..

As for doing it on the ground or in a workshop... I wish i had the luxury, i've already done 10 subaru liberty gearboxes on the ground, no point in stopping just for an exhaust..

Oh and if i get the catback section off first and its still not too late, bloody oath I'll give it a quick squirt...

W1ngnut Proficient

W1ngnut

Posted
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Posted

Well I got her all done Thursday night. Its an extremely well built exhaust, the quality of the welds is very very good.

As for the sound... it sounds awesome! I have my RB burble back (it was bad having my N/A R31 sounding louder than my R33)...

All the bolts came off with ease. Putting the dump back on could have been better, the 2 middle bolts on the 6 bolt turbo flange didn't want to tighten all the way up (potentially). I had to much fear of snapping them so i didn't push my luck. Having said that, it isn't leaking at all :laugh:

Overall, very happy :down:

race_snooze Grand Master

race_snooze

Posted
Posted

I have done this numerous times its a fiddly job but not to hard, soak all nuts and bolts in penetrate so as not to snap any while getting them off. You will find that some of the turbo nuts are more then likely loose any ways.

W1ngnut Proficient

W1ngnut

Posted
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I was worried that the dump was going to be the hardest to remove, but it turns out that the mid section to back section was the hardest to do... Trying to get the exhaust in the hangers correctly at the same time as doing up the 4 bolt flange on the JJR pipe was just plain annoying... Needed a second set of hands to hold it all steady! But got there in the end.

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