hi all, im going to attempt to fit a 3'' down to 2.5'' downpipe today on my 1994 wrx 0n my drive ive got everything ready gaskets & heat wrap, can anyone give me any pointers on doing it please? so far got car on axle stands as high as i can, ive removed the turbo heat sheild, unplugged the cat on fire & undone a couple of the turbo nuts god these where tight even after a good soak in wd are these some kind of lock nut do they need replacing once off?, is it now just the bracket which holds the turbo heat sheild to remove to get to the 2 underneeth turbo nuts? thanks in advance

 

Yeah turbo bolts are a swine todo first time in a while, i always reuse them and have had no problems with a blowing exhaust. You should have a bracket holding the DP onto the side of the gearbox and obviously 2 bolts holding the end of the DP onto the centre pipe.

It took a fair bit of wiggling to get mine off but got there in the end.

I would take the top mount of if i were you, give you more light if anything but will give you better access to the turbo/box bolts.

hope this help

 

cheer for the quick reply & help mate, how did you get to the 2 underneath turbo nuts these look a right nightmare to get to? just wondering if these would be more accesible when the cars not jacked up

 

dislocate your wrists!

i think i did them from underneath 1/8th of a turn at a time! IMO they, along with the engine/box bolt underneath, are the worst ones on the car.

a 14mm ring spanner is probably the best tool for the job unless you have flexi sockets etc

 

having a right job down to the last 2 nuts on the turbo looks like its had a replacement turbo at some point & who evers put it on has knackered the nuts there all rounded off

 

2 bolts on heatshield undone from underneath even with the lower strut brace in the way. Use a small socket and small ratchet.

As huds said earlier remember to take the bolt that secures DP to gearbox out. The bracket on the DP will get stuck once you remove the bolt and will need wiggling out.

 

This is not going to be fun, trust me! my last scoob had the same prob and bottom 2 were rounded. EVentually i ended up using my impact with untold extensions and knuckles to get under the turbo and spin the nuts off. It took me a whole saturday to do 2 nuts and i was f'ing and blinding. Glad the brother was there to help though as its not easy locating the socket onto the nut.

Good Luck mate. oh and lots more WD

 

I had this problem on mine when i put my decat on , some one before me had rounded every nut on the turbo , had to use a hacksaw blade and saw the nuts off, lol

 

your not wrong mate its turning out to be a right nightmare everythings off brackets the lot apart from these 2 blasted nuts on the bottom of the turbo we've tried every tool in the box the correct 14mm ring spanner socket just not sit right cause its rounded & cant get no room to try & tap a 13 on, ended up having to hack saw one of the top nuts off took us all morning, but dont want to have to do this on the bottom with being the studs, but hey its a lovey day

 

lol just what you need to be doing - sweating your **** off under a car all day

maybe it WOULD be a good idea to change all the nuts/bolts!

 

Hopfully you have it sorted by now But if not then this tread may help

https://www.scoobynet.com/general-te...ull-decat.html

 

i definitely will do if i ever manage to get the old ones off

 

Ahhhh now that thread brings back some memories of dodgy nuts with old sockets. hehe

 

ive managed to break a hose now this isnt going well , on the end of the let hand fuel rail theres 2 hoses attached one being the fuel is the other one a vacum this was so brittle & snapped but i cant see were the feed comes from?

 

Hmm you got any pics?

As the only pipes i can think of which go past that rail are actually the power steering hoses.

They start as metal from the pump and then become rubber hoses as they pass the injector on Cylinder 4, this is where the fuel pressure regulator is.

 

Oh any other plastic hose, is no big deal and plus if it was brittle then it's probably a good job it did break. But when you get the chance fire us a picture up and we will let you know what it is.

 

i heard catted pipes were the way forward now lol

 

ooh just a thought - maybe removing the front wheel and drive shaft would help you out?

 

Lol they're at MOT time.

So OP do not damage your Cat Downpipe as it may come in handy.

 

Pre '95 WRX, cat will not be required for MOT

 

all nuts off now with help from a hammer chisel grinder hack saw & various sockets job & half ill not be doing another one of these again in a hurry new downpipe wrapped & ready to go, thanks again for all your help guys

 

cant wait to do mine

 

good to hear

 

pictures of the pipe i broke any ideas?

 

yeah its part of the fuel rail, fairly cheap stuff to buy.

i had to replace some of these pipe on my astra diesel as they became brittle as were letting air into the fuel system.

It might be worth replacing all the fuel line pipes if this one has become brittle enough to snap rather that bend.

 

ive got quite abit of the silicone hose lying about that bore, its just tracking down where the pipe goes to, last thing i want to do really is take the inlet off

 

right day 2 of fun, managed to get the new downpipe on yesterday but found it not a amazing fit onto the turbo very tight, tried to put it on as central as we could anyone else found this when fitting one its a japspeed? im hoping when i put the nuts in tighten them up evenly it will pull it in not the best i know but only thing i can do, also any idea where i can get some nuts & bolts from for the top 2 on the turbo then some bolts for the studs on a sunday? anymore ideas on the pipe i broke what it is & if i can join it some how for a tempory messure as i need my car back on the road tomorrow for work? cheers

 

the actual hose is about 5 inches long so get some woman hands and you should be able to get it popped on. I can take a pic as i have a manifold off at the moment.

where abouts are you as im sure I have some turbo bolts.

 

that would be spot on it you could pop us a picture up so i can see where everything routes im in nottingham mate abit of a way from you but thanks for the thought, i might give b&q a try only place i can think of today that are open today

 

yeah i'll go out in a min for you.

if you cant get a long term fix from b&q then get something to bodge it and i'll post them to you.