I've finaly got around to swapping my stock exhaust for the Fujitsubo Giken one I had lying around. I knew the stock one was on its way out, but only now have I realised the extent of it. One side had rusted all the way through so that the backbox wasnt even joined to anything.. :|

 

Anyway I'm fitting downpipes in the process, and am having a bit of trouble getting to the two bolts on the top of the stock turbo elbows.. any advice on how to get at these would be appreciated. I could imagine that on an auto it is easier as you could reach down from the top of the engine bay, but on the manual the clutch cylinder is in the way...

 

Secondly the new exhaust system is decat, and so there is nowhere to fit the cat sensor (temp sensor I think). I've done some searches on here and read that they are not necessary, but would like to be 100% sure before removing them.

Ditch the cat overheat sensor. Not needed and most are faulty/broken.

Cheers for the quick reply. I shall get on with it tomorrow, and hopefuly find a way to access the bolts on the stock elbow...

Anybody know about the top bolts???

Are you removing the front pipes from the elbows I assume?

 

I used two socket extensions doubled up, a bit of time and patience and they were undone.

 

I fitted the same system as you from my breaker and it sounds amazing. :thumbup:

I am trying to remove the elbows. Its the top two bolts on the elbows that I'm having trouble getting to.

 

Good to hear that it will be worth the effort :D

cant you leave the elbows on and remove it from the front pipes?

I've managed to take the exhaust off from where the elbows end, but the exhaust I am putting on has decat pipes which dont line up with the stock elbows. I have the downpipes that join the decats properly, its just a matter of getting the stock elbow off and replacing it with the downpipes...

Ditch the cat overheat sensor. Not needed and most are faulty/broken.

 

- This isn't intended as a thread hi-jack.. But the Cat-Overhead sensor reminded me of something...One time when I went to the petrol station after doing a long journey, I filled my car up.. and paid, then went to start the car back up.. and the light on the dash for the cat overheat sensor came on.. and it wouldn't allow the car to start until it cooled down...

 

It's never happened since, but 'ditching' it couldn't cause any un-desirable problems?.. such as not starting when it decides or anything could it? lol..

 

Oh and btw - I have FGK exhausts too! - Good choice :D

its a very tight squeeze mate, you can just get to them from the top i think if you have a ratchet spanner. if you are still stuck when i come over ill give you a hand. if it make a difference the bottom two are studs with nuts and the top two are bolts. have you tried a universal joint on a long socket extension.

 

hope it helps a bit

- This isn't intended as a thread hi-jack.. But the Cat-Overhead sensor reminded me of something...One time when I went to the petrol station after doing a long journey, I filled my car up.. and paid, then went to start the car back up.. and the light on the dash for the cat overheat sensor came on.. and it wouldn't allow the car to start until it cooled down...

 

It's never happened since, but 'ditching' it couldn't cause any un-desirable problems?.. such as not starting when it decides or anything could it? lol..

 

Oh and btw - I have FGK exhausts too! - Good choice :D

 

The cat overheat sensors are in NO WAY connected to the ECU. It must have been another fault that caused the sensors to illuminate on the dash....as that's all they are. You may have flooded the cylinders or something preventing it from starting which in turn sent neat fuel down through the exhaust. But it would not have been because the sensors alone were illuminated, but would be the fault that caused them to pick up excess heat in the cats anyway.

 

Actually sounds like you may have the start of a PTU failure. I dunno, but you're getting neat fuel into the cat....and if it needed to 'cool down', then it could be the start of the PTU breaking down.

Edited January 26, 201015 yr by FunkySi

Another update.... One bolt snapped, elbow still in place :( This is getting from bad to worse...

This is a job i want to do but without the car in the air its a nightmare. Simple to do but can be a git too.

get youself a can of plus gas and give it a soak overnight, usually helps no end

The cat overheat sensors are in NO WAY connected to the ECU. It must have been another fault that caused the sensors to illuminate on the dash....as that's all they are. You may have flooded the cylinders or something preventing it from starting which in turn sent neat fuel down through the exhaust. But it would not have been because the sensors alone were illuminated, but would be the fault that caused them to pick up excess heat in the cats anyway.

 

Actually sounds like you may have the start of a PTU failure. I dunno, but you're getting neat fuel into the cat....and if it needed to 'cool down', then it could be the start of the PTU breaking down.

 

Like I said, this happened ages ago, and roughly about the time it went to Zedworld and Jeff tweaked with it and gave it a clean bill of health again et.al. no more problems:) - I just never thought about it in great detail.. lol

I appreciate the reply though Si... Sorry for thread hi-jack again! :)

Edited January 26, 201015 yr by 300ZX_DRE