Rattling Cat!

[nikp]

Having got through to the point of removing my CAT in the process of replacing my clutch, i noticed a slight rattle coming from it. So, my theory is that is has started to break up inside - but it\'s not rattling much.

So, i thought i\'d ask you clever people what options i have.

Should I:

1. Put the existing CAT back on, and see how long it lasts?
2. Get a replacement CAT and fit that (Bearing in mind i eventually plan on secondary injectors, fuel pump and Apexi ECU and therefore could replace the cat with a CAT replacement pipe)
3. Purchase a CAT replacement pipe and just be careful at WOT until i get the injectors, fuel pump and ECU.

Money is a factor as the clutch was an unexpected, but necassary purchase. So I\'m thinking about just fitting the CAT back on and see how long it lasts - would there be any detrimental issues to me fitting a slightly broken CAT?

[jon haines]

if the cat breaks up it can block the outlet side of the exhaust causing probs.
not had much to do with rx7\'s but when mine went on an mx3 i removed it  and finished the job of with a bar to clear it out then reffited the empty shell.

[Rene7FD]

How long till your car is up for MOT?
Don\'t know whether you need a cat for MOT, but if it\'s some time before next MOT, I\'d do what jon said, empty it. It\'s a gonner already ayway.
Had the same on my MX-6, but left the last (tiny good bit in, as a cat is mandatory overhere in NL.

[nikp]

Wow. This thread is a bit old!

[McCARTHY]

i hope you don\'y still have that cat..... NO CAT, NO CAT, NO CAT  :burnout

[nikp]

Unfortunately i do. Cash is a problem. As is time. I need to fit my intercooler, which requires me to fit my battery in the boot. Once that is all done, i can consider removing the cat, so i can get her mapped. Gawd! Why is everything so complicated!?

Any volenteers to help relocated my battery to the boot at the weekend!?

[Rene7FD]

Wow. This thread is a bit old!

Oops, never noticed that, just assumed it was three\'ish hours old :2Rolleyes