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martin74
14-08-2012, 07:04 PM
Hi all,
I realize this has been covered a lot in the forums. But my question is whether or not I can fix this at home without welding equipment etc.
So you all know what I'm talking about... the snarly rattle when accelerating from 2k revs.. sounds like crap
So apparently It's usually a loose divider in the Y joint, or the cat converter, or heat shields.
Heat shields I can deal with, the cat also is bolt on--bolt off, No problem.
So my question is has anyone fixed the Y joint problem themselves?
Can't afford an exhaust shop fix, but don't want to live with the noise either.
Cheers.

rush
14-08-2012, 07:09 PM
Hi all,
I realize this has been covered a lot in the forums. But my question is whether or not I can fix this at home without welding equipment etc.
So you all know what I'm talking about... the snarly rattle when accelerating from 2k revs.. sounds like crap
So apparently It's usually a loose divider in the Y joint, or the cat converter, or heat shields.
Heat shields I can deal with, the cat also is bolt on--bolt off, No problem.
So my question is has anyone fixed the Y joint problem themselves?
Can't afford an exhaust shop fix, but don't want to live with the noise either.
Cheers.

My piece broke off completely, emptied the cat and got it, but it left a hole on the y pipe where it tore it out. Went to my local exhaust shop. cost me $40 to get it welded and about 30 mins

HaydenVRX
14-08-2012, 07:10 PM
If you can fix it with a welder then an exhaust shop can do that too so in answer no, If the exhaust shop can't do it on a budget e.g. $20 to stick the welder on it you can't do it with a welder either.

martin74
14-08-2012, 07:20 PM
Ok, so I can't unbolt that piece right? Got under and heat shields covering everything so can't see..

alchemysa
14-08-2012, 08:20 PM
You need to unbolt the heat shields and remove the 'Y' piece. Then I used an angle grinder to cut a 'U' shape flap at the join of the 'Y'. Then I bent open the flap and pulled out the loose piece that rattles. I ditched that piece completely. I was able to tack weld the flap back in place then I tack welded another piece of flat metal over that. Then I took it to a professional welder and he welded it properly. (I cant remember if he even charged me). It was too thin for me to weld.

But the answer to your original question is basically no. To do it properly it has to be welded.

RobK
17-08-2012, 02:22 PM
I have to agree with previous post. I just had my TJ fitted with a brand new exhaust and the mechanic fabricated a new junction into the system for $150. The car's done 105,000km since new and exhaust pipe was paper thin and leaking in three places. It's now quiet and has a peck more grunt.

b1benno
17-08-2012, 04:57 PM
hi Rob, what was the total system worth? i have a rattle in the system when its cold; when warm its fine. wondering the cost for a fix and wouldnt mind the lukey as well :-)

SAVAGE ³
17-08-2012, 05:25 PM
You could be pinging?

alchemysa
17-08-2012, 07:10 PM
hi Rob, what was the total system worth? i have a rattle in the system when its cold; when warm its fine. wondering the cost for a fix and wouldnt mind the lukey as well :-)

The rattle you describe is exactly what I had. But unlike RobK my exhaust was still pretty solid after about 200,000 ks. Its now done over 300,000 and its still the same 'Y' piece but I have since replaced the back section that included the muffler.

erad
18-08-2012, 08:02 AM
Has anyone here ever considered the durability of current exhaust systems? They are really very good. My wife's TF has had most of the exhaust replaced over the years because small holes developed and I assumed that the whole system was stuffed and not worth trying to weld up, but in fact when I removed and cut up the original sections, they were in excellent condition. Only local areas were corroded through. My NL 2000 Pajero still has the original exhaust sysem intact (Shhh!) but this is probably because it only gets fired up and then run maybe once a fortnight, and it then gets at least a 100 km run, so it is very warm. Contract this to the Magna, it gets short runs downtown in very cold conditions and naturally gets lots of condensation in the exhaust. Lately it has been getting lots of 120 km runs to and from Canberra, so it too will tend to dry out as well, but the next time she starts it to go downtown, same thing - it is full of condensation again.