neilg Posted May 7, 2005 Share Posted May 7, 2005 I have just been down to try get my decat pipe put on. However i was advised not to as the bolts had locked and were going to break. Is there a special way to do it. The bolts were heated up to the state of being red and still wouldnt come. I was told if they snapped they would have to remove the turbo to get to drill the studs out? Has anyone any advise for me as i wanted it swapping and thought this was going to be easy done Quote Link to comment Share on other sites More sharing options...
Chase Posted May 7, 2005 Share Posted May 7, 2005 From what I gather it can be quite involved if those nuts don't come loose. I'd definitely ask Chris Wilson's advice, or better still pay him to do it, as he's fitted loads AFAIK (If you're not near Chris, then I imagine one of the other traders with correct facilities on here could help) Quote Link to comment Share on other sites More sharing options...
JohnA Posted May 7, 2005 Share Posted May 7, 2005 Lots of soaking in WD40 might help. Bit of tapping with a hammer (along the stud) sometimes helps break it loose. I'm not sure I'd try the 'heating' bit if it were not on a proper lift, with adequate clearance all around. Even with good tools, be prepared to lose a stud or two. If so, you have to drill out the remains and retap the thread. Not the end of the world if you are already prepared with new studs in hand and a good 'tap and die' kit. I've got lots of tools, but still took it to a garage to have it done, not keen on using power tools lying on my back. Guess what? two studs broke off clean! Quote Link to comment Share on other sites More sharing options...
supradibbs Posted May 7, 2005 Share Posted May 7, 2005 i have been speaking to dude about this and he says it can be a complete mere to do, i think this will be one job i will not be doing myself Quote Link to comment Share on other sites More sharing options...
JohnA Posted May 7, 2005 Share Posted May 7, 2005 Aye, those bolts and threads have been baked in extreme temperatures for over 10 years, they won't be keen to part in a hurry... Quote Link to comment Share on other sites More sharing options...
neilg Posted May 7, 2005 Author Share Posted May 7, 2005 Right then, who is up around leeds and fancies doing it for me? Dont know why i assumed it would be easy Quote Link to comment Share on other sites More sharing options...
eyefi Posted May 7, 2005 Share Posted May 7, 2005 did they try to remove the stud? did they try any penetrating oil? soaking for ages usually works i've got a spare 2 into 1 section that could help if you do have some snap. Quote Link to comment Share on other sites More sharing options...
Suprasteve Posted May 7, 2005 Share Posted May 7, 2005 I have just been down to try get my decat pipe put on. However i was advised not to as the bolts had locked and were going to break. Is there a special way to do it. The bolts were heated up to the state of being red and still wouldnt come. I was told if they snapped they would have to remove the turbo to get to drill the studs out? Has anyone any advise for me as i wanted it swapping and thought this was going to be easy done Neil, I'm in the same boat as you, i sent a very similar thread but totally different replies:- http://www.mkivsupra.net/vbb/showthread.php?t=33638 I've taken it to 4 other mechanics since and they've all rubbed their chins for a while and said thats a job and half... Decided to save a bit of cash and take it to one of the professionals who are members here to get sorted. I know how you feel, thoroughly pissed off and a major let down - just cos of some poxy nuts ! Quote Link to comment Share on other sites More sharing options...
geoffvalenti Posted May 7, 2005 Share Posted May 7, 2005 Yeah, don't talk to me about it. I'm still trying to find someone to fit my front decat. So far everyone has taken one look at it and said "Ooh, those studs could break" I fcuking know that, that's why I'm trying to get someone with a ramp to do the work, rather than laying on my back struggling I may give up in the end and buy a 2nd decat pipe instead. Being that I'm intending to leave one cat on anyway, I don't think that it'll make a lot of odds. Quote Link to comment Share on other sites More sharing options...
Timwildman Posted May 7, 2005 Share Posted May 7, 2005 Yeah, don't talk to me about it. I'm still trying to find someone to fit my front decat. So far everyone has taken one look at it and said "Ooh, those studs could break" I fcuking know that, that's why I'm trying to get someone with a ramp to do the work, rather than laying on my back struggling I may give up in the end and buy a 2nd decat pipe instead. Being that I'm intending to leave one cat on anyway, I don't think that it'll make a lot of odds. Yours shouldn't be too bad, the garage didn't have a problem doing mine. seeing as our cars a slightly newer, the nuts maybe less of a problem. Quote Link to comment Share on other sites More sharing options...
Jake Posted May 7, 2005 Share Posted May 7, 2005 Removing the front cat from my '98 VVTi was not an easy job. One or two snapped studs, one stud that came out with the nut. It took a couple hours iirc. It's all good now though. If you're only removing one cat I would much prefer to remove the front one - from an EGT point of view. I got mine done at the local Kwik-fit. They're used to replacing manifold studs and have all the right equipment for the job. Quote Link to comment Share on other sites More sharing options...
Kev.O Posted May 7, 2005 Share Posted May 7, 2005 Guess I was lucky then. I took my car to my uncles garage, showed them what I wanted and left them to it. Came back several hours later and it was all done. The bloke who done it use to work for toyota so as soon as he looked at it, he knew it was going to be a nasty job but he done it and it never cost me a penny Quote Link to comment Share on other sites More sharing options...
hadyn Posted May 7, 2005 Share Posted May 7, 2005 get it to chris wilson sharpish - the only way Quote Link to comment Share on other sites More sharing options...
Kopite Posted May 7, 2005 Share Posted May 7, 2005 If you're in Leeds then Chris Wilson isn't that far away, could pop to ENVY too, they've done a lot of decats without problems. Not sure which one would be easier to get to though! Quote Link to comment Share on other sites More sharing options...
geoffvalenti Posted May 7, 2005 Share Posted May 7, 2005 If you're only removing one cat I would much prefer to remove the front one - from an EGT point of view. . Totally agree Jake, its just the matter of getting someone to do the job. Once they start umming and aarhing, I tend to lose confidence in them (not that anyone has been prepared to take the job on anyway) and would rather they didn't do the job in case they fcuked it right up I got mine done at the local Kwik-fit. They're used to replacing manifold studs and have all the right equipment for the job. My local Kwik-fit refused outright to even attempt the job, the other exhaust bay down the road at least put it on the ramp before they lost their bottle Worse thing was the studs didn't look rusty at all Quote Link to comment Share on other sites More sharing options...
hadyn Posted May 7, 2005 Share Posted May 7, 2005 thought kwik fitted outright refused to fit your own parts as well? Quote Link to comment Share on other sites More sharing options...
Jake Posted May 7, 2005 Share Posted May 7, 2005 Yeah, officially. They all love a cash job though. I gave the guy £40 for doing my decat. He was well chuffed. It went straight in his pocket of course. I don't have a problem with that, everone's happy. Quote Link to comment Share on other sites More sharing options...
Suprasteve Posted May 7, 2005 Share Posted May 7, 2005 anyone know of a mechanic in the Essex area that knows what they're doing re decatting and replacing dodgy bolts/nuts ? These guys sound like they know what they're doing but i bet they charge shite loads:- http://www.tdi-plc.com/toyota_supraMk4.html Also i bought a decat but been told it'll only fit UK spec, anyone know what the difference is ? Quote Link to comment Share on other sites More sharing options...
JohnA Posted May 7, 2005 Share Posted May 7, 2005 I went to Leon's place in Milton Keynes. Bit far away, but they sell the pipes as well, so they know how to fit them, with spare studs etc. Quote Link to comment Share on other sites More sharing options...
merckx Posted May 7, 2005 Share Posted May 7, 2005 No special way to do it, not very easy access though. Long extensions and universal joints on the socket wrench. They weren't very tight on my 97 car, after reading up on the subject on here a lot of the early cars had the studs shearing off. As long as your prepared for this happening. Like others have said take it to Chris Wilson , he's done this loads of times and has the replacement studs in stock. At least you'll get it done right! Quote Link to comment Share on other sites More sharing options...
Suprasteve Posted May 7, 2005 Share Posted May 7, 2005 ok cheers guys. what are the main differences between the UK and Jap decat pipes, are they just a different shape altogether or are the flanges different ? Quote Link to comment Share on other sites More sharing options...
hadyn Posted May 7, 2005 Share Posted May 7, 2005 different shape AFAIK Quote Link to comment Share on other sites More sharing options...
Suprasteve Posted May 7, 2005 Share Posted May 7, 2005 AFAIK Quote Link to comment Share on other sites More sharing options...
geoffvalenti Posted May 7, 2005 Share Posted May 7, 2005 As Far As I Know Quote Link to comment Share on other sites More sharing options...
Suprasteve Posted May 7, 2005 Share Posted May 7, 2005 Doh ! easy when you know how. there should be an "i'm with stupid thread" just for me explaining all the abbreviations! Quote Link to comment Share on other sites More sharing options...
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