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Topic: Cat removal (Read 626 times) |
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mike
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1996 Cosworth
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Cat removal
« on: May 20th, 2007, 10:37am » |
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I just got a pair of new cats on eBay from Germany so am in the process of dropping the old ones. Well, said process is taking a lot longer than expected! The LHS came out fine, but the RHS is putting up a fight. The three nuts have been removed, the flange dropped about a quarter of an inch but it will go no further. I am able to move it in all directions (except down!) so I am dumbfounded. I don't want to use too much force for fear of breaking one of the (thin) ears on the manifold. Any advice? I would prefer to leave the manifold in place as I have no source for new gaskets. Cheers, Mike
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Danny
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Re: Cat removal
« Reply #1 on: May 20th, 2007, 1:41pm » |
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Hi Mike, from experience of the RHS Cat I have had to remove the manifold, you can get to the bolts a little easier. Also, you can use heat to try a losen the bolt. HTH Cheers Dan
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ex 1996 24v Cosworth Now - Mondeo ST TDCI (Sat Nav Built-in/Bluetooth/Voice Control/Xenons/DeCat/Bluefin Remap @ 190bhp)
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cossie_al
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Re: Cat removal
« Reply #3 on: May 20th, 2007, 6:09pm » |
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When you say right hand side do you meen on the right when looking into the engine bay? If so there are four bolts on mine. This does not realy help with getting them off, but if you intend to use assembly paste on the manifold flange do so sparingly as if any of it finds its way into the cat it won't last long. Personaly I prefer not to use any engine side of the cats. If you get the gasket spot on central you should be okay.
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mike
Junior Member
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1996 Cosworth
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Re: Cat removal
« Reply #4 on: May 20th, 2007, 7:02pm » |
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It took a fair amount of not so gentle persuasion but that's it, cat is finally out! The cause of my difficulties was immediately obvious: these are original Ford with two studs attached. The top nuts had been an absolute p*ig to remove, I had to use tremendous force on a long breaker bar, stripping the threads but also bending the studs in the process, and that's what caused it to jam . I would have been better off if the studs had just sheared off. By the way the new cats are aftermarket but come with studs like the original. There is no way I am going to use the type of self locking (?) nuts that Ford originally installed though. I feel lucky I was able to remove them at all! Replacement will be regular nuts with lockwashers and copper grease on the threads. But that will be next week-end's task. Thanks to all for your advice! Cheers, Mike PS: RHS is starboard
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Dave2302
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Re: Cat removal
« Reply #5 on: May 21st, 2007, 4:00pm » |
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Quote:
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Dave "The 'ol Bear" ex Footer !
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