Separating Catalytic Converter Pipes from Exhaust Manifolds

[Deblo]

I have removed all the nuts and bolts from the flanges but cannot separate the cat pipes from the exhaust manifold. I have soaked them with wd40, pb blaster etc. obviously rust has set it. What next? Will heat do the trick? I hate to hit them with the torch as there is little room up in there. Any tips are appreciated.

[ltbrett]

I have an unfortunately intimate relationship with that job right now. The flange with the bolts you can remove has a crushable ring holding things together. I separated it using a small bolt with two nuts and washers. Pass the bolt through the hole in the flange, then a washer, nut, nut, washer. One nut and washer centers the bolt in the opposite flange. Screw the other nut up the bolt until it backs off the flange. Simple.

Brett

[Deblo]

Excellent Brett, thanks a lot

[Deblo]

Brett, can't tell you how much I appreciate your simple but genius tip. It worked like a charm. Thanks again.

[ltbrett]

Happy to help. I've been on 8 series message boards since I bought my car in 1999 and have been the beneficiary of many such tips and tricks.

Brett