Hi,

I am planning to replace the heavily rusted sump on my ST170. This seems like a common issue reading the posts on here.

The bolts on the cat also look badly corroded - will probably need cutting / drilling out.

The question I had - are these bolts "captive" / part of the downpipe / cat, or can I replace these? The cat looks in good shape, so reluctant to replace the whole thing.

Can I get away with just dropping the cat from the downpipe, or do I need to actually remove it?

Thanks in advance for your help.

Steve

 

The sump bolts are not captive and even i they were its no problem to cut off the nut or drill out the thread and fit a normal nut and bolt. When i took the cat off mine it sheared off the bolts and replaced with new. A new CAT from ford will set you back Ł600+ a cheap cat replacment will lose you power, keep the standard one if you can as they are very efficient

 

Thanks very much for the info!

Do you think I need to completely remove the cat, or just lower it from the exhaust downpipe end?

Cheers,
Steve

 

....Also the bolts are so rusted I can't quite see what size they are - guessing around M14x35mm?

Any ideas?