Oxygen sensor removal

Blink · 10th July 2020, 13:35

What's the best way of getting the two oxygen sensors off the cat?

The multiplugs are fairly tricky to get to and I can't see how they release from the connectors.

The threaded ends on the cat look fairly cooked in and I don't want to put too much force on them in case the metal starts to bend.

Advice please.

https://rimmerbros.com/Item--i-MHK100728

NB. I need the cat off so I can drop the front subframe.

TIA

Blink · 10th July 2020, 15:38

Solved using a 22mm open ended. And there's just enough length of cable to allow them to be unscrewed without busting a wire.

suzublu · 10th July 2020, 17:07

I use one of these

https://www.ebay.co.uk/itm/SEALEY-TO...gAAOSwCk9bUG6x

Blink · 10th July 2020, 18:38

I nearly bought one of those earlier but couldn't be bothered to wait for delivery. The open ended did it relatively easily. Shame I didn't spot the 3rd sensor though - had to bolt the cat back just to undo the darned thing.

10th July 2020, 13:35	#1
Blink Posted a thing or two Rover 75 Saloon Join Date: Apr 2019 Location: Under the car Posts: 1,840 Thanks: 210 Thanked 244 Times in 221 Posts	Oxygen sensor removal What's the best way of getting the two oxygen sensors off the cat? The multiplugs are fairly tricky to get to and I can't see how they release from the connectors. The threaded ends on the cat look fairly cooked in and I don't want to put too much force on them in case the metal starts to bend. Advice please. https://rimmerbros.com/Item--i-MHK100728 NB. I need the cat off so I can drop the front subframe. TIA

10th July 2020, 15:38	#2
Blink Posted a thing or two Rover 75 Saloon Join Date: Apr 2019 Location: Under the car Posts: 1,840 Thanks: 210 Thanked 244 Times in 221 Posts	Solved using a 22mm open ended. And there's just enough length of cable to allow them to be unscrewed without busting a wire.

10th July 2020, 17:07	#3
suzublu This is my second home rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009 Location: Seaton Carew Posts: 26,912 Thanks: 65 Thanked 7,142 Times in 4,642 Posts	I use one of these https://www.ebay.co.uk/itm/SEALEY-TO...gAAOSwCk9bUG6x

10th July 2020, 18:38	#4
Blink Posted a thing or two Rover 75 Saloon Join Date: Apr 2019 Location: Under the car Posts: 1,840 Thanks: 210 Thanked 244 Times in 221 Posts	I nearly bought one of those earlier but couldn't be bothered to wait for delivery. The open ended did it relatively easily. Shame I didn't spot the 3rd sensor though - had to bolt the cat back just to undo the darned thing.