Dunsfold Dave Posted March 29, 2014 Share Posted March 29, 2014 Lamba sensor is really tight and I dont want to force it using mole grips (although I gave it a little go). I dont have a spanner large enough for the sensor. Its on a R500D and it looks like a 22mm. Before I pop out and buy the wrong spanner can anyone advise on what size it is? DD Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted March 29, 2014 Member Share Posted March 29, 2014 Lots are 22mm. Can you see a serial number? Have you tried PlusGas, freezer spray and tightening it a bit first? Jonathan Edited by - Jonathan Kay on 29 Mar 2014 18:54:25 Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted March 29, 2014 Share Posted March 29, 2014 Big adjustable spanner ? Don't use mole grips Link to comment Share on other sites More sharing options...
John Vine Posted March 29, 2014 Share Posted March 29, 2014 The one on my R400D is 22mm, so I imagine yours will be the same. I use a big adjustable. Agree with JK's PlusGas tip. JV Link to comment Share on other sites More sharing options...
Domus Posted March 29, 2014 Share Posted March 29, 2014 Try tightening just a thou, then back and forth a little at a time. Sometimes works. Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted March 29, 2014 Share Posted March 29, 2014 Leverage is your friend ...... longer spanner makes it easy. Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted March 29, 2014 Share Posted March 29, 2014 You could also heat the socket quickly to get that to expand. Link to comment Share on other sites More sharing options...
Bradders Posted March 31, 2014 Share Posted March 31, 2014 If I were you I'd get a garage to do it. They have a special lamba wrench and a tool for cleaning the thread afterward to get the new sensor in. After severely strained forearms, its not something ill be doing again in a hurry. Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted March 31, 2014 Share Posted March 31, 2014 Never had that much of a problem with them myself ? Mole grips wrong ...... long spanner and a bit of heatfmakes it easier. Edited by - SM25T on 31 Mar 2014 12:35:55 Link to comment Share on other sites More sharing options...
Dunsfold Dave Posted April 1, 2014 Author Share Posted April 1, 2014 Thanks for the replies. Got a 22mm spanner and that got it off ok. DD Link to comment Share on other sites More sharing options...
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