mr v6 Posted October 4, 2016 Share Posted October 4, 2016 All I want to do is a simple oil change. It seems these 10mm bolts in those silly clips are halting me. Just tonight I've loosened a few, but one decided to spin & break the housing it was in. This us now stopping keeping the front lip up, good job I have cable ties. Not only do I want to do the oil change, at the same time I want to replace both of the drive belts. Am I missing an obvious trick anywhere? Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted October 4, 2016 Share Posted October 4, 2016 Common issue, just replace with new. Quote Link to comment Share on other sites More sharing options...
Wizza2000 Posted October 4, 2016 Share Posted October 4, 2016 (edited) No they are a nightmare, mine same as you was held up with cable ties especially where they meet inner wheel linings Gave up and bought a new sheet metal undertray from Adrian @ Torqen best thing I ever done, perfect fit and come with all new fittings You will get hacked off with the old one lol it done my head in, all my bolts nearly sheared when I removed It totally to replace with the new one Good luck and try plenty of WD40 and wait a while Edited October 4, 2016 by Wizza2000 1 Quote Link to comment Share on other sites More sharing options...
Adrian@TORQEN Posted October 4, 2016 Share Posted October 4, 2016 https://www.torqen.uk/nissan/350z/body-styling/exterior/1663-350z-torqen-undertrays-trq-ut350.html As above, it comes will all hardware and you have easy access to your oil filter, no need to remove the whole tray Quote Link to comment Share on other sites More sharing options...
mr v6 Posted October 5, 2016 Author Share Posted October 5, 2016 I knew this was coming . Why do you people goad me into buying more bling for my Z? :lol: My problem is, when I try to undo them with a socket I can feel the resistance, so back it off in the hope it loosens up. Next, it breaks the tab it's sat in on the bumper, that leaves it with nothing for it to bolt to. So I have an undertray that would normally bolt to the holes on the front bumper, but those are now split due to rust. On another note, I still have the factory front lip. Quote Link to comment Share on other sites More sharing options...
Zeezeebaba Posted October 5, 2016 Share Posted October 5, 2016 I had issues with these stupid bolts and tabs when taking off the bumper.After dremmel time I replaced them with plastic pop clips. Quote Link to comment Share on other sites More sharing options...
modo Posted October 5, 2016 Share Posted October 5, 2016 Same here new undertray, clips,screws. Repare wheel arch liners, they had split where the retainers attatch. Bent some thin stainless sheets. 1 Quote Link to comment Share on other sites More sharing options...
350_Jer Posted October 7, 2016 Share Posted October 7, 2016 How have people re-done the undertray fixing when the captive nuts have sheared off in the subframe? I've got a Torqen undertray, have the front part fitted but not got round to getting the main section on yet. Quote Link to comment Share on other sites More sharing options...
evest Posted October 7, 2016 Share Posted October 7, 2016 I did this repair to my bumper where the tab were knackered: http://www.350z-uk.com/topic/107117-diy-bumperundertray-repair/ But where the subframe captive nuts have sheared off, I've used tie-wraps for now Quote Link to comment Share on other sites More sharing options...
samsniss350z Posted October 8, 2016 Share Posted October 8, 2016 Whenever I've removed my undertray I've always sprayed the bolts with plenty of Q45 (similar to WD40, but better) the night before removal and then used copper grease on the threads when refitting. Seems to prevent heads shearing off and excessive rusty threads, Quote Link to comment Share on other sites More sharing options...
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