TaffyTim 6 Posted February 6, 2007 I was pulling into my drive after work and the engine was really hot as alot of stationary traffic on my drive home today. So much so the low pressure warning light was coming on when i was pulling away from stationary without any revs. As i pulled in there was a pop/bang sound from the engine. When i got out there was a pool of oil coming from the car an a nut was lying in the place where the car was when it went bang. Upon inspection this is what ive found, and im not happy. What does this mean? Im no mechanic so as much help needed as possible including how i fix it (or who i pay to fix it) and how much will this cost me. I take it i cant drive it to work tomorrow!!!! Share this post Link to post Share on other sites
inferno 1 Posted February 6, 2007 quality, not good when this happens... id fit a new box! but i dunno maybe the gearbox guys will advise on weather its repairable... Share this post Link to post Share on other sites
Rob_the_Sparky 9 Posted February 6, 2007 Tis the diff (final drive) gone bang. (if that is any help) Share this post Link to post Share on other sites
welshpug 1,627 Posted February 6, 2007 yup, thats a dead gearbox casing, or to be precise the diff casing. it wont get far without any oil in it. second hand gearboxes can be picked up relatively sheaply, and I've been quoted as little as £275 for a recondidioned unit exchange fitted. Share this post Link to post Share on other sites
fletch 0 Posted February 6, 2007 Yikes ripped a hole in the gearbox?! Youre gonna need a replacement unit. Share this post Link to post Share on other sites
TaffyTim 6 Posted February 6, 2007 yup, thats a dead gearbox casing, or to be precise the diff casing. it wont get far without any oil in it. second hand gearboxes can be picked up relatively sheaply, and I've been quoted as little as £275 for a recondidioned unit exchange fitted. There is a quaife atb diff inside there, will this be knackered? Share this post Link to post Share on other sites
Anthony 1,000 Posted February 6, 2007 As far as I know the usual reason for the casing doing that is because the pin comes out of the standard open-diff and smashes through the casing - I'd be a bit concerned as to why it's happened if you've got a Quaife, especially as that's not really a stressed part of the gearbox housing.... Miles will probably be able to say more. Share this post Link to post Share on other sites
TaffyTim 6 Posted February 6, 2007 As far as I know the usual reason for the casing doing that is because the pin comes out of the standard open-diff and smashes through the casing - I'd be a bit concerned as to why it's happened if you've got a Quaife, especially as that's not really a stressed part of the gearbox housing.... Miles will probably be able to say more. I spoke to miles 15 mins ago and he said the same about it usually happening to non quaife gearbox's. How much can i pick up a 2nd hand 1.6 be3 box for? Share this post Link to post Share on other sites
welshpug 1,627 Posted February 6, 2007 a nut was lying in the place where the car was when it went bang. you need the box off and dismantled to find where this came from. Share this post Link to post Share on other sites
TaffyTim 6 Posted February 6, 2007 The nut looks quite unique, or at least recognisable. On the face of it you can see a few chunks have been taken out , but there are markings left saying 10, 0, F (the other 3 are chipped and unreadable) The breaking of the nut has been done after 1 revolution of the thread so its not possible to see how long its supposed to be Share this post Link to post Share on other sites
nick 3 Posted February 6, 2007 Looks like a crown wheel bolt to me. Nick Share this post Link to post Share on other sites
j_turnell 134 3 Cars Posted February 6, 2007 Yeh looks like a crown wheel bolt to me, would it not be a case of swapping the diff and crown wheel and getting a 2nd hand diff housing... Share this post Link to post Share on other sites
TaffyTim 6 Posted February 6, 2007 Crown wheel bolt?? what does that bolt hold in place? why would it fail? Share this post Link to post Share on other sites
welshpug 1,627 Posted February 6, 2007 err, the crown wheel... fail? wrong torque, flaw in the machining or a weakness in the metal. Share this post Link to post Share on other sites
jonnie205 1 Posted February 6, 2007 Yep thats a crownwheel bolt, looks like a bolt has failed or the person who fitted diff didnt torque bolts up correctly. I would just remove casing and diff, fit a new set of crownwheel bolts and refit with new casing, prob about 1 hours work and box can stay in car. Whilst diff is out make sure that bolt has not daamged the mian casing Share this post Link to post Share on other sites
TaffyTim 6 Posted February 6, 2007 ok im liking the sound of this. Miles was going to be working on the car on the weekend so looks like he's got another job Doing a bit of research, looking at 'Removing the crownwheel' pic below it seems hard to think that just 1 or the bolts can fail is it likely that the other 7 have failed too? http://www.rallyparts.co.uk/cwp_change/ Share this post Link to post Share on other sites
Miles 331 1 Cars Posted February 6, 2007 As Jonnie's said it's the crownwheel bolt and I;ve never seen one do that before but a first time for everything, Hopefully it spat the complete bolt out as you don;t want it floating around the box itself Share this post Link to post Share on other sites
