Vista Posted May 5, 2017 Report Share Posted May 5, 2017 That'll be why the Diff (Duff?) is graunching and groaning then! Link to comment Share on other sites More sharing options...
Mexican Gerbil Posted May 5, 2017 Report Share Posted May 5, 2017 Lucky you have a complete set of spares on the other car Link to comment Share on other sites More sharing options...
Vista Posted May 5, 2017 Author Report Share Posted May 5, 2017 The van has an Atlas Axle with a 3.22:1 CWP. With 350bhp and 245/40/15 tyres it'd kill an English axle in no time. Link to comment Share on other sites More sharing options...
colr6 Posted May 5, 2017 Report Share Posted May 5, 2017 Something else that's getting rare, a decent oe 3/54 c/w/p Link to comment Share on other sites More sharing options...
Vista Posted May 5, 2017 Author Report Share Posted May 5, 2017 You can buy new ones, non OE obviously. Anyone know how good they are? Link to comment Share on other sites More sharing options...
oggy69 Posted May 5, 2017 Report Share Posted May 5, 2017 I've had a Burton power one in mine for over a year now....running st170 engine and had no probs 1 Link to comment Share on other sites More sharing options...
Vista Posted May 5, 2017 Author Report Share Posted May 5, 2017 Hmmmm, just came across a 3.3:1 from retroford. Interesting. Link to comment Share on other sites More sharing options...
BeigeAl Posted May 5, 2017 Report Share Posted May 5, 2017 What's the history of that diff? How long has it been fitted? That looks like corrosion in the teeth (is it?) but it's on the over-run side. I would say that the corrosion shouldn't make any noise if the corrosion doesn't have any high spots - oil should sit in low-spots if that's what they are. If the marks are only on the over-run side and sitting proud they should only affect deceleration. When does the diff make a noise? You sure it's not the LSD you've got fitted? Looks like a Tran-x Salisbury? Link to comment Share on other sites More sharing options...
Vista Posted May 5, 2017 Author Report Share Posted May 5, 2017 It's been in the car since I bought it 13 years ago. I had it out and rebuilt / set up about 11 years ago. Yes the teeth are rusty but it makes a metal to metal grinding noise the whole time. It's a plate type LSD. I haven't driven the car much myself for several years, my wife tends to drive it and we take two cars out on runs carrying a child each. It appears she was oblivious to the racket it was making.......whereas I got in it to take it for an MOT last week and thought, "holy what's that noise???" the minute I picked away. I haven't seen it in the flesh yet, those are the pics I was sent this afternoon, will look at it myself tomorrow. The oil had quite heavy metal debris content so it may have been a bearing failure making most of the noise. Link to comment Share on other sites More sharing options...
BeigeAl Posted May 5, 2017 Report Share Posted May 5, 2017 Sometimes it's better to be ignorant than paranoid about every little noise! Wish I could loose my paranoia! Just about pull everything to pieces when I hear a noise! It's not looking good if there's loads of metal in the diff! Even so that crownwheel and pinion might be useful to hot-rod boys if it turns out no good for you. Be interested to see how this progresses and to hear about gear/teeth condition on the drive side - probably will have marks in them if the oil had metal in it. Link to comment Share on other sites More sharing options...
Vista Posted May 5, 2017 Author Report Share Posted May 5, 2017 Trust me, it wasn't a little noise. I'm a Marine Engineer by trade, I know when something sounds wrong and does need to be looked into. Link to comment Share on other sites More sharing options...
BeigeAl Posted May 5, 2017 Report Share Posted May 5, 2017 Trust me, it wasn't a little noise. I'm a Marine Engineer by trade, I know when something sounds wrong and does need to be looked into. I'm not sure if you took what I said the wrong way, or whether I've mistaken your intent? Didn't mean it shouldn't be taken to pieces, I meant that your missus just kept driving it and could somehow not be bothered by it! It's almost a blessing to be that way! I rebuild Ford diffs so I know when they're even slightly noisy there's a problem Link to comment Share on other sites More sharing options...
Vista Posted May 6, 2017 Author Report Share Posted May 6, 2017 probably a bit of both, all I meant was it was an extremely obvious noise that I was drawn to immediately I started driving, I was therefore puzzled (ok gobsmacked) that she hadn't noticed it and said something. Link to comment Share on other sites More sharing options...
BeigeAl Posted May 6, 2017 Report Share Posted May 6, 2017 Let's hope you can sort it - keep us posted. BTW - I've seen a 3.3 built up into a diff and they look OK but just aren't quite as good as a genuine Ford one. Link to comment Share on other sites More sharing options...
Vista Posted May 6, 2017 Author Report Share Posted May 6, 2017 Just been down and had a look at it. I reckon the noise I am hearing us at least in part down to a worn bearing. The corrosion pitting evident in the teeth is all on the overrun side but it does go tight as you rotate it through the section with corrosion evident. Link to comment Share on other sites More sharing options...
BeigeAl Posted May 6, 2017 Report Share Posted May 6, 2017 Sounds a bit ominous! Is there corresponding corrosion on the pinion head over-run side? I wonder if some moisture has got in and sat on top of the oil and caused those marks where the teeth have have contacting? Has the car been sat over-winter? Link to comment Share on other sites More sharing options...
Vista Posted May 6, 2017 Author Report Share Posted May 6, 2017 The car has sat quite a lot. I own 3 classics and am only home over the weekends so get little time to use them, hence encouraging my wife to bring one of them along to each event I attend. I can't really see the condition of the pinion till it gets stripped down. It looks OK from what can be seen installed though. Link to comment Share on other sites More sharing options...
Mexican Gerbil Posted May 6, 2017 Report Share Posted May 6, 2017 Looks good to me. You sure it's not the bag of spanners in the boot? Saying that it's got a tight spot. Link to comment Share on other sites More sharing options...
BeigeAl Posted May 6, 2017 Report Share Posted May 6, 2017 Backlash is 0.005-0.007" - if it's tighter than that there's an issue, and the bottom and top limit need to be quite close so you wouldn't want 0.005" at the tightest spot and 0.015" at the loosest - you'd want tightest ideally at 0.005" and loosest ideally no more than 0.007". Love the spanners in the boot comment! Link to comment Share on other sites More sharing options...
Rally Pack 2000 Posted May 8, 2017 Report Share Posted May 8, 2017 Something else that's getting rare, a decent oe 3/54 c/w/p Sick of stubbing my toes on crap laying around everywhere! Definitely something from Ford. Oh a new unused 3.54 CWP Just cluttering the place, time for a clean out. Just teasing . Actually its not something I have been sitting on for decades I only won that on Ebay Australia for about the equivalent of 150 pounds a couple of years ago. I was the only bidder. Got a new Quaife ATB to go with it. Something more important always needs doing first. 3 Link to comment Share on other sites More sharing options...
Vista Posted May 8, 2017 Author Report Share Posted May 8, 2017 I think that CWP could be put to much better use here in the UK Link to comment Share on other sites More sharing options...
Rally Pack 2000 Posted May 8, 2017 Report Share Posted May 8, 2017 I think that CWP could be put to much better use here in the UK Im sure thats where it started life but fled to the colonies. Link to comment Share on other sites More sharing options...
Vista Posted May 13, 2017 Author Report Share Posted May 13, 2017 Well I had the diff stripped and rebuilt with new bearings (the old ones were totally shot) and the LSD set up again and hey presto, but for standard plate type clonking on slow cornering, it's quiet as a mouse again. Glad I didn't opt for a new CWP now. 1 Link to comment Share on other sites More sharing options...
BeigeAl Posted May 13, 2017 Report Share Posted May 13, 2017 That's good news, glad it's all sorted. Just goes to show what these parts can withstand (ie pitting). 1 Link to comment Share on other sites More sharing options...
Rally Pack 2000 Posted May 13, 2017 Report Share Posted May 13, 2017 What sort of power are you running through this axle? Link to comment Share on other sites More sharing options...
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